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The Best Lab Boiling Flasks

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Discover now our comparison of the best Lab Boiling Flasks. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Lab Boiling Flasks are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Lab Boiling Flasks in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
QWORK Boiling Flask, Single Neck Round Bottom, 24/40 Standard Taper Outer Joint, 1000ml
  • 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 1000ml.
  • 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.
No. 2
Eisco Labs - 2000 mL Flat Bottom Boiling Flask with 24/40 Ground Joint, Borosilicate Glass, Ideal for Distillation, Reflux, Chemical Reactions & Solvent Recovery in Lab and Industrial Settings
  • LARGE CAPACITY FLASK || 2000 mL flat-bottom boiling flask ideal for handling large volumes during distillation, extraction, and chemical reactions
  • 24/40 GROUND JOINT || Standard 24/40 ground joint ensures secure connections with condensers, adapters, and other lab apparatus
  • BOROSILICATE GLASS || Constructed from heat and chemical-resistant borosilicate glass, perfect for high-temperature reactions and distillation
  • STABLE FLAT BOTTOM DESIGN || The flat bottom provides stability on hot plates or other heating devices, eliminating the need for additional supports
  • MULTIPURPOSE USE || Suitable for distillation, reflux, solvent recovery, chemical synthesis, and large-scale reaction setups
No. 3
Labvida 2pcs of Glass Boiling Flasks of Flat Bottom, Vol.500ml, Borosilicate 3.3 Glass, LVD002
  • Volume: 500ml (17oz)
  • Material: Made of high quality 3.3 Borosilicate glass to prevent cracking
  • Appearance: Flat Bottom that can be set on a surface, short neck, without graduation
  • Shape: Geometry permits very uniform heating, Uniform wall thickness is suited for heating
  • Boiling Flask is used in laboratory for more prolonged boiling of liquids
SaleNo. 4
1000ml Boiling Flask, 3.3 Boro. Glass, Flat Bottom, Karter Scientific 250C4 (Single)
  • Capacity: 1000ml
  • Height: 197mm
  • Outside Diameter: 127mm
  • 3.3 Borosilicate Glass
  • Long Neck
No. 5
stonylab Flat Bottom Flask FBF, Heavy Wall 2-Neck Lab Flask Borosilicate Glass Flat Bottom Boiling Flask with 24/40 Standard Joint, 2000 ml (2 L)
  • Versatile Functionality: 2-neck flat-bottom flask is indispensable in chemical experiments, designed to enhance the ease of adding reactants and measuring temperatures during various reactions
  • Diverse Capacity and Standardization: Available in 50/100/250/500/1000/2000 ml, each flask is equipped with 2 standard 24/40 joint, catering to a variety of experimental needs
  • Superior Craftsmanship: crafted with meticulous attention to detail, these flasks boast a smooth surface, high transparency, and are free from imperfections like bubbles, ensuring precision in every experiment
  • Robust Material: constructed from high borosilicate glass, these flasks are not only resistant to acids and alkalis but also offer excellent corrosion resistance; their durable nature allows for repeated reuse, making them a sustainable choice for ongoing research and experimentation; maximum withstand temperature 200°C
  • Warranty: StonyLab 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied
No. 6
EISCO Boiling Flask, 50ml - Borosilicate Glass - Flat Bottom, Narrow Neck
  • Flask made of heavy duty borosilicate glass.
  • 50ml Capacity
  • Long neck
  • Stopper not included
No. 7
TN Lab Flat Bottom Boiling Flask 4-Piece Set 50-100-250-500ml
  • 50ml, 100ml, 250ml, 500ml Glass Boiling Flasks with Flat Bottom made from Borosilicate in the Florence flask shape.
  • Heavy-Wall Borosilicate 3.3 Glass
  • Designed with a narrow neck, making it easier to swirl liquids without spilling
  • Manufactured to ISO: 9001 Standards, CE Certification
No. 9
QWORK 1000ml Borosilicate Glass Boiling Flask with 24/40 Standard Taper Outer Joint, Single Neck Flat Bottom, 2 Pack
  • Premium Quality: Made of high-quality borosilicate glass, heavy glass wall, durable and reusable.
  • Standard Size: The flask features the 24/40 standard taper outer joint, interchangeable and leak-free.
  • 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.
  • Wide Application: The flask is widely used in organic chemistry, in distillation, or vacuum distillation apparatus.
No. 10
EISCO Boiling Flask, 100ml - Borosilicate Glass - Round Bottom, Narrow Neck (0.85" ID)
  • The opening of the flask is 0.85". The base diameter of the flask is 2.5" and the overall height is 4.4". The stem is 1" diameter and 2.1" long. Please note: these are hand blown with the capacity in mind and overall dimensions can vary a bit piece to piece.
  • Hand blown premium borosilicate 3.3 glass with 100mL capacity.
  • The round bottom is designed for use with boiling or other similar tasks. A stand set like LABSTANDSET can be used in conjunction with this set.
  • Note: the images are for illustrations only - the item can not sit flat on a table because it is round on the bottom.
  • Top rack dishwasher safe.

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Last update on 2025-05-20 / Affiliate links / Images from Amazon Product Advertising API