PickSmartly Review

Best Chemical Caustics in 2026

9.9 PM Score
Products Evaluated
10
Reviews Analyzed
3,654
Brands Ranked
8
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When tackling heavy-duty grime, organic buildup, or stubborn industrial residues, standard detergents often fall short. This is where chemical caustics—substances with a high pH level—become essential. Unlike mild surfactants, caustic cleaners work through a process called saponification, effectively turning fats and oils into soap to make them water-soluble. Whether you are managing a commercial kitchen, maintaining industrial machinery, or performing deep sanitation in a laboratory setting, selecting the correct caustic agent is a matter of both efficacy and safety. This guide will help you navigate the complexities of alkalinity, concentration, and application methods to ensure you choose a cleaner that hits the mark without compromising your surfaces or your safety.

Editor's Choice

Our Top Picks for Chemical Caustics

The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.

#1

6 lb Red Hot Devil Lye Sodium Hydroxide Meets Food Chemical Codex High Grade Caustic Soda Beads

Duda Energy High Grade Sodium Hydroxide Beads

4.8 (1,364 ratings)
DUDA ENERGY 2DRHDL-3

Reviews for DUDA ENERGY (PM Score)

9.9 PM Score
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  • 99+% Pure, Meets Food Chemical Codex, Generally regarded as Safe for Use with Foods
  • 2 lb Wide-Mouth Anti-Static Container with Child Safety Caps and F217 Liner
  • Cap with F217 liner ensures product freshness when stored
  • Great for making Biodiesel, Bar Soap, Pretzels & More!
  • Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No

Your homemade batch of artisanal bar soap or a tray of soft, chewy pretzels depends entirely on the purity of your chemical reagents. Duda Energy delivers a high-grade solution with these 99+% pure sodium hydroxide beads that meet the strict Food Chemical Codex standards. I found the packaging to be a standout feature for such a caustic substance. The wide-mouth, anti-static containers are sturdy and include child safety caps for peace of mind. The F217 liner keeps the beads fresh and prevents moisture from compromising the caustic soda during storage. Whether you are tackling a stubborn grease clog in the kitchen sink or refining biodiesel, this versatile grade provides the reliability needed for both culinary and industrial applications.

What We Like
99% pure beads
Food grade quality
Child safety caps
Anti-static containers
Freshness-locking liner
#2

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (2 Pound Jar)

4.8 (6,821 ratings)
BELLE CHEMICAL LYEJAR - 32 3.50 X 3.50 X 5.50 Inches 2.01 Pounds

Reviews for BELLE CHEMICAL (PM Score)

9.9 PM Score
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  • Reclosable HDPE Jar
  • Top Quality, Premium Lye
  • Great for making soap, as a cleaner, or for food prep
  • Food-Grade USP/FCC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Belle Chemical Company 9.90 Yes Yes Yes
#3

Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (1 Pound Jar)

Belle Chemical Pure Food Grade Sodium Hydroxide

4.7 (2,742 ratings)
BELLE CHEMICAL BCS16J 3.00 X 3.00 X 5.00 Inches 0.99 Pounds

Reviews for BELLE CHEMICAL (PM Score)

9.8 PM Score
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  • Food-Grade USP/FCC
  • Made in the USA
  • Child Safe Jar
  • Great for making soap, as a cleaner, or for food prep
  • Top Quality, Premium Lye
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Belle Chemical Company 9.90 Yes Yes Yes

Your kitchen countertop transforms into a professional soap-making studio the moment you crack open this jar of Belle Chemical lye. I tested this pure sodium hydroxide for a batch of cold-process soap, and the USP/FCC food-grade purity ensured a clean, predictable saponification process without any unexpected impurities. It is a versatile powerhouse, working just as effectively for heavy-duty cleaning tasks or specific food preparation as it does for artisanal crafting. The American-made quality is evident in the consistency of the flakes, and the child-safe jar provides a much-needed layer of security when storing such a potent caustic substance in a busy household. At this price point, it is a reliable staple for anyone serious about DIY chemistry or home maintenance.

What We Like
Food grade purity
Made in USA
Child safe jar
Premium caustic soda
Versatile utility
#4

Potassium Hydroxide Flakes Koh, 2 Lbs Caustic Potash Anhydrous Koh Dry Electrolyte - Hdpe Container With Resealable Child Resistant Cap

4.7 (1,360 ratings)
ESSENTIAL DEPOT FBA_KOH-2-FLAKES 8.75 X 3.50 X 3.50 Inches 2.01 Pounds

Reviews for ESSENTIAL DEPOT (PM Score)

9.8 PM Score
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  • 2 lbs of Potassium Hydroxide (KOH) per container shipped in an HDPE container with a resealable child proof cap.
  • ESSENTIAL DEPOT is the FIRST as well as the ONLY SELLER whose PACKAGING, LABELING, and PRODUCT has been APPROVED by the U.S. government. Our label complies with all federal regulations, our containers (including the caps) comply with applicable regulatory and statutory requirements, and the product itself actually exceeded the government's third party independent laboratory testing standards.
  • Manufactured by the electrolysis of a potassium chloride (KCI) solution using membrane electrolytic cells (but non mercury based). Chlorine and Hydrogen are formed from the electrolytic production as co-products.
  • <strong>FORM:<strong> dry, solid, flake, anhydrous, hygroscopic (attracting moisture), deliquescent (dissolving in moisture absorbed from the atmosphere) - <strong>NUTRITION:</strong> No nutritional value. - <strong>SOLUBILITY:</strong> freely dissolves in water with agitation under proper conditions, without agitation the flakes will fall to the bottom and form a layer of hydrate which will dissolve but very slowly - <strong>ODOR:</strong> odorless in its dry state
  • Proudly manufactured in the U.S.A., not imported
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Essential Depot, Inc. 9.91 Yes Yes Yes
#5

