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Best Glassware 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....
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Laboy Glass Single Neck Flat Bottom Boiling Flask 2000mL with 24/40 Joint Heavy Wall Receiving Apparatus Organic Chemistry Lab Glassware

  • ...sk can sit upright on its own,rather than in a flask clamp or cork stand,ideal for using as a receiving flask.When under heating,it is not durable as round bottom flask but better than Erlenmeyer flask which have the sharp and vulnerable corners.The short neck is with a standard taper joint,which can attach the lab glassware with standard tape joint..
  • WIDELY USED-----A flat bottom flask is used in chemistry laboratory for experiments involving collecting and measuring liquids, mixing solvent In a apparatus,the flat bottom flasks can attach to a adapter,liebig or allhnn condenser,take off adapter as a or receiving flask.In a soxhlet extraction, a flat bottom attaches the soxhlet extractor used as boiling and receiving flask..
  • DIMENSIONS-----This flat bottom flask has a capacity of 2000mL,the short neck is with a 24/40 standard taper female joint, which is interchangeable ,can be attached to any jointed glassware with a 24/40 male joint..
  • HEAVY WALL ---Laboy glass flasks are heavy wall design , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heate....
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Laboy Glass Single Neck Flat Bottom Boiling Flask 1000mL with 24/40 Joint Heavy Wall Distillation Receiving Apparatus Organic Chemistry Lab Glassware

  • ...sk can sit upright on its own,rather than in a flask clamp or cork stand,ideal for using as a receiving flask.When under heating,it is not durable as round bottom flask but better than Erlenmeyer flask which have the sharp and vulnerable corners.The short neck is with a standard taper joint,which can attach the lab glassware with standard tape joint..
  • WIDELY USED-----A flat bottom flask is used in chemistry laboratory for experiments involving collecting and measuring liquids, mixing solvent In a distillation apparatus,the flat bottom flasks can attach to a distillation adapter,liebig or allhnn condenser,take off adapter as a distillation or receiving flask.In a soxhlet extraction, a flat bottom attaches the soxhlet extractor used as boiling and receiving flask..
  • DIMENSIONS-----This flat bottom flask has a capacity of 1000mL,the short neck is with a 24/40 standard taper female joint, which is interchangeable ,can be attached to any jointed glassware with a 24/40 male joint..
  • HEAVY WALL ---Laboy glass flasks are heavy wall design , made by hand-blowing according to ASTM E438 ,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 Chemis....
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Laboy Glass Revised Simple Apparatus Kit Set with 24/40 Joints Organic Chemistry Lab Glassware Equipment Lab Clamps Included

  • The glassware parts includes 1000mL,500mL round bottom flasks,250mm erlenmeyer flask and receiving flasks,liebig condenser,3 way thermometer adapter, vacuum take off adapter,All the glassware are with 24/40 standard taper joints..
  • the kit also includes flask clamps,bosshead clamp,rubber tubings,plastic joint clip.
  • Laboy glassware are all made of high quality boroslicate glass according to ASTM E438,heavy wall design.The ground joints are precisely grounded according to US standard..
  • 100% 90 DAY MONEY BACK GUARANTEE simply return for a full refund,no question asked.
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Laboy Glass 2000mL 2 Neck Round Bottom Boiling Flask with 24/40 Center & Side Joint Angled Distillation Apparatus Organic Chemistry Lab Glassware

  • ...aches a 3 way distillation adapter or a distillation column(in fractional distillation),the other neck can be used to connect a thermometer adapter ,bleeding tube, or additional funnel..
  • DIMENSIONS-----This 2 neck round bottom flask has capacity of 2000mL, with 24/40 center joint & 24/40 side joint,attaching any lab glassware apparatus with standard taper joint..
  • HEAVY WALL ---The 2 neck flask is heavy-wall designed , made by hand-blowing according to ASTM E438 ,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,durable and reusable..
  • 100% 90 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.Please also kindly undertand glassware is fragile, even if we pack them carefully,it may be broken during the shipment ,if you receive the items in broken status,don't hesitate to contact us ,we will arrange free replacement or full refund..
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Laboy Glass Steam Distillation Apparatus Kit Distilling Set with Biomass Flask Essential Oil Extraction Maker Organic Chemistry Lab Glassware Equipment 25pcs

