Erlenmeyer Flasks

Erlenmeyer flasks carry a distinctive conical shape and narrow neck and are suitable for various laboratory applications, including mixing, storing, and dissolving solid and liquid substances.

Erlenmeyer flasks carry sterile properties to reduce the risk of cross-contamination between sample types. Erlenmeyer filter flasks offer disposable options with marked graduations. Baffled Erlenmeyer flasks are suitable for shaker culture applications. Models available from Thomas Scientific include vent cap options for applications requiring a sterile gas exchange. Find baffled Erlenmeyer flask, Erlenmeyer filter flask, and side arm flasks to accommodate a range of applications. Manufactured of the highest quality materials, including polymethyl pentene (PMP) and polypropylene (PP), Erlenmeyer flasks are an excellent break-resistant alternative to using glass flasks.

Multiple sizes, including marked graduations such as 15mL or 50mL for easy measuring solutions, are available. Baffled flasks are individually packaged for easy storage and handling within the lab.

Also see our range of beakers and cell counters available at Thomas Scientific.

Erlenmeyer Flasks

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  • Glass Wide Mouth Erlenmeyer Flasks

    Borosilicate Glass Wide Mouth Erlenmeyer Flasks are designed for durability and feature a wide opening for use with larger rubber stoppers. Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical strength. Feature heavy-duty rims and graduations...

  • Heavy Duty Glass Erlenmeyer Flasks

    Thomas Scientific™ Heavy Duty Borosilicate Glass Narrow Mouth Erlenmeyer Flasks are designed for durability and feature significantly thicker walls than standard Erlenmeyer Flasks. Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical...

  • Flasks, Erlenmeyer, Outer Joints

    Erlenmeyer flask with a standard taper outer joint. For stoppers see CG-3000. This set of Erlenmeyer flasks is designed with outer joints, offering a practical solution for a wide range of experimental procedures. The flasks' unique design includes a broad flat base for stability and a narrow...

  • Glass Erlenmeyer Flasks

    Borosilicate Glass Narrow Mouth Erlenmeyer Flasks are designed for durability and long lasting performance and use in the lab. Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical strength. Feature heavy-duty rims and graduations in durable...

  • PYREX Heavy-Duty Graduated Erlenmeyer Flasks

    Heavy-duty rim for longer service Narrow mouth Graduated scale indicates approximate volume The Erlenmeyer design is extremely popular and has been modified for numerous lab applications.

  • PYREX Graduated Erlenmeyer Flasks, Wide Mouths

    These PYREX® wide mouth Erlenmeyer flasks are especially recommended for use as titration flasks and are designed with heavy duty rims to reduce chipping. For convenience, these flasks are graduated in durable white enamel to show the approximate capacity and have an extra large marking...

  • Wide Neck Glass Erlenmeyer Flasks

    Made of high quality borosilicate 3.3 glass Wide neck for easy filling Conforms with DIN ISO 24450 standards for flasks Wide neck conical flask with white graduations. Made of high quality borosilicate 3.3 glass. Autoclavable, with superior chemical durability. Low temperature gradient- can...

  • DeLong Neck Erlenmeyer Flask Only,4L

    DeLong culture flask without closure Stainless steel or kap-uts disposable closures purchased seperately Borosilicate glass Type 1, Class A Graduated to approximate volumes

  • Borosil® Narrow Mouth Glass Erlenmeyer Flasks

    Borosil® Erlenmeyer Flasks have uniform wall thickness, perfect for evenly distributed heat. The classic conical shape promotes effective mixing. Beaded rims confer durability and crack resistance. Graduations and marking spot further improve the functionality of these essential lab tools....

  • Flask, Erlenmeyer, Globe Glass

    Globe Glass™ Erlenmeyer flasks meet ASTM E1404 specifications for narrow mouth, wide mouth and screw cap options and are available in a wide range of sizes.  Wide mouth conical flasks allow easy access to contents, while screw cap conical flasks include a GL45 cap with a PTFE liner for a...

  • PYREX® Graduated Erlenmeyer Flasks With Screw Caps

    These PYREX® Erlenmeyer flasks with phenolic screw caps are ideal for use as a shaker flask or for mixing, media prep and storage needs. Impact resistant caps with 24-410 GPI threads are equipped with cemented-in, inert white rubber liners which are resistant to steam sterilization. Their...

  • Glassblowers Flask Blanks, Erlenmeyer

    Blanks for fabrication of Erlenmeyer shaped flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.