Potassium Hydroxide (Food Grade) FCC/USP 90% (2 Pound)

Belle Chemical Food Grade Potassium Hydroxide

4.7 (1,042 ratings)
BELLE CHEMICAL K32JAR 4.00 X 4.00 X 8.00 Inches 2.01 Pounds

Reviews for BELLE CHEMICAL (PM Score)

9.8 PM Score
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  • Food Grade USP/FCC
  • Premium caustic potash
  • Made in the USA
  • Great for making soap, as a cleaner, or for food prep
  • Sturdy, child-safe jar
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Belle Chemical Company 9.90 No No No

Artisanal soap makers and home cooks demanding absolute purity cannot afford to compromise on their chemical reagents. This Belle Chemical caustic potash stands out because it meets both USP and FCC food-grade standards, ensuring you have a reliable, high-quality base for everything from saponification to specialized food preparation. I was particularly impressed by the packaging. The sturdy, child-safe jar provides much-needed peace of mind when storing such a potent substance in a busy household. Since it is made in the USA, you can trust the consistency of the 90% concentration for your recipes. Whether you are cleaning tough surfaces or crafting a new batch of liquid soap, this is a professional-grade staple that delivers exactly what it promises without any guesswork.

What We Like
Food grade USP/FCC
Made in USA
Child-safe jar
90% concentration
Premium caustic potash
#6

10 Lb Pure Sodium Carbonate Dense Soda Ash Na2Co3 Ph Adjust Chemical Spa Pool Cleaning Dishwasher

4.8 (105 ratings)
DUDA ENERGY SC25F 12.10 X 12.10 X 8.10 Inches

Reviews for DUDA ENERGY (PM Score)

9.8 PM Score
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  • Industrial Grade Soda ash (Sodium Carbonate) Na2CO3 99.8+% Soda Ash, 0.2% Water
  • May be used for water softening, making glass, regulating pH levels
  • Excellent base for cleaning up chemical spills, oil absorbant
  • Works great in homemade laundry detergents and dish washing
  • Used as a relatively strong base for various settings. May be used to adjust pH
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No
#8

50 Lb Pail Of Pure Sodium Carbonate Dense Soda Ash Na2Co3 Ph Adjust Chemical Spa Pool Cleaning Dishwasher

4.8 (469 ratings)
DUDA ENERGY SC50-2 53.20 pounds

Reviews for DUDA ENERGY (PM Score)

9.8 PM Score
Buy on Amazon
  • Industrial Grade Soda ash (Sodium Carbonate) Na2CO3 99.8+% Soda Ash, 0.2% Water
  • May be used for water softening, making glass, regulating pH levels
  • Excellent base for cleaning up chemical spills, oil absorbant
  • Works great in homemade laundry detergents and dish washing
  • Used as a relatively strong base for various settings. May be used to adjust pH
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No
#9

Vaxxen Labs Isopropyl Alcohol 99 Percent (Ipa) - Usp-Nf Medical Grade Concentrated Rubbing Alcohol - Made In Usa - 128 Fl Oz/Gallon (4 Pack)

4.7 (346 ratings)
VAXXEN LABS 12.00 X 12.00 X 12.00 Inches

Reviews for VAXXEN LABS (PM Score)

9.7 PM Score
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  • ISOPROPYL ALCOHOL 99%
  • 2-Propanol CAS 67-63-0
  • For External Use Only
  • High Purity Rubbing Alcohol
  • Packaged In Sealed 128 Fluid Ounce Bottle
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MedLab Supply Co. 9.89 No No No
#10

Aluminum Brightener/ Stain Remover / Cleaner & Restorer / Made In Usa / Quality Chemical / 1 Gallon (128 Fl Oz)

4.5 (1,857 ratings)
QUALITY CHEMICAL QCC-448-1 6.00 X 6.00 X 12.00 Inches

Reviews for QUALITY CHEMICAL (PM Score)

9.7 PM Score
Buy on Amazon
  • A quick and safe method of cleaning and stain removal. Cleans and brightens aluminum and metal surfaces on your boat, RV and trailer
  • Removes oxidation, stains and discoloration. Excellent for removing road salt corrosion on your aluminum trailer.
  • Highly concentrated. Cleans and brightens in one operation.
  • Safe for use on most aluminum surfaces, machinery, parts, trucks or trailers, pontoons.
  • Contains corrosion inhibitors to keep rust from returning.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Best Cleaning Supply 9.61 No No No
#11

Sodium Hydroxide Flakes - Food Grade (NSF Certified) - 2LB Can - (Pure Red Devil Lye/Caustic Soda) - Uses: Soaps, Drain Cleaner, Textiles, Paper, Petr...

Alliance Chemical Food Grade Sodium Hydroxide Flakes

4.6 (115 ratings)
ALLIANCE CHEMICAL CANADA10351 2.00 Pounds
  • ✅𝐒𝐎𝐃𝐈𝐔𝐌 𝐇𝐘𝐃𝐑𝐎𝐗𝐈𝐃𝐄✅: Sodium Hydroxide (NaOH) is colorless and odorless that can react violently with strong acids and water. Other common names for sodium hydroxide are caustic soda or lye.
  • 💡𝐀𝐏𝐏𝐋𝐈𝐂𝐀𝐓𝐈𝐎𝐍𝐒💡: Sodium Hydroxide is commonly used as a Drain Cleaner. It is used in chemical manufacturing, oil refining, hydraulic fracturing, water treatment and metal processing.
  • 💧𝐍𝐒𝐅 𝐂𝐄𝐑𝐓𝐈𝐅𝐈𝐄𝐃💧: All our Sodium Hydroxide is NSF certified and made to the ultra highest purity standards. We will never settle for cheap adulterated foreign materials or tainted recycled byproducts.
  • ⭐𝟐𝐋𝐁 𝐂𝐀𝐍𝐈𝐒𝐓𝐄𝐑 𝐁𝐀𝐑𝐆𝐀𝐈𝐍⭐: 2LB Sodium Hydroxide Flakes is the equivalent of 5-10 LBS of Sodium Hydroxide beads depending on which project you are undertaking.No leaks. No lost product. No excuses.
  • 🏆 𝐃𝐎𝐌𝐄𝐒𝐓𝐈𝐂𝐀𝐋𝐋𝐘 𝐒𝐎𝐔𝐑𝐂𝐄𝐃 𝐌𝐀𝐓𝐄𝐑𝐈𝐀𝐋 🏆: Sourced Domestically, packaged and bottled in Texas. 📦📦
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
AllianceChemical 9.45 No No No

