Round Bottom Flask

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Round Bottom Flask
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  • Boiling, round bottom flasks with ground glass joints. Our boiling flasks are made from low-expansion borosilicate glass. Feature uniform wall thickness for superior mechanical strength and shock resistance. Ideal for boiling, heating and mixing in the laboratory.

  • Round bottom Short ring neck These PYREX® round bottom boiling flasks have short ring necks. These ring neck boiling flasks are precisely tooled for uniform stopper fit. The reinforced rim increases mechanical strength. These flasks are used in applications requiring rigid stoppering…

  • Flask, Single Neck

    Ace Glass

    Round bottom flask with short neck and outer joint. Available in standard and heavy wall. Heavy wall approximately 30% heavier than standard wall. Used by glassblowers in fabricating single or multi-necked flasks.

  • SYNTHWARE round bottom boiling flasks with full length standard taper outer joint. All sizes are heavy wall design and are hand blown from borosilicate tubing to ensure uniform wall thickness.

  • Scienceware® Round Bottom Flask Support

    Bel-Art - SP Scienceware

    Round-bottom flasks of any size up to 10 liters are cradled securely in the stepped concentric rings of this holder. Can be stacked together for convenient storage Polypropylene plastic rack; not affected by spilled acids, alkalis or other corrosive liquids Steam autoclavable at…

  • Oval Stir Bars

    Globe Scientific

    Produced from PTFE For efficient stirring in round bottomed flasks

  • KIMAX boiling flask designed from ASTM Specification E1403, Type II, Class 3 requirements.

  • Two Vertical Neck Round Bottom Flasks

    DWK Life Sciences (Kimble)

    Distilling round bottom flask with two vertical necks. Two-neck heavy wall flask with Standard Taper outer joints on both vertical necks Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

  • KIMAX Joint Boiling Flask

    DWK Life Sciences (Kimble)

    Round bottom Meets ASTM E1403, Type 1, Class 3

  • These 1L PYREX® round bottom boiling flasks have long necks with tooled mouths and take a No. 8 rubber stopper. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for…

  • Manufactured from KIMAX™ borosilicate glass, ValueWare has a low coefficient of expansion and a very high resistance to chemical attack. This means optimal performance in the lab at an affordable price. Long life expectancy, resistant to most chemicals. Ideal for general laboratory use.…

  • SYNTHWARE round bottom, heavy wall, three neck flasks with standard taper outer joints on both the center neck and the angled side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

  • Borosilicate Glass Round Bottom Boiling Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack.

  • Short neck Heavy wall PYREX round bottom boiling flasks have full-length outer Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and…

  • Organic Chemistry Glassware Sets

    United Scientific Supplies

    …Multiple Adaptor Socket (19/26, Cone 24/29), Round Bottom 50ml (Socket 24/29), Erlenmeyer Flask 250ml (Socket 24/29), Stopper (19/26), Thermometer Pocket (14/23). Receiver Adaptor Socket (19/26), Round Bottom 100ml, Socket (24/29), Round Bottom 250ml, Socket (24/29), Stopper (3 each) (24/29).

  • Borosil® Round Bottom Boiling Flasks have uniform wall thickness for even heat distribution. Constructed from stress-free borosilicate. Borosil® Boiling Flasks are heat-resistant. Built to withstand the demands of the modern lab, each flask has a flame-polished, beaded rim for added…

  • Round bottom, heavy wall, pressure rated flask. All flasks come complete with a solid PTFE plug seal with front seal FETFE o-ring for better containment of product. Vessels are tested at 1.5x for a working pressure rating at 60PSI at 120°C. Flasks

  • SYNTHWARE round bottom boiling flasks with spherical socket joint. All sizes are heavy wall design and are hand blown from borosilicate tubing to ensure uniform wall thickness. These flasks can be used as replacements for the collection flask on rotary evaporators.

  • Three Vertical Neck Round Bottom Flasks

    DWK Life Sciences (Kimble)

    Three-neck heavy wall round-bottom flask with Standard Taper outer joints Side necks are vertical Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

  • RounRound Bottom Flask, One Neck, Threaded, Synthware, Capacity: 5, 10, and 25mL, Joint: 14/10, Supplied with one open top compressioncap and one size 014 Viton O-ring and one PTFE-faced septad Bottom Flask, One Neck, Threaded, Synthware, Capacity: 5,

  • Ai 10L heavy wall, 3-neck round bottom flask with 24/40 and 34/45 standard taper joint. Comes with two vertical 34/45 side necks and one 24/40 center neck. Glass material: high borosilicate glass 3.3.

  • PYREX round bottom boiling flasks have full length outer Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are controlled to provide balance between thermal expansion and mechanical strength for greater shock resistance. The round

  • Angled Two Neck Round Bottom Flasks

    DWK Life Sciences (Kimble)

    Two-neck heavy wall flask with Standard Taper outer joints Side neck is angled Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

  • Flask

    Ace Glass

    Round bottom, cylindrical sides. Useful in many Mini-Lab Assemblies. Can also be applied to many other applications in the laboratory where a wide-mouthed flask of small capacity is desired. Available with 45/50 joint polished.

  • Angled Three Neck Round Bottom Flask

    DWK Life Sciences (Kimble)

    Three-neck heavy wall round-bottom flask with Standard Taper outer joints Side necks are angled Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

  • …that greatly simplify cleaning. PFA surface properties offer superior cleanability to glass, PTFE and polypropylene containers, reducing risk of sample carryover in trace analysis applications. Maximum operating temperarture of these PFA round bottom flasks under vacuum is 50°C.

  • SYNTHWARE round bottom single neck reaction flask with a standard taper outer joint and a high vacuum valve sidearm. Useful for sample storage or simple reactions. Valve plug may be removed to sample from the flask while an inert gas purge is passed through the sidearm.

  • These PYREX(r) round bottom boiling flasks have full length outer Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for…

  • SYNTHWARE round bottom, heavy wall, four neck flasks with standard taper outer joints on both the center neck and the angled side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

  • Round Bottom Four-Neck Flasks

    Wilmad-LabGlass - SP Scienceware

    Available in various sizes, these borosilicate glass round bottom flasks have four vertical necks - one center neck and three side necks which are 90° apart. All necks have Standard Taper outer joints.

  • SYNTHWARE round bottom, heavy wall, three neck flasks with standard taper outer joints on both the center neck and the vertical side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

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