Best 350ml Vacuum Flask

Laboy Glass 1000mL Pear-Shaped Schlenk Flask Tube Kjeldahl-Style Reaction Storage Air-Free with High Vacuum Valve & 24/40 Joint Lab Glassware

DESIGN----This Kjeldahl shape schlenk flask consists of a pear-shaped flask facilitates heating and stirring.It has a sidearm fitted with high vacuum valve connecting to a vacuum or inert gases source.The top ground glass joint is used to attach the flask to other lab glassware apparatus ,or stopped by a penney head stopper,rubber septum,permitting easy transfer of liquids or solids..
USE----Schlenk flasks are indispensable laboratory glassware used in air-sensitive chemistry to conduct air-sensitive reaction.Comparing to non-air-sensitive reactions reaction, this schlenk flask features a 0-12mm high vacuum valve connecting with a schlenk line and controlling the access to inert gas or vacuum. In a reaction setup,the schlenk flask may use with an addition funnel,reflux condenser,magnetic stirring shaft and bars.For filtration,a schlent frit is required..
DIMENSIONS----This pear-shaped schlenk flask,modified schlenk tube, capacity of 1000mL,with 0-4mm high vacuum valve which is easier to clean and won't leach grease into your reaction mixture.With 24/40 top taper outer joint allowing material to be added to a flask or attaching a reflux condenser for reaction..
HEAVY WALL ---This schlenk flask is heavy-wall designed , made by hand-blowing according to AS....

250ml Reaction Flask with 0-4mm High Vacuum Valve & 24/40 Joint.
Schlenk reaction flask for vacuum and no-air applications.
Made of borosilicate glass, heavy wall designed, the schlenk reation flask has the advantages of low coefficient of thermal expansion, high strength, uniform wall thinckness, high transparence, high temperature resistance.
Professional for chemical laboratories, high quality materials, fine workmanship, making chemical experiments more perfect.
If received damaged, please don't hesitate to contact us, we will solve it until satisfied.

-【Specifications】Capacity of 50ml, storage tube outer diameter×height 28×140mm.
-【Material】Made of high borosilicate glass, it has the advantages of light weight, low thermal expansion coefficient, strong thermal shock resistance, can withstand 450 ° C high temperature for a long time, clear and transparent, uniform quality, widely used in optics, optoelectronics, photonics and Analysis equipment and other fields..
-【Suitable for】Schlenk flask is an indispensable laboratory glassware for reaction to air-sensitive chemical reactions. Compared with non-air-sensitive reactions, the schlenk flask has a 0-4mm high vacuum valve, which is connected to the schlenk line and controls the channel inert gas or vacuum..
-【Uniform wall thickness, durable】Low expansion rate, uniform wall thickness, strong and durable. High vacuum valve on top, can be evacuated or filled with gas..
-【Various models】We also provide a variety of other types of schlenk flask to meet your different needs..

-【Specifications】Capacity of 10ml, storage tube outer diameter×height 22×55mm.
-【Material】Made of high borosilicate glass, it has the advantages of light weight, low thermal expansion coefficient, strong thermal shock resistance, can withstand 450 ° C high temperature for a long time, clear and transparent, uniform quality, widely used in optics, optoelectronics, photonics and Analysis equipment and other fields..
-【Suitable for】Schlenk flask is an indispensable laboratory glassware for reaction to air-sensitive chemical reactions. Compared with non-air-sensitive reactions, the schlenk flask has a 0-4mm high vacuum valve, which is connected to the schlenk line and controls the channel inert gas or vacuum..
-【Uniform wall thickness, durable】Low expansion rate, uniform wall thickness, strong and durable. High vacuum valve on top, can be evacuated or filled with gas..
-【Various models】We also provide a variety of other types of schlenk flask to meet your different needs..

... flask designed with 14/20 standard taper outer joint,interchangeable,leak-free,comparing to common boiling flask without ground joint, it is convenient,safe,easy-operation in laboratory glassware setup.Capacity of 100mL..
HEAT-RESISTANT DESIGN ---With spherical bottoms,this RBF is more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Laboy glass flasks are heavy wall designed,made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling..
WIDELY USED----The round bottom flask is widely used in organic chemistry,in a distillation or vacuum distillation apparatus ,it’s used a a distillation flask and receiving flask with a glass condenser and some adapters like the 10 way distillation adapter,take-off adapter.
In a reflux process,it’s used as a reaction flask with a reflux condenser.It is also used as a Distilling flask in rotary evaporators..
HIGH QUALITY---Laboy glass condensers are all made of high quality boroslicate glass according to ASTM E438,heavy wall design,durable and reusable.Th....

Premium Quality: Made of high-quality borosilicate glass, heavy glass wall, durable and reusable..
Standard Size: The round-bottom flask features the 24/40 standard taper outer joint, interchangeable and leak-free. The capacity of 500ml..
Heat-Resistant: With the round bottom, the boiling flask is more resistant to breaking under vacuum, as a sphere can evenly distribute stress across its surface. Heavy glass wall, made by hand-blowing to ensure even wall thickness, made of high-quality borosilicate glass and annealed at 800 degrees Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling..
Wide Application: The round bottom flask is widely used in organic chemistry, in distillation, or vacuum distillation apparatus..
Satisfaction Guaranteed: If you're not completely satisfied with our product, you will get 100% complete refund in one month..