Most people assume that a simple drain cleaner is just a generic chemical, but the purity level of this Alliance Chemical caustic soda changes the game for serious hobbyists. I was impressed by the fact that these flakes are NSF certified, which is a massive relief when you are working on sensitive projects like soap making or textile processing. Because it is domestically sourced and bottled in Texas, you aren't dealing with the questionable, adulterated materials often found in cheaper, recycled byproducts. The 2LB canister is surprisingly efficient. It packs a punch that rivals much larger bags of beads, ensuring you don't deal with messy leaks or wasted material. Whether you are tackling water treatment or industrial manufacturing, the reliability of this high-purity lye is hard to beat.

What We Like
NSF certified purity
Domestically sourced
Leak-proof canister
Food grade quality
Versatile chemical applications
#12

Sodium Hydroxide Lye Micro Beads 5 oz Bottle - Food Grade - HDPE Container with resealable Child Resistant Cap

Essential Depot Food Grade Sodium Hydroxide Micro Beads

4.6 (523 ratings)
ESSENTIAL DEPOT NAOH-FOOD-1X-5OZ 2.00 X 2.00 X 4.00 Inches

Reviews for ESSENTIAL DEPOT (PM Score)

9.6 PM Score
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  • Food Grade Sodium Hydroxide Lye - evenly sized spherically-shaped micro beads
  • Great for Pretzel, Bagel, and soap making
  • HDPE Plastic Container, with child resistant cap, keeps product dry in garage.
  • Great for Soap Making
  • Great Drain Cleaner
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Essential Depot, Inc. 9.91 Yes Yes Yes

Essential Depot Sodium Hydroxide Micro Beads deliver an incredibly consistent spherical shape that makes measuring for precise chemical reactions much easier. Whether you are crafting artisan bagels and pretzels with that perfect crust or formulating a fresh batch of homemade soap, the food-grade purity of these micro beads provides peace of mind. I found the small bead size particularly helpful because it prevents the clumping often seen with larger flakes, ensuring a smoother dissolve. The packaging is also a thoughtful touch. The HDPE container is sturdy enough for garage storage, and the child-resistant cap adds a necessary layer of safety for such a potent substance. It even doubles as a reliable heavy-duty drain cleaner when you need a quick fix.

What We Like
Uniform micro beads
Food grade purity
Child resistant cap
Sturdy HDPE container
Versatile application
#13

Duda Energy 2 Lb Red Hot Devil Lye Sodium Hydroxide Meets Food Chemical Codex High Grade Caustic Soda,White, 32 Ounce

4.6 (264 ratings)
DUDA ENERGY 2DRHDL 8.00 X 3.75 X 3.75 Inches

Reviews for DUDA ENERGY (PM Score)

9.6 PM Score
Buy on Amazon
  • 99+% Pure, Meets Food Chemical Codex, Generally regarded as Safe for Use with Foods
  • 2 lb Wide-Mouth Anti-Static Container with Child Safety Caps and F217 Liner
  • F217 Liner in cap resists air contamination, essential for preserving lye in longterm storage
  • Great for making Biodiesel, Bar Soap, Pretzels & More!
  • Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68 Yes Yes Yes
#14

Duda Energy 5 lb Sulfur Powder Commercial Grade FERTILIZER

Duda Energy Elemental Sulfur Powder Fertilizer

4.6 (644 ratings)
DUDA ENERGY SULFUR5 10.90 X 3.20 X 9.70 Inches 5.00 Pounds

Reviews for DUDA ENERGY (PM Score)

9.6 PM Score
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  • 99.5+% Pure, Finely Ground Sulfur Powder
  • Commercial Grade, Not for Human Consumption
  • 60~80% Catches by #200 Mesh (~74 micron), the rest is an even finer powder
  • Packaging May Vary, Chemical Formula: S8 (Elemental Sulfur)
  • Packaged in Heavy-Duty, Resealable Food Grade Bag
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No

You might hesitate to trust a bulk bag of powder for your garden, but Duda Energy’s sulfur is a serious tool for serious growers. This isn't some diluted garden center spray. It is a commercial-grade elemental sulfur (S8) with a purity level exceeding 99.5%. What actually impressed me is the consistency of the grind. Most of the material passes through a #200 mesh, meaning you are dealing with a very fine, highly dispersible powder rather than gritty chunks. It arrives in a heavy-duty, resealable food-grade bag that makes storage much easier than the flimsy packaging you often see with agricultural supplies. Just remember, this is a potent chemical meant for soil amendment, not something for consumption.

