Round Bottom Flasks

Specifically shaped for uniform heat distribution, the round bottom flasks are used for distillation, chemical reactions, heating liquid sample, and storage demands. Manufactured from resistant glass, the spherical containers will spread encountered stress evenly across surfaces to prevent fracturing. Built with temperature resistance, the glassware is an essential piece in reflux set-ups. Primarily used for chemical and biochemical research, the round bottom flasks have short or long neck options.

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KIMAX® Round-Bottom Boiling Flasks, Kimble Chase

Supplier: DWK Life Sciences (KIMBLE)

Short neck flasks are designed to ASTM Specification E1403, Class 3 requirements

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SP Wilmad-LabGlass Round Bottom Three Vertical Neck Flasks, SP Industries

Supplier: SP Industries

Available in various sizes, these borosilicate glass round bottom flasks have three vertical necks with Standard Taper outer joints

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PYREX® Round-Bottom Boiling Flasks, Short Ring Neck, Corning

Supplier: Corning

PYREX® borosilicate glass, clear, with short neck.

Sustainable Options Available

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Round-Bottom Four-Neck Flasks, Threaded Neck, Ace Glass

Supplier: Ace Glass

Round-bottom flasks with three [ST] outer joints and #7 Ace-Thred neck

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Flask, Pear Shaped, Single-Neck, Heavy Wall, Ace Glass Incorporated

Supplier: Ace Glass

A pear-shaped distilling flask with a ground or polished outer standard taper joint at top

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Round-Bottom Two-Neck Flasks, with Sidearm Stopcock or Valve, Ace Glass Incorporated

Supplier: Ace Glass

These round-bottom, borosilicate flasks feature two necks and a side port with either a 2 mm glass stopcock or a 0-3 inlet valve

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Round-Bottom Three-Neck Flasks, Vertical Necks, Standard Walls, Ace Glass Incorporated

Supplier: Ace Glass

Round-bottom flasks with three vertical necks and [ST] outer joints

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Round-Bottom Four-Neck Flasks, Thermometer Joint, Ace Glass

Supplier: Ace Glass

Round-bottom flasks with four necks and [ST] outer joints

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Reaction Flask with Flange Top and Bottom Outlet, Ace Glass Incorporated

Supplier: Ace Glass

This is a rugged spherical reaction flask with Duran style flat flange with O-ring groove, for use with Ace Glass quick release clamp. Flasks have capacity reference graduations, and can be configured with one of several different bottom outlets. Each flask is supplied with one CAPFE (PTFE encapsulated silicone) O-ring. Plain silicone o-rings are also available. Easy Action and Piston bottom outlets have size 35/25 O-ring ball joint connection.

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Flask, Round Bottom, Microscale, Ace Glass Incorporated

Supplier: Ace Glass

Microscale, single-neck, round-bottom reaction flask

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Giant Extractor Flasks with Side Neck, Ace Glass

Supplier: Ace Glass

Round bottom flasks designed for use with ACE giant extractor apparatus.

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Scale-Up Series Cylindrical Flasks, Ace Glass

Supplier: Ace Glass

Scale-Up Series cylindrical flasks with an Easy Drain glass valve are graduated on both sides.

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Spherical Reaction Flask, Indented Style, Ace Glass Incorporated

Supplier: Ace Glass

This rugged spherical reaction flask features a Duran style flat flange with O-ring groove, for use with Ace Glass quick release clamp, but with indents for greater agitation. Each flask is supplied with one CAPFE (PTFE encapsulated silicone) O-ring. Plain silicone O-rings are also available. These are not suitable for vacuum or high temperature operation. Fabricated from borosilicate glass.