  • ...er is applied due to the other entry for adding extra water to the system without stopping distillation using a separatory funnel as an additional funnel,which can be replaced by a pressure equalizing funnel or a simple powder funnel.And there is only water in the distilling flask to be heated to produce steam..
  • The glassware parts in this kit are all with 24/40 standard taper joints for a safe and convenient seal,which includes two separatory funnels used for adding water and separation,A 500mL round bottom flask,a 500mL flat bottom flask,a claisen adapter,a biomass flask, a 3 way distillation adapter, a penny head stopper,a liebig condenser ,a 105 bent distillation adapter,16ft rubber tubing, 10pcs joint clips,a cork stand..
  • Laboy glassware are all made of high quality boroslicate glass according to ASTM E438,heavy wall design,durable and reusable.The ground joints are precisely grounded according to US standard..
  • 100% 90 DAY MONEY BACK GUARANTEE simply return for a full refund,no question asked.
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Laboy Glass 100mL Single Neck Round Botthom Schlenk Flask Reaction Kettle with 24/40 Joint & Glass Stopcock Air-Free at Side Arm Chemistry Lab Glassware

  • ...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 7mm 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 100mL..
  • HEAVY WALL ---This schlenk flask is heavy-wall designed , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 806 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal varia....
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QWORK 250ml Single Neck Flat Bottom Boiling Flask with 24/40 Standard Joint, 2 Packs Heavy Wall Distillation Receiving Apparatus, Taper Outer Joint Lab Glassware

  • Package contains: 2 Pack 250ml Single Neck Flat bottomed flask..
  • Standard size: With 24/40 Standard Taper Outer Joint, capacity is 250ml..
  • Widely used: Can be connected to a distillation adapter for collecting and measuring liquids..
  • Durable: Made of high-quality borosilicate glass, it can be directly heated in an open flame, high temperature and low temperature resistance, and can be reused..
  • Flat-bottomed flask: The flask can stand upright on a flat surface by itself, rather than on a flask holder or cork holder. Can be connected to laboratory glassware, with standard tape joints..
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QWORK Glass 500ml Single Neck Flat Bottom Boiling Flask, with 24/40 Standard Joint, Heavy Wall Distillation Receiving Apparatus, Taper Outer Joint Lab Glassware, 500mL

  • Package contains: 1 Pack 500ml Single Neck Flat bottomed flask..
  • Standard size: With 24/40 Standard Taper Outer Joint, capacity is 500ml..
  • Widely used: Can be connected to a distillation adapter for collecting and measuring liquids..
  • Durable: Made of high-quality borosilicate glass, it can be directly heated in an open flame, high temperature and low temperature resistance, and can be reused..
  • Flat-bottomed flask: The flask can stand upright on a flat surface by itself, rather than on a flask holder or cork holder. Can be connected to laboratory glassware, with standard tape joints..
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DADAKEWIN 500ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 29# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 500ml/29#)

  • Package include: a 500ml Lab Reaction Flask with 29# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock 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..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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DADAKEWIN 150ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 19# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 150ml/19#)

  • Package include: a 150ml Lab Reaction Flask with 19# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock 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..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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DADAKEWIN 100ml Reaction Flask Kjeldahl Reaction Ball-Shaped Borosilicate 3.3 Glass with 24# Joint, PTEF Stopcock Customizable Lab Flasks Glassware (Size : 100ml/24#)

  • Package include: a 100ml Lab Reaction Flask with 24# Joint, PTEF Stopcock and Long single neck.
  • Premium Materials: Reaction Flask is made from Borosilicate 3.3 Glass materials, which has a very low coefficient of thermal expansion, about one-third of ordinary glass. Resistant to high temperature and Resistant to 200 ° C temperature change..
  • This Reaction Flask consists of a tube flask facilitates heating and stirring. It has a sidearm fitted with a PTFE stopcock 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..
  • Each flask is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments..
  • Great for Professional Laboratories, Classrooms & Household.
  • Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use..
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Laboy Glass 100mL Single Neck Round Bottom Boiling Flask Heavy Wall with 14/20 Joint Heating Distillation Reaction Receiving Flask Organic Chemistry Lab Glassware

  • STANDARD SIZE--- This round bottom 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 w....
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