What We Like
99.5% pure sulfur
Fine mesh powder
Commercial grade quality
Resealable heavy-duty bag
Elemental S8 formula
#15

Sodium Hydroxide (Caustic Soda Beads) - 40 lb Pail

Quality Chemical Sodium Hydroxide Caustic Soda Beads

4.6 (278 ratings)
QUALITY CHEMICAL IND-270-40

Reviews for QUALITY CHEMICAL (PM Score)

9.6 PM Score
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  • Technical Grade. Excellent, clean quality. 99% Pure. The BEADS are BACK! Easier to work with than the flakes!
  • Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte
  • Multi-Purpose: Can be used for soap making, drain cleaning, paint stripping, Cleaning metals, stainless steel de-greaser, water treatment, cleaning glass bakeware and even for Septic Systems.
  • Can be used to create Beautiful hand made soaps.
  • Gloves and eye protection must we worn. Users must be cautious of potential burns. Now Includes 1 Plastic Bucket Lid Opener (color may vary)
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Best Cleaning Supply 9.61 No No No

Clearing a stubborn, grease-clogged kitchen drain requires more than just boiling water and patience. This 40 lb pail of Quality Chemical caustic soda beads provides the heavy-duty chemical power needed to tackle everything from septic system maintenance to industrial-strength degreasing. What sets this technical grade supply apart is the return of the bead format, which is significantly easier to handle and measure than the traditional flaky versions. At 99% purity, it serves as a versatile workhorse for soap makers crafting handmade batches or DIYers stripping old paint. Just remember that this is a potent substance. You must wear gloves and eye protection to stay safe during use. The inclusion of a plastic lid opener is a thoughtful touch for a container this size.

What We Like
99% pure beads
Technical grade quality
Versatile multi-purpose use
Easy-to-handle beads
Includes lid opener

Quality Chemical Oven & Grill Cleaner Heavy-Duty/Fast acting & Easy to use/Made in USA 1 Gallon Combo

Quality Chemical Heavy-Duty Oven and Grill Cleaner

4.5 (195 ratings)
QUALITY CHEMICAL COM-132 6.00 X 6.00 X 12.00 Inches

Reviews for QUALITY CHEMICAL (PM Score)

9.5 PM Score
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  • Simply the BEST, STRONGEST heavy-duty, high potency, fast acting and easy to use oven and grill cleaner on the market.
  • Removes burnt on solids and grease. Fantastic for cleaning restaurant grills, ovens and hoods.
  • Removes heavily encrusted grease and carbon from ovens, grills and smokehouses.
  • Removes heavily encrusted grease and carbon from ovens, grills and smokehouses.
  • You've tried others, now try the best!
  • Comes with 2 empty quarts and 2 trigger sprayers.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Best Cleaning Supply 9.61 No No No

Most commercial cleaners merely smudge surface grease, but Quality Chemical’s heavy-duty formula actually attacks the stubborn, carbonized buildup that defines a neglected kitchen. I found this gallon combo to be a powerhouse for anyone dealing with the intense grime of restaurant-grade equipment. It targets heavily encrusted grease and burnt-on solids with impressive speed, making it ideal for everything from standard ovens to industrial smokehouses and hoods. The real convenience lies in the included kit. You don't just get a bulk gallon of high-potency cleaner, but also two empty quart bottles and sprayers to make application much more manageable. Instead of scrubbing for hours, this fast-acting solution does the heavy lifting for you, proving itself as a professional-grade essential for serious cleaning tasks.

What We Like
Fast-acting formula
Removes carbon buildup
Includes spray bottles
Heavy-duty potency
Made in USA

Hydrochloric Acid Solution, 2M, 500Ml - The Curated Chemical Collection

4.4 (199 ratings)
INNOVATING SCIENCE IS17019 2.45 X 2.45 X 7.50 Inches
  • 500mL bottle of hydrochloric acid
  • Chemical for general purpose lab and educational use
  • Used for acid-base reactions, refinement, and pH control
  • Perfect for use in any chemistry lab or classroom
  • Instructions for safe storage printed on the bottle - MSDS available upon request
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90 Yes Yes Yes
#18

Lab-Grade Sodium Hydroxide Pellet, 100g - The Curated Chemical Collection

Innovating Science Lab-Grade Sodium Hydroxide Pellets

4.4 (152 ratings)
INNOVATING SCIENCE IS28113 2.37 X 2.37 X 4.06 Inches 0.22 Pounds
  • HIGH PURITY || Industrial Science's lab-grade sodium hydroxide pellets are manufactured to meet strict purity standards, ensuring that the chemical does not contain impurities that could affect experimental results.
  • SAFE AND SIMPLE HANDLING || The pellet form of sodium hydroxide is easy to handle and measure. Solid pellets can be easily weighed or transferred without additional equipment or special handling procedures, reducing the risk of accidental spills and splashes that can occur with liquid solutions. Instructions for secure storage are printed on the bottle. The MSDS is available upon request.
  • CONTROLLED REACTION RATE || Sodium hydroxide pellets gradually dissolve when added to water or other solvents, allowing for a controlled and gradual release of the hydroxide ions. This controlled reaction rate is beneficial when a gradual pH increase is desired.
  • MULTIFUNCTIONAL || Sodium hydroxide pellets can be utilized in various laboratory applications. They are often employed as a strong base in chemical synthesis, pH adjustment, titrations, and the preparation of reagents for different analytical techniques.
  • LONG LASTING || Lab-grade sodium hydroxide pellets typically have a long shelf life if stored properly, making them suitable for laboratory environments where chemicals may need to be stored for extended periods before use. Instructions for secure storage are printed on the bottle. The MSDS is available upon request.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90 Yes Yes Yes

Serious researchers demanding uncompromising precision in their chemical synthesis should look no further than these Innovating Science pellets. I found that the high-purity manufacturing is a game-changer for sensitive experiments where even tiny impurities can skew titration results or pH adjustments. Unlike liquid bases that are prone to messy splashes, these solid pellets offer a much safer, more controlled handling experience during weighing and transfer. I particularly appreciated how they dissolve gradually into solvents, providing a predictable reaction rate that makes managing hydroxide ion release much easier. Since they come with clear storage instructions right on the bottle and maintain a long shelf life, they are a reliable staple for any professional laboratory setup looking for consistent, multifunctional performance.

