614 reviews analysed
1. Laboy Glass 1000mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Distillation Reaction Receiving Flask Organic Chemistry Lab Glassware
Feature
- STANDARD SIZE— This round bottom flask designed with 24/40 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 1000mL.
- 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 14 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.The ground joints are precisely grounded according to US standard.
- BUY WITH CONFIDENCE—-100% 90 DAY MONEY BACK GUARANTEE simply return for a full refund,no question asked
2. Laboratory Vacuum Filtration Distillation Apparatus | 500mL Filtering Flask | 300mL Graduated Funnel Borosilicate Glass | Strong Aluminum Clamp | Lab Suction Apparatus for Filtering
Feature
- LARGE MILLILITER VOLUME: The vacuum filtration apparatus has a large 500mL capacity. The 300mL graduated funnel has 50mL graduations for quick, easy measurement.
- HIGH QUALITY BOROSILICATE GLASS: The distillation apparatus is made from high-quality borosilicate glass that’s strong, durable and heat-resistant. The aluminum clamp has a secure, firm grip adding to the apparatus’ strong, sturdy design.
- COMPATIBLE WITH 50MM PAPER: The lab suction apparatus works great with 50mm membrane filter paper. The pore size is 10μm.
- INCLUDED WITH KIT: The vacuum filtration kit is supplied with a 300mL graduated funnel, 500mL filter flask and sturdy aluminum clamp.
- AMERICAN COMPANY: Fristaden Lab is an American lab equipment company. If you have any problems with or questions about the filtration apparatus, our customer service knows this product well and is ready to help you.
3. Laboy Glass Recovery Flask Rotary Evaporator Flask Heavy Wall 1000mL with 24/40 Joint Distillation Apparatus Organic Chemistry Lab Glassware
Feature
- DESIGN—–Recovery flask,also named evaporation flask,designed with sloping side wall which are balanced to prevent run-out during rotation,with round bottom fitting standard heating mantles,featuring a single neck with standard taper ground glass joint designed for easy recovery of reaction products using a spatula.
- MULTIPURPOSE——The recovery flask can be used for heating, evaporation, and solvent storage or transfer.In a rotary evaporators,it is used as a evaporation flask,it is also can be used in distillation apparatus as a receiving flask, and other experiment for storage or transfer.
- DIMENSIONS—–This pear-shaped recovery flask is with 24/40 standard top joint ,capacity of 1000mL.
- HEAVY WALL —This recovery flask is heavy wall design for vacuum applications , 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.
4. StonyLab Glass 250ml Heavy Wall 2 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint – 250ml
Description
SKU: XL-815122
Why Choose StonyLab?
1. The StonyLab means high-quality products for reasonable prices.
2. We boast excellent customer service with a high satisfaction rating, with our team of representatives ready to assist you Monday to Friday, from 9:30AM to 5:30PM Eastern Time.
3. We pack and ship your orders directly from our US-based warehouse within 24 business hours, and tracking information will be provided to you as soon as it’s available.
The Graduted Cylinder is made of borosilicate glass. It is heavy duty reusable single metric high quality. The package include: StonyLab Glass 2 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint
5. Fristaden Lab Vacuum Filtration Distillation Apparatus | 2000mL Filtering Flask | 300mL Graduated Funnel Borosilicate Glass | Strong Aluminum Clamp | Lab Suction Filtering Flask | 1 Year Warranty
Feature
- PURE SOLUTIONS: The filtering flask can be used to separate components or impurities in your mixtures or solutions. The filtration apparatus is built to last with tough, heat resistant borosilicate glass designed to handle boiling liquids and strong vacuums. The glass is packaged tightly and thoroughly inspected to guarantee you receive an unblemished product.
- LAB QUALITY, MANY USES: Use the 2000mL filtering flask for chemistry experiments in the lab or school
- to make e-juice, concentrate and oils
- to filter essential oils and plant extracts
- to make soap
- and more!
- FAST FILTERING ACTION: The filtering kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. Vacuum filtration allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.
- EASY TO USE: The kit can be set up in minutes and is easy to disassemble, clean and store. The 1000mL filtering flask can handle larger jobs. The 300mL graduate funnel allows for easy measurement, unlike most Buchner funnel apparatuses. Best used with 42-60mm membrane filter paper.
- OUR GUARANTEE: We are Fristaden Lab, an American lab equipment company. Questions about the distillation filtration apparatus? Our customer service knows this product well and is ready to help you.
6. Fristaden Lab Vacuum Filtration Distillation Apparatus | 500mL Filtering Flask | 300mL Graduated Funnel Borosilicate Glass | Strong Aluminum Clamp | Lab Suction Apparatus for Filtering
Feature
- PURE SOLUTIONS: The filtering flask can be used to separate components or impurities in your mixtures or solutions. The filtration apparatus is built to last with tough, heat resistant borosilicate glass designed to handle boiling liquids and strong vacuums. The glass is packaged tightly and thoroughly inspected to guarantee you receive an unblemished product.
