Best Lab Reaction Kettle Flasks in 2026

Designed for long life and maximum safety

Wide mouth, which permits easy access to interior for cleaning

Cover of heavy-pressed construction

DESIGN----This schlenk flask is comprised of a single neck round bottom flask which can be heated directly in an open flame or heating mantle,ideal for reflux reaction in air-sensitive chemistry.With 2mm glass stopcock having a constant pressure retention device.With a standard taper joint on the single neck attaching to lab glassware for adding ,transferring or reflux.

USE----This schlenk flask with glass stopcock is usually used as a reaction flask in air-sensitive chemistry.The 9mm glass stopcock connects to the schlenk line allowing the flask to be evacuated or filled with gases (usually inert gases).The taper joint at top permits easy transfer of liquids or solids,it may attach an addition funnel ,reflux condenser, magnetic stirring shaft, vacuum flow control adapter to assemble a reaction setup.

DIMENSIONS----This round bottom flask is designed with 2mm glass stopccok on side-arm ,with 24/40 standard taper joint,which can be stopped by a glass topper or 14# rubber septum.Capacity of 250mL.

Capacity 2000 ml/2L

3 necks/three 24/40 ground glass joints

Both the reaction lid and the lidless reaction kettle are 15 cm flat flange outer diameter

Made From Borosilicate Glass 3.3

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

APPLICATION-The liquid nitrogen dewar can store semen/embryos/cells/dry ice and etc. For liquid nitrogen, we have tested 3L, 6L, 10L tank under 17 Celsius and their storage time is 35 days, 65 days and 105 days. For dry ice storage, 10L dewar is recommended and it can be stored for about 10 days.

CANISTERS-Each liquid nitrogen container comes with 6 stainless steel canisters, of which 1 without holes for retrieving small amount of N2, 5 with holes for holding samples.

MATERIAL-Made of aeronautical aluminums, the cryogenic container is of high strength and can protect liquid nitrogen and samples.

APPLICATION-The liquid nitrogen dewar can store semen/embryos/cells/dry ice and etc. For liquid nitrogen, we have tested 3L, 6L, 10L tank under 17 Celsius and their storage time is 30 days, 60 days and 100 days. For dry ice storage, 10L dewar is recommended and it can be stored for about 10 days.

CANISTERS-Each liquid nitrogen container comes with 6 stainless steel canisters, of which 1 without holes for retrieving small amount of N2, 5 with holes for holding samples.

MATERIAL-Made of aeronautical aluminums, the cryogenic container is of high strength and can protect liquid nitrogen and samples.

Capacity :5000ml/5L

Power supply:110V / 60HZ .Stirring Power:60W,Stirring Speed:20-600r/min

Stirring rod:the material of stirring rod is PTFE of stainless steel 304

Glass Reactor Flask

Made From Borosilicate Glass 3.3.

Annealing Point ------560℃

Made From G3.3 Borosilicate Glass

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

Made From Borosilicate Glass 3.3

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

Capacity 500 ml

3 necks/three 24/40 ground glass joints

Both the reaction lid and the lidless reaction kettle are 15 cm flat flange outer diameter

Made From Borosilicate Glass 3.3

Annealing Point ------560℃

Linear Coefficient of Expansion------ 32×10-7/℃

Made From Borosilicate Glass 3.3

Annealing Point ------560°C

Linear Coefficient of Expansion------ 32×10-7/°C

Capacity: 1000m/1L

high volume and heavy wall design

150mm Standard flat flange ground glass outside diameter

250mL Three & Four mouths lab Glass Reactor Reaction flask Kettle Chemistry Laboratory Reaction Still Vessel

Spercification

250mL#2424*24 means the reactor is 250mL , the cap with three mouths of #24.

DESIGN----This schlenk flask is comprised of a two neck round bottom flask which can be heated directly in an open flame or heating mantle,ideal for reflux reaction in air-sensitive chemistry.With 2mm glass stopcock having a constant pressure retention device.With a standard taper joint on the single neck attaching to lab glassware for adding ,transferring or reflux.

USE----This schlenk flask with glass stopcock is usually used as a reaction flask in air-sensitive chemistry.The 3mm glass stopcock connects to the schlenk line allowing the flask to be evacuated or filled with gases (usually inert gases).The taper joint at top permits easy transfer of liquids or solids,it may attach an addition funnel ,reflux condenser, magnetic stirring shaft, vacuum flow control adapter to assemble a reaction setup.

DIMENSIONS----This round bottom flask is designed with 2mm glass stopccok on side-arm ,with 14/20 standard taper joints,which can be stopped by a glass topper or 14# rubber septum.Capacity of 50mL.

DESIGN----This schlenk flask is comprised of a two neck round bottom flask which can be heated directly in an open flame or heating mantle,ideal for reflux reaction in air-sensitive chemistry.With 2mm glass stopcock having a constant pressure retention device.With a standard taper joint on the single neck attaching to lab glassware for adding ,transferring or reflux.

USE----This schlenk flask with glass stopcock is usually used as a reaction flask in air-sensitive chemistry.The 6mm glass stopcock connects to the schlenk line allowing the flask to be evacuated or filled with gases (usually inert gases).The taper joint at top permits easy transfer of liquids or solids,it may attach an addition funnel ,reflux condenser, magnetic stirring shaft, vacuum flow control adapter to assemble a reaction setup.

DIMENSIONS----This round bottom flask is designed with 2mm glass stopccok on side-arm ,with 24/40 standard taper joints,which can be stopped by a glass topper or 14# rubber septum.Capacity of 250mL.

APPLICATION-The liquid nitrogen dewar can store semen/embryos/cells/dry ice and etc. For liquid nitrogen, we have tested 3L, 6L, 10L tank under 17 Celsius and their storage time is 35 days, 65 days and 105 days. For dry ice storage, 10L dewar is recommended and it can be stored for about 10 days.

CANISTERS-Each liquid nitrogen container comes with 6 stainless steel canisters, of which 1 without holes for retrieving small amount of N2, 5 with holes for holding samples.

MATERIAL-Made of aeronautical aluminums, the cryogenic container is of high strength and can protect liquid nitrogen and samples.