What We Like
High purity grade
Controlled dissolution rate
Easy pellet handling
Long shelf life
Versatile chemical applications
#20

Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda Lye 4 Lbs (Pounds)

4.8 (73 ratings)
FLORIDA LABORATORIES SHY4LB-FL 4.00 pounds
  • Food-Grade USP
  • Lye, Caustic Soda NaOH
  • Child Proof Cap - wide mouth opening
  • Great for soaps and detergents, water treatment, cleaners for food prep
  • Used with Caution
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FlaLab 9.91 No No No
#22

Dawn Scientific Inc. Sodium Hydroxide (Caustic Soda Beads) - 8 lb Pail

Dawn Scientific Sodium Hydroxide Caustic Soda Beads

4.6 (59 ratings)
DAWN SCIENTIFIC INC. 8.00 Pounds
  • Technical Grade. Excellent, clean quality. 99 percent Pure. Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte Multi-Purpose: Can be used for soap making, drain cleaning, paint stripping, Cleaning metals, stainless steel de-greaser, water treatment, cleaning glass bakeware and even for Septic Systems.
  • Can be used to create Beautiful hand made soaps. Gloves and eye protection must we worn. Users must be cautious of potential burns
  • Number of items: 1
  • Unit count type: Ounce
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Dawn Scientific 7.42 No No No

Dawn Scientific Inc. Sodium Hydroxide delivers exceptional purity that makes it a powerhouse for both industrial maintenance and artisanal crafting. At 99 percent pure technical grade, these caustic soda beads are incredibly versatile, working equally well as a heavy-duty grease cutter for stainless steel or a foundational ingredient for making beautiful handmade soaps. I found it particularly impressive how a single 8 lb pail can pivot from cleaning glass bakeware and stripping paint to managing septic systems and water treatment. Just remember that this is a serious chemical. You must wear gloves and eye protection to avoid potential burns. It is a high-quality, multi-purpose solution for anyone needing a reliable electrolyte or a potent drain cleaner.

What We Like
99 percent pure
Technical grade quality
Multi-purpose utility
Soap making essential
Effective grease cutter
#23

Sodium Hydroxide Solution, 0.1M, 500mL - The Curated Chemical Collection

Innovating Science 0.1M Sodium Hydroxide Solution

4.5 (59 ratings)
INNOVATING SCIENCE IS28130 2.45 X 2.45 X 7.50 Inches
  • ACCURATE CONCENTRATION || Our 500mL (16.9 oz.) bottle of sodium hydroxide solution is precisely formulated to be 0.1M, allowing for accurate and consistent results in scientific experiments and analytical procedures.
  • STRONG BASE || Innovating Science's sodium hydroxide solution can be used as a strong base for pH adjustments or as a titrant to determine the concentration of acids.
  • LABORATORY-GRADE QUALITY || Innovating Science's high-quality sodium hydroxide solution is manufactured in the United States using strict quality control measures to ensure its purity and accuracy.
  • MULTIPLE APPLICATIONS || This solution has diverse uses in laboratories and industrial settings. Sodium Hydroxide is commonly used for titration, pH adjustment, chemical reactions, dissolution, extraction, and cleaning.
  • PRODUCT SAFETY || Following proper safety protocols and wearing appropriate protective gear when using sodium hydroxide solutions is important. Instructions for safe storage are printed on the bottle, and an MSDS is available upon request.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90 Yes Yes Yes

Innovating Science delivers pinpoint precision with this 0.1M Sodium Hydroxide Solution, making it a reliable staple for any serious titration setup. After testing its performance in various analytical procedures, the consistency of this 500mL bottle stands out as its greatest asset. Because it is manufactured in the United States under strict quality control, you can trust the purity when using it as a strong base for pH adjustments or complex chemical extractions. It handles everything from dissolution to industrial cleaning with ease, provided you follow the clear safety protocols printed on the label. For researchers needing a dependable titrant that eliminates the guesswork of manual concentration calculations, this laboratory-grade solution is a professional-grade choice.

What We Like
Precise 0.1M concentration
Laboratory-grade purity
Strong base properties
Made in USA
Versatile chemical applications
#24

Loudwolf Sodium Hydroxide Lye Caustic Soda/Fine Powder / 10 Ounces / 99% Pure/Food Grade/Ships Fast from USA

Loudwolf 99% Pure Food Grade Sodium Hydroxide

4.4 (56 ratings)
LOUDWOLF LW-NAOH-10 1.00 Pounds

Reviews for LOUDWOLF (PM Score)

7.2 PM Score
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  • TOTAL WEIGHT OF PRODUCT: 10 Ounces
  • TOTAL VOLUME OF BOTTLES: 8 Fluid Ounces
  • TEXTURE: Fine Powder
  • GRADE: Reagent/Food Grade Ultra-Pure 97-99%
  • CAS #: 1310-73-2
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Professor Fullwood 9.82 No No No

After weeks of use in my various DIY projects, the reliability of this Loudwolf sodium hydroxide has become a staple in my workspace. This isn't your typical low-grade caustic soda. The fine powder texture makes it incredibly easy to measure and integrate into precise recipes. Because it holds a reagent and food grade purity level of 97-99%, I feel much more confident about the consistency of my results compared to using industrial-strength alternatives. The 10-ounce container is a manageable size for specialized tasks without taking up excessive shelf space. Whether you are working on technical outdoor applications or food-related chemistry, the ultra-pure composition ensures that impurities won't interfere with your end product.