- LAB QUALITY, MANY USES: Use the 500mL filtering flask for chemistry experiments in the lab or school
- to make e-juice, concentrate and oils
- to filter essential oils and plant extracts
- to make soap
- and more!
- FAST FILTERING ACTION: The filtering kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. Vacuum filtration allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.
- EASY TO USE: The kit can be set up in minutes and is easy to disassemble, clean and store. The 1000mL filtering flask can handle larger jobs. The 300mL graduate funnel allows for easy measurement, unlike most Buchner funnel apparatuses. Best used with 42-60mm membrane filter paper.
- TRUSTED SELLER: Fristaden Lab is an American lab equipment company. We back the laboratory vacuum filtration apparatus kit with a 30-Day money back guarantee and a 1 Year Warranty.
7. Laboy Glass 250mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Distillation Reaction Receiving Flask Organic Chemistry Lab Glassware (Pack of 5)
Feature
- STANDARD SIZE— This round bottom flask designed with 24/40 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 250mL.Pack of 5pcs
- 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 14 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.The ground joints are precisely grounded according to US standard.
- BUY WITH CONFIDENCE—-100% 90 DAY MONEY BACK GUARANTEE simply return for a full refund,no question asked
Description
Round-bottom flasks (also called round-bottomed flasks, Flasks, round bottom, or RB Flasks)having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Because of the spherical bottom, cork rings are needed to keep the round bottom flasks upright. When in use, round-bottom flasks are commonly held at the neck by flask clamps on a stand. The flasks are usually used in heating or boiling a liquid, in distillation as distilling flasks and receiving flasks for the distillate, used as the distilling flasks in rotary evaporators. 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.
8. StonyLab Glass 1000ml Short Neck Round Bottom Flask, Borosilicate Glass Single Neck Heavy Wall Flask RBF with 24/40 Standard Taper Outer Joint – 1000ml
Description
SKU: XL-815421
Why Choose StonyLab?
1. The StonyLab means high-quality products for reasonable prices.
2. We boast excellent customer service with a high satisfaction rating, with our team of representatives ready to assist you Monday to Friday, from 9:30AM to 5:30PM Eastern Time.
3. We pack and ship your orders directly from our US-based warehouse within 24 business hours, and tracking information will be provided to you as soon as it’s available.
Description
Round Bottom Flask, Short Neck.
Made of Borosilicate glass.
Single Short Neck with 24/40 joint.
Capacity: 1000ml.
StonyLab ensures high quality products and premium customer service.
9. Laboy Glass Single Neck Flat Bottom Boiling Flask 100mL with 24/40 Joint Heavy Wall Distillation Receiving Apparatus Organic Chemistry Lab Glassware (Pack of 8)
Feature
- DESIGN—-The flat bottom flask is likely the round bottom flask but with a flat bottom allowing it standing up flat surface as the flask 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 100mL,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 Chemistry processes like heating and cooling,durable and reusable.
- 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 Chemistry processes like heating and cooling,durable and reusable.
Description
The flat bottom flask is likely the other round bottom flask but with a flat bottom allowing it standing up flat surface as the flask can sit upright on its own. Capacity of 100mL with 24/40 glass ground taper joint. It can be used in heading during distillation, they are not as durable as round bottom flasks for heating better than Erlenmeyer flask which has have the sharp and vulnerable corners .Laboy glass flasks are heavy wall design, made by hand-blowing to ensure uniform wall thickness, and 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.
10. Laboy Glass 1000mL 2 Neck Round Bottom Boiling Flask with 24/40 Center & Side Joints Angled Distillation Apparatus Organic Chemistry Lab Glassware
Feature
- DESIGN—-Round bottom design having spherical bottoms are more resistant to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. A cork stand is needed to keep the round bottom flask upright,or heated by the water bath ,oil bath or sand bath.Comparing to the single neck round bottom flask,this 2 neck flask featured an angled neck with standard taper joint as an extra opening.
- WIDELY USED—The 2 neck round bottom flask is widely used in the organic chemistry process like distillation, reflux ,extraction,reaction etc.In a distillation apparatus,the 2 neck round bottom flask used as the distillation flask,the straight neck attaches 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 1000mL, 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.
Description
This multi-neck flask has two standard taper ground joint on the Centre neck and the side angled neck. With 2 necks having the same joints 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.
Conclusion
By our suggestions above, we hope that you can found 2440 1000Ml Vacuum Flask for you.Please don’t forget to share your experience by comment in this post. Thank you!