  • Flasks, Erlenmeyer, Screw Caps

    Erlenmeyer flask with screw thread finish. Supplied complete with white rubber lined black phenolic cap. Long skirted caps can be loosened without falling off while shaking flask.

  • Glass Erlenmeyer Flasks

    Single Erlenmeyer Flasks with narrow necks Made of high quality, heavy duty, borosilicate 3.3 glass with superior durability and heat tolerance Features uniform wall thickness ideal for heating and a reinforced rim for protection against high impacts Easy-to-read white enamel graduations Conforms...

  • Flask, Erlenmeyer, Heavy Wall

    Erlenmeyer flask, heavy wall, with a standard taper joint. Ideal for rigorous laboratory applications, this Heavy Wall Erlenmeyer Flask is designed to withstand intense heat and repeated use. Its superior construction offers enhanced durability, making it a reliable choice for scientific experiments...

  • KIMAX Flasks - Wide Mouth Erlenmeyer Flask

    KIMAX flask product features include: Wide mouth, with heavy-duty, tooled top finish and scale to indicate approximate volumes ASTM Specification E 1404 Type I Class 2 The 125 mL flask takes No. 6 rubber stopper; 250 mL flask, No. 8; 500 mL flask, No. 10; 1,000 mL flask, No. 11; 2,000 mL flask, No....

  • Wide Mouth Erlenmeyer Flasks

    United Scientific Supplies

    Borosilicate Glass Erlenmeyer Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack, Wide Mouth.

  • 45mm Erlenmeyer Flask, 6000mL Graduated w/ Screw Cap

    Manufactured from Type 1, Class A, Borosilicate and ideal for all culture and media preparation/storage purposes Supplied with GL45 blue polypropylene linerless screw caps and pouring rings and graduated to approximate volumes

  • Erlenmeyer Flasks

    GSC International, Inc.

    These borosilicate glass Erlenmeyer flasks have narrow mouths, tooled top finishes, and graduations. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more...

  • SYNTHWARE Erlenmeyer Flasks

    SYNTHWARE Erlenmeyer flask with standard taper outer joint. All sizes are hand blown from tubing to ensure heavy and uniform wall.

  • Erlenmeyer Flasks

    Carolina Components Group

    FlowTainer™ Erlenmeyer flasks are the optimal choice for ease of use and versatility in your cell culture and microbial fermentation workflows. Available in various sizes, our disposable culture flasks offer exceptional gas exchange properties for optimal cell growth. FlowTainer™...

  • labForce® Polycarbonate Erlenmeyer Shaker Flasks

    labForce® (powered by Thomas Scientific)

    labForce® Erlenmeyer Shaker Flasks are made of polycarbonate to support many culturing techniques and storing of culture media. The flask material is durable, shatter resistant and lightweight compared to glass flasks. Polycarbonate Flasks are autoclavable at 121°C and 15PSI for 30 minutes....

  • labForce® Jumbo Styrene Butadiene Erlenmeyer Shaker Flasks

    labForce® (powered by Thomas Scientific)

    labForce® Jumbo Erlenmeyer/Fernbach Shaker Flasks are made of Styrene Butadiene to support many culturing techniques and storing of culture media. The flask material is durable, shatter resistant and lightweight compared to glass flasks. Caps sold separately.   Styrene Butadiene Baffled...

  • labForce® PETG Erlenmeyer Shaker Flasks

    labForce® (powered by Thomas Scientific)

    labForce® PETG Erlenmeyer Shaker Flasks are designed for suspension of cell culture, media prep, mixing and storage. The flask material is durable, shatter resistant and lightweight compared to glass flasks. Polycarbonate options available. Caps sold separately.   Polyethylene Terephthalate...

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What is the Erlenmeyer flask used for?

The Erlenmeyer flask is a versatile laboratory vessel for mixing, heating, and storing liquids. Its conical shape minimizes spillage and splashing during mixing, making it ideal for tasks like titrations, preparing solutions, or culturing microorganisms. The narrow neck reduces evaporation and allows stoppers for secure containment, while its broad base ensures stability on lab surfaces. Scientists and researchers use Erlenmeyer flasks in chemistry, biology, and microbiology for both small-scale experiments and large-scale media preparation.

What is the function of a filter flask in chemistry?

A filter flask, also known as a Buchner flask or vacuum flask, is used in chemistry to facilitate filtration processes under reduced pressure. Its thick-walled design withstands the vacuum created when connected to a vacuum pump or aspirator. When used with a Buchner funnel and filter paper, the sidearm outlet allows air to draw out, speeding up the filtration process. Filter flasks separate solids from liquids, purify samples, or dry precipitates in analytical and preparative chemistry.