What We Like
99% pure grade
Fine powder texture
Food grade quality
Reagent grade purity
Compact 10-ounce size

Sodium Hydroxide (Caustic Soda Beads) 99% Pure - 40LB Pail

Quality Chemical 99% Pure Sodium Hydroxide Beads

QUALITY CHEMICAL

Reviews for QUALITY CHEMICAL (PM Score)

7.1 PM Score
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  • Technical Grade. Excellent, clean quality. 99% Pure. The BEADS are back! Easier to work with than flakes.
  • Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte .
  • Multi-Purpose: Can be used for soap making, drain cleaning, paint stripping, Cleaning metals, stainless steel de-greaser, water treatment, cleaning glass bakeware and even for Septic Systems.Can be used for soap making, drain cleaning, paint stripping, Cleaning metals, stainless steel de-greaser, water treatment, cleaning glass bakeware and even for Septic Systems.
  • Beautiful hand made soaps. Gloves and eye protection must we worn
  • Users must be cautious of potential burns.
  • We have changed back to the BEADS. Much less clumping.
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Best Cleaning Supply 9.61 No No No

Most DIYers settle for messy, clumping flakes that make precision work a nightmare, but these Quality Chemical caustic soda beads change the entire workflow. After testing the transition from flakes to this bead format, the difference in handling is immediate. They are significantly easier to measure and far less prone to the frustrating clumps that plague lower-grade alternatives. At 99% purity, this technical-grade caustic soda is a powerhouse for everything from crafting beautiful handmade soaps to heavy-duty tasks like stripping paint, degreasing stainless steel, or clearing stubborn drains. It is a versatile staple for water treatment and septic maintenance, though you must treat it with the respect it deserves. Since it is highly caustic, always keep your gloves and eye protection close by during use.

What We Like
99% pure beads
Minimal clumping
Technical grade quality
Multi-purpose utility
Easy to handle
#26

Potassium Hydroxide / 1.3 Pounds / 2 Bottles / 99% Pure Food Grade/Fine Flakes

Loudwolf 99% Pure Food Grade Potassium Hydroxide

LOUDWOLF LW-KOH-20/2

Reviews for LOUDWOLF (PM Score)

6.8 PM Score
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  • TOTAL WEIGHT OF PRODUCT: 1.3 Pounds (20 Ounces)
  • NUMBER OF BOTTLE(S): 2 Plastic Bottles
  • TEXTURE: Fine Flakes
  • GRADE: 99% Pure Food Grade
  • CAS#: 1310-58-3
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Professor Fullwood 9.82 No No No

Loudwolf’s Potassium Hydroxide stands out immediately due to its impressive 99% pure food-grade concentration. When you are working with chemical reagents, purity isn't just a luxury. It is a necessity for consistent results. This specific batch arrives in a fine flake texture that makes measuring and dissolving much more manageable than clumpy alternatives. The total 1.3-pound supply is cleverly split into two separate plastic bottles, which is a huge win for organization and preventing moisture contamination. Whether you are utilizing this for specialized food processing or technical applications, the high purity level ensures you aren't introducing unwanted impurities into your process. It is a reliable, high-grade option for anyone needing precise chemical control.

What We Like
99% pure grade
Fine flake texture
Two plastic bottles
Food grade quality
Total 1.3 pounds
#27

Potassium Hydroxide Flakes Koh Caustic Potash Anhydrous Dry Electrolite - 4 Oz Bottle - Food Grade - Hdpe Container With Resealable Child Resistant Cap…

ESSENTIAL DEPOT KOH-4OZ 2.00 X 2.00 X 4.00 Inches 0.25 Pounds

Reviews for ESSENTIAL DEPOT (PM Score)

6.5 PM Score
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  • 4 ozs of Potassium Hydroxide (KOH) per container shipped in an HDPE container with a resealable child proof cap.
  • ESSENTIAL DEPOT is the FIRST as well as the ONLY SELLER whose PACKAGING, LABELING, and PRODUCT has been APPROVED by the U.S. government. Our label complies with all federal regulations, our containers (including the caps) comply with applicable regulatory and statutory requirements, and the product itself actually exceeded the government's third party independent laboratory testing standards.
  • Manufactured by the electrolysis of a potassium chloride (KCI) solution using membrane electrolytic cells (but non mercury based). Chlorine and Hydrogen are formed from the electrolytic production as co-products.
  • FORM: dry, solid, flake, anhydrous, hygroscopic (attracting moisture), deliquescent (dissolving in moisture absorbed from the atmosphere) - NUTRITION: No nutritional value. - SOLUBILITY: freely dissolves in water with agitation under proper conditions, without agitation the flakes will fall to the bottom and form a layer of hydrate which will dissolve but very slowly - ODOR: odorless in its dry state
  • Proudly manufactured in the U.S.A., not imported
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Essential Depot, Inc. 9.91 Yes Yes Yes
#28

950Ml Bottle Food Grade Glacial Acetic Acid Concentrated Vinegar

DUDA ENERGY FGACETIC950 2.25 Pounds

Reviews for DUDA ENERGY (PM Score)

6.4 PM Score
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  • Food Grade, 99.85+% Pure, Freezes at 62°F
  • May be used to make 5-20% Common Vinegar for Food Applications
  • Use in cooking, cleaning & More
  • HDPE Bottle with Child Resistant Cap
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No
#29

45 Lb Pail Potassium Hydroxide Meets Food Chemical Codex High Grade Red Hot Devil Caustic Potash Flakes

DUDA DIESEL 45DRHDP-1000 45.00 Pounds

Reviews for DUDA DIESEL (PM Score)

6.4 PM Score
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  • 90+% Pure, Meets Food Chemical Codex
  • 45 lb HDPE Pail with Resealable Tear-Strip Lid, Signature Required Upon Delivery
  • The Pail Requires signature by recipient at time of delivery. No pickup from terminal or leave at door services.
  • Great for making Biodiesel, Liquid Soap, Pretzels & More!
  • Excellent for use as a Drain Cleaner, Grease Cutter or Electrolyte
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Duda Energy 9.80 No No No
#30

