10 Best Flask Round Laboratory In The Us - Black Friday 2024
Best Choice1
PyrexPYREX Round Bottom, Short Neck Boiling Flask- Borosilicate Glass Flask with 24/40 Standard Taper Joint- Premium Chemistry Flask for Laboratory, Classroom, Home Use- Chemistry Glassware, 500mL, 2/Pk
Main highlights- SHORT NECK GLASS FLASK: This laboratory equipment has full length outer 24/40 Standard Taper joints, but with shorter necks. The lab glass flask is finished with a large labelling area.
- SAFE & DURABLE: Offering superior heat, chemical and thermal shock resistance, the lab glassware features controlled wall thickness to balance mechanical strength and thermal expansion.
- PYREX GLASSWARE: PYREX scientific glassware has been a trusted partner for chemists and research scientists in the toughest laboratory environments for more than 100 years.
- LABORATORY FLASK: This round bottom borosilicate glass flask is an ideal short neck boiling flask for use in laboratories, schools, or for home STEM activities and experiments.
- EASY TO CLEAN: The reusable glass scientific flasks are easy to clean and can be sterilized safely in autoclaves at 121°C, making them ideal for repeated use in busy lab environments.
9.8Exceptional
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Value for Money2
stonylab10% OffStonyLab Glass 3 Neck Round Bottom Flask RBF, with 24/40 Center and Side Standard Taper Outer Joint (1L)
Main highlights- Round Bottom Flask
- Made of borosilicate glass
- 3 Angled Neck
- 24/40 Center Joint in the central and double sides
9.7Exceptional
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3
SUCOHANSSUCOHANS 2 Count 4.3" Diam. Lab Flask Support Cork Stand 110mm for 250-2000mL Flasks
Main highlights- Used for holding your flasks or other spherical bottom containers from failing easily.
- The flask support Cork is made of high quality cork, very good elasticity, strong heat and electrical insulation, friction resistance.
- The Flask support is non-toxic, tasteless, small proportion, not easy to get fire,eco-friendly product.
- Flask support firmly holds 250-2000 mL round bottom flasks, and its outer diameter is 110 mm.
- 2pcs 110*60mm Laboratory Flask Cork Stand Lab Supply Article
9.5Excellent
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4
QWORKQWORK 1000ml Glass 2-Neck Round Bottom Flask with 24/40 Center and Side Standard Taper Outer Joint
Main highlights- Standard Taper Outer Joint: Equipped with a 24/40 standard taper outer joint on both the center and side, this flask ensures secure and leak-free connections with compatible lab apparatus, ensuring reliable experiments.
- Generous 1000mL Capacity: With a capacity of 1000mL, this round bottom flask provides ample space for performing experiments, making it ideal for scientific research, chemical reactions, and more.
- Durable Glass Construction: Crafted with precision from high-quality glass material, this heavy wall round bottom flask ensures durability and long-lasting use.
- Dual Neck Design: Featuring two necks, this flask allows for simultaneous and convenient connections to multiple devices or setups, enhancing versatility in various laboratory applications.
- Angled Neck for Easy Handling: The angled neck design of this flask facilitates easy pouring and transfer of liquids, minimizing the risk of spills and offering improved control during laboratory experiments.
9.4Excellent
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5
stonylabStonyLab Glass 100ml Short Neck Round Bottom Flask, Borosilicate Glass Single Neck Heavy Wall Flask RBF with 24/40 Standard Taper Outer Joint - 100ml
Main highlights- StonyLab ensures high quality products and premium customer service
- Single Short Neck with 24/40 joint
- Round Bottom Flask, Short Neck
- Made of Borosilicate glass
- Capacity: 100ml.
9.3Excellent
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6
LABOYLaboy Glass 100mL Single Neck Round Bottom Boiling Flask Heavy Wall with 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware (Pack of 5)
Main highlights- WIDELY USED----The round bottom flask is widely used in organic chemistry,in a or vacuum apparatus ,it’s used a a flask and receiving flask with a glass condenser and some adapters like the 14 way 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 flask in rotary evaporators.
- 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 100mL.Pack of 5pcs
- 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.
- HEAT-resistance DESIGN ---With spherical bottoms,this RBF is more resistance 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.
9.1Excellent
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7
LABOYLaboy Glass Single Neck Flat Bottom Boiling Flask 250mL with 24/40 Joint Heavy Wall Receiving Apparatus Organic Chemistry Lab Glassware (Pack of 4)
Main highlights- 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.
- 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.
- DIMENSIONS-----This flat bottom flask has a capacity of 250mL,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.
- 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.
9.0Excellent
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8
stonylabStonyLab Glass 500ml Heavy Wall 2 Neck Round Bottom Flask RBF, with 19/22 Center and Side Standard Taper Outer Joint - 500mL
Main highlights- Warranty: If received damaged, please contact us immediately; We will solve it until satisfied
- Made of high quality glass
- 500 mL Round Bottom Flask
- 2 Angled Neck
- 19/22 center joint and 19/22 side joint
8.9Very Good
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9
LabasicsLabasics Glass 250ml Single Neck One Neck Round Bottom Flask RBF, with 24/40 Standard Taper Outer Joint, 250ml
Main highlights- Single Neck Round bottomed flask with 24/40 Standard Joint
- Perfect handcraft glass Made by hand-blowing to ensure achieving the best performance
- Made of Borosilicate Glass; maximum withstand temperature 250°C
- Labasics ensures premium customer service; If received damaged, please contact us immediately; We will solve it until satisfied
- Capacity: 250ml
8.6Very Good
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10
XCDXCD Round Bottom Flask with 2 Necks, Borosilicate Glass Round Bottom Flask RBF Heavy Wall 2 Neck Lab Flask with 24/40 Center and Side Standard Taper Outer Joint (500 ml)
Main highlights- XCD two-necked round-bottom flask is a type of laboratory glassware commonly used in chemistry, biochemistry, and pharmaceutical research, as well as in educational settings for experiments and demonstrations
- Two necks serve different purposes; one neck is used to add or remove substances, while the other is used to attach a condenser or other apparatus for distillation or refluxing
- Spherical shape makes it easy to swirl liquids inside and ensures even heating during experiments
- Made of borosilicate glass; resistant to thermal shock and chemical corrosion
- In case you receive a defective or damaged item, please reach out to us; we will assist you until the issue is resolved to your satisfaction
8.4Good
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