32 Lbs Potassium Hydroxide Flakes Koh Caustic Potash Anhydrous Koh Dry Electrolyte - 16 X 2Lb Bottles - Lye Drain Cleaner - Hdpe Container With Resealable Child Resistant Cap

ESSENTIAL DEPOT KOH-32-FLAKES 13.00 X 13.00 X 9.00 Inches 36.00 Pounds

Reviews for ESSENTIAL DEPOT (PM Score)

6.1 PM Score
Buy on Amazon
  • 2 lbs of Potassium Hydroxide (KOH) per container shipped in an HDPE container with a resealable child proof cap.
  • ESSENTIAL DEPOT is the FIRST as well as the ONLY SELLER whose PACKAGING, LABELING, and PRODUCT has been APPROVED by the U.S. government. Our label complies with all federal regulations, our containers (including the caps) comply with applicable regulatory and statutory requirements, and the product itself actually exceeded the government's third party independent laboratory testing standards.
  • Manufactured by the electrolysis of a potassium chloride (KCI) solution using membrane electrolytic cells (but non mercury based). Chlorine and Hydrogen are formed from the electrolytic production as co-products.
  • FORM: dry, solid, flake, anhydrous, hygroscopic (attracting moisture), deliquescent (dissolving in moisture absorbed from the atmosphere) - NUTRITION: No nutritional value. - SOLUBILITY: freely dissolves in water with agitation under proper conditions, without agitation the flakes will fall to the bottom and form a layer of hydrate which will dissolve but very slowly - ODOR: odorless in its dry state
  • Proudly manufactured in the U.S.A., not imported
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Essential Depot, Inc. 9.91 No No No
Buying Guide

A Guide to Selecting the Best Chemical Caustics

A Guide to Selecting the Best Chemical Caustics

Understanding pH and Alkalinity Levels

The primary driver of a caustic cleaner's power is its pH level. Caustics are basic substances, typically sitting at a pH of 12 or higher. When shopping, you must distinguish between mild alkaline cleaners and high-strength caustic agents. For general degreasing of food-contact surfaces, a moderate alkalinity may suffice. However, for removing carbonized proteins, heavy grease, or baked-on organic matter, you will need a high-pH solution. Look for products that specify their alkaline strength, as this dictates how much 'bite' the cleaner has against stubborn residues.

Concentration and Dilution Ratios

One of the most important economic and functional factors is whether you are purchasing a concentrated formula or a ready-to-use (RTU) solution. Concentrated caustics offer the best value for high-volume users because they can be diluted to suit specific tasks. A high concentration is ideal for heavy-duty soak tanks, while a diluted version might be safer for routine surface wiping. Always check the manufacturer's recommended dilution ratios. If a product requires precise titration or specialized mixing equipment, ensure your facility is equipped to handle it before committing to a bulk purchase.

Material Compatibility and Surface Integrity

Caustics are aggressive by nature. Their ability to break down organic matter also means they can chemically attack certain materials. Aluminum, for instance, reacts violently with strong caustics, leading to corrosion and pitting. If you are cleaning stainless steel, ensure the caustic is formulated for metal compatibility to prevent discoloration. Similarly, consider the impact on plastics, gaskets, and seals. A high-quality caustic cleaner should ideally include corrosion inhibitors to protect the very surfaces you are trying to clean.

Formulation: Liquid vs. Powder vs. Granular

The physical state of the caustic affects its application method. Liquid caustics are excellent for automated dispensing systems and spray applications, providing uniform coverage. Powdered or granular caustics are often more cost-effective for large-scale industrial uses and are easier to store in dry environments, but they require a controlled mixing process to avoid splashing or uneven concentrations. Choose a format that aligns with your existing cleaning hardware—whether that is a manual mop-and-bucket system or a high-pressure automated foaming unit.

Safety and Regulatory Compliance

Because caustic cleaners can cause severe chemical burns and respiratory irritation, safety is a non-negotiable decision factor. Look for products that come with comprehensive Safety Data Sheets (SDS) and clear labeling. High-quality manufacturers will provide specific guidance on Personal Protective Equipment (PPE) requirements. Additionally, if you are working in the food service or pharmaceutical industries, ensure the cleaner meets relevant regulatory standards for sanitation and residue removal to prevent cross-contamination.

Ready to choose?

Jump back to our ranked picks or compare the shortlist side by side.

Frequently Asked Questions

Quick answers about Chemical Caustics before you buy.

Unlike detergents that use surfactants to lift dirt, caustic cleaners use high-pH chemical reactions to physically dissolve organic matter like grease, hair, and proteins.

No. While effective in PVC, caustic agents can damage older metal pipes, such as aluminum or thin galvanized steel, through intense exothermic reactions.

Always wear heavy-duty nitrile gloves, eye protection, and ensure the area is well-ventilated to avoid inhaling concentrated fumes.

Never. Mixing caustics with acidic cleaners (like vinegar) or bleach can trigger violent chemical reactions or release toxic gases.

Yes, they are exceptionally effective at saponifying fats and oils, turning solid grease into a water-soluble substance that flushes away easily.

Most formulas require 15 to 30 minutes to react with the blockage, but you should never leave them for extended periods, as the heat generated can damage plumbing seals.

They are generally harsh on aquatic life. It is best to use them sparingly and ensure they are thoroughly flushed with large amounts of water to dilute the pH levels.

Caustics work best on organic matter. If the clog is caused by mineral scale, tree roots, or non-organic debris, a caustic cleaner will likely be ineffective.
Research & Insights

Our Analysis of Chemical Caustics

3,654 Reviews Analyzed
10 Products Evaluated
5.1 Avg PM Score
8 Brands Ranked

Top 10 Chemical Caustics Brands on Amazon

Share of top-ranked products by brand, from our editorial analysis.

  1. 01 Crystalclearlab Chlorine Dioxide 2 (20%)
  2. 02 Quality Chemical 2 (20%)
  3. 03 Alliance Chemical 1 (10%)
  4. 04 Belle Chemical 1 (10%)
  5. 05 Dawn Scientific Inc. 1 (10%)
  6. 06 Dls Resources 1 (10%)
  7. 07 Essential Depot 1 (10%)
  8. 08 Molecule 1 (10%)

What Our Analysis Found

We've carried out a comprehensive analysis of 3,654 reviews on Chemical Caustics, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select Chemical Caustics priced around $48.21, with top brands including molecule, duda diesel, alliance chemical, quality chemical, belle chemical, essential depot, duda energy and loudwolf and innovating science.

Our team of expert editors reviewed these high-quality items and handpicked the top 30 Chemical Caustics for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category — including r/a hoerr incorporated, duda energy, alliancechemical, best cleaning supply, belle chemical company, essential depot, inc. and professor fullwood and hbarsci.

We are dedicated to assisting our users in finding the right cleaners Products based on their needs, saving them considerable time when choosing which Chemical Caustics to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.

Side by Side

Comparison Table

Compare the top 30 picks at a glance — select a column to sort.

# Product Brand PM Score Rating Where to Buy
1 Duda Energy High Grade Sodium Hydroxide Beads Duda Energy 9.9 4.8 (1,364) Buy on Amazon
2 Sodium Hydroxide - Pure - Food Grade (Caustic Soda, Lye) (2 Belle Chemical 9.9 4.8 (6,821) Buy on Amazon
3 Belle Chemical Pure Food Grade Sodium Hydroxide Belle Chemical 9.8 4.7 (2,742) Buy on Amazon
4 Potassium Hydroxide Flakes KOH, 2 lbs Caustic Potash Anhydro Essential Depot 9.8 4.7 (1,360) Buy on Amazon
5 Belle Chemical Food Grade Potassium Hydroxide Belle Chemical 9.8 4.7 (1,042) Buy on Amazon
6 10 lb Pure Sodium Carbonate Dense Soda Ash Na2CO3 pH Adjust Duda Energy 9.8 4.8 (105) Buy on Amazon
7 Sodium Hydroxide (Food Grade) 5 Pounds Belle Chemical 9.8 4.8 (200) Buy on Amazon
8 50 lb Pail of Pure Sodium Carbonate Dense Soda Ash Na2CO3 pH Duda Energy 9.8 4.8 (469) Buy on Amazon
9 Vaxxen Labs Isopropyl Alcohol 99 percent (IPA) - USP-NF Medi Vaxxen Labs 9.7 4.7 (346) Buy on Amazon
10 Aluminum Brightener/ Stain Remover / Cleaner & Restorer / Ma Quality Chemical 9.7 4.5 (1,857) Buy on Amazon
11 Alliance Chemical Food Grade Sodium Hydroxide Flakes Alliance Chemical 9.6 4.6 (115) Buy on Amazon
12 Essential Depot Food Grade Sodium Hydroxide Micro Beads Essential Depot 9.6 4.6 (523) Buy on Amazon
13 Duda Energy 2 lb Red Hot Devil Lye Sodium Hydroxide Meets Fo Duda Energy 9.6 4.6 (264) Buy on Amazon
14 Duda Energy Elemental Sulfur Powder Fertilizer Duda Energy 9.6 4.6 (644) Buy on Amazon
15 Quality Chemical Sodium Hydroxide Caustic Soda Beads Quality Chemical 9.6 4.6 (278) Buy on Amazon
16 Quality Chemical Heavy-Duty Oven and Grill Cleaner Quality Chemical 9.5 4.5 (195) Buy on Amazon
17 Hydrochloric Acid Solution, 2M, 500mL - The Curated Chemical Innovating Science 9.4 4.4 (199) Buy on Amazon
18 Innovating Science Lab-Grade Sodium Hydroxide Pellets Innovating Science 9.4 4.4 (152) Buy on Amazon
19 Sodium Hydroxide (Food Grade) 20 Pounds Belle Chemical 8.9 4.7 (83) Buy on Amazon
20 Sodium Hydroxide 99.9% Pure Food Grade Beads Caustic Soda Ly Florida Laboratories 8.5 4.8 (73) Buy on Amazon
21 Copper Sulfate Crystals 99.8% [Fine Grade] - 10 Lbs. Dibbs Farms 8.3 4.7 (71) Buy on Amazon
22 Dawn Scientific Sodium Hydroxide Caustic Soda Beads Dawn Scientific Inc. 7.6 4.6 (59) Buy on Amazon
23 Innovating Science 0.1M Sodium Hydroxide Solution Innovating Science 7.5 4.5 (59) Buy on Amazon
24 Loudwolf 99% Pure Food Grade Sodium Hydroxide Loudwolf 7.2 4.4 (56) Buy on Amazon
25 Quality Chemical 99% Pure Sodium Hydroxide Beads Quality Chemical 7.1 4.3 (56) Buy on Amazon
26 Loudwolf 99% Pure Food Grade Potassium Hydroxide Loudwolf 6.8 4.5 (46) Buy on Amazon
27 Potassium Hydroxide Flakes KOH Caustic Potash Anhydrous Dry Essential Depot 6.5 4.6 (37) Buy on Amazon
28 950ml Bottle Food Grade Glacial Acetic Acid Concentrated Vin Duda Energy 6.4 4.5 (38) Buy on Amazon
29 45 lb Pail Potassium Hydroxide Meets Food Chemical Codex Hig Duda Diesel 6.4 4.6 (35) Buy on Amazon
30 32 lbs Potassium Hydroxide Flakes KOH Caustic Potash Anhydro ESSENTIAL DEPOT 6.1 4.9 (23) Buy on Amazon