Boiling Flasks, Flasks, Supplies
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PYREX Boiling Flasks
CorningCarefully designed and manufactured from borosilicate glass Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance Excellent chemical durability provides contamination-free results and long life…
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Florence Boiling Flasks
EiscoMade of high quality, heavy duty Borosilicate glass Narrow neck, flat bottom, beaded rim. Perfect for any science or home laboratory Florence boiling flask made out of high quality, heavy duty borosilicate glass. Narrow neck, beaded rim and flat bottom. No stopper included. …
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Pear Shaped Boiling Flasks
DWK Life Sciences (Kimble)Single-neck flask with a Standard Taper outer joint at top Heavy wall Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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ValueWare® Flat Bottom Flasks, Short Neck, Full-Length
DWK Life Sciences (Kimble)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.…
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SYNTHWARE Round Bottom Angled Three Neck Flasks
Kemtech AmericaSYNTHWARE 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.
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Round bottom, HEAVY WALL flask with standard taper outer joint. Side tubulation accepts a CG-1040 rubber fitment for insertion of thermometers or bleed tubes. Supplied complete with one CG-1040 rubber fitting.
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SYNTHWARE Round Bottom Flasks with Threaded Side Inlets
Kemtech AmericaSYNTHWARE round bottom, heavy wall, flask with standard taper outer joint and threaded side port. All sizes are hand blown from tubing to ensure uniform wall thickness. Side port is for insertion of thermometer or bleed tube having an O.D. between 5mm and 7.5mm.
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Flask, Single Neck
Ace GlassRound 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.
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Round bottom flask with four necks arranged 3 in-line and one #7 Ace-Thred neck (ideal for suspending a thermometer or probe) at 90 degrees. The 500ml and 250ml sizes have angled side necks while the larger sizes feature vertical necks. Available in he
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Florence Boiling Flasks
EiscoMade of high quality, heavy duty borosilicate glass Narrow neck, flat bottom, beaded rim Perfect for any science or home laboratory Florence boiling flask made out of high quality, heavy duty borosilicate glass. Narrow neck, beaded rim and flat bottom. No stopper included. Autoclavable, with…
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Single Neck Flat Bottom Flasks
ChemglassSingle neck, flat bottom flask with a standard taper outer joint.
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Boiling Flasks
GSC International, Inc.These quality round bottom boiling flasks are made from heat-resistant borosilicate glass, and have 24/40 ground glass joints and thick walls. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer,…
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ValueWare® Flat Bottom Flasks, Florence, Reinforced Beaded Top
DWK Life Sciences (Kimble)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.…
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Borosil® Flat Bottom Boiling Flasks have uniform wall thickness for even heat distribution. Flasks are stress free giving them mechanical strength as well as thermal shock resistance. Borosil® Boiling Flasks are heat-resistant. Built to withstand the demands of the modern lab, each flask…
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Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Please note: There are separate listings for different capacity single neck round bottom flasks.
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Flask, Single Neck, Spherical, Receiving
Ace GlassWith short neck and outer joint. Available in standard and heavy wall. Heavy wall approximately 30% heavier than standard wall.
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Flask, Round Bottom, Four Neck
Ace GlassRound bottom flask with four necks arranged 3 in-line and one at 90 degrees. The three side necks are angled.
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Flasks, Quartz, Flat Bottom, Single Neck
ChemglassSingle neck, flat bottom, quartz flask with standard taper outer joint.
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Round bottom flask with five necks arranged 3 in-line, two 90 degrees front and back of in-line necks. All necks are vertical. Available in heavy wall.
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Flask, Boiling, Round Bottom, 250ml
DWK Life Sciences (Kimble)KIMAX® round-bottomed boiling flask Reinforced tooled top Designed from ASTM Specification E1403, Type II, Class I, requirements Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements
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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…
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Round bottom, single neck flask with stopcock septum port side arm for use with air-sensitive material. Features a PTFE, 2mm bore stopcock. Available in standard wall and heavy wall versions. All flasks supplied with a 9096-32 septum.
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ValueWare® Round Bottom Flasks, Short Neck, Full-Length
DWK Life Sciences (Kimble)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.…
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Flask, Round Bottom, Septum Port
Ace GlassRound bottom, single neck flask with septum port for use with air-sensitive material. Available in standard wall and heavy wall versions. All flasks supplied with a 9096-32 septum.
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SYNTHWARE round bottom, heavy wall, four 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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SYNTHWARE Round Bottom Angled Four Neck Flasks
Kemtech AmericaSYNTHWARE 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.
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Flask, Round Bottom, Three Neck
Ace GlassRound bottom flasks, three vertical necks, standard taper outer joints, standard and heavy wall. Flasks feature a flare-out directly below the center joint to facilitate cleaning and removal of stir blades.
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Round bottom, HEAVY WALL flask with a standard taper outer joint and a #7 Chem-Thread as a side neck for insertion of thermometers or bleed tubes having an O.D. between 4 and 7mm.
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Heavy wall, wide mouth flask with a GL80 glass thread and a 24/40 connecting adapter. Flasks have a heavy wall for vacuum applications and are balanced to prevent run-out during rotation. Unique design makes it easier to handle highly viscous liquids, powders, and solids. The large opening permits…
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Round Bottom Boiling Flasks, SJ Joint, Heavy Wall, with Plastic Safety Coating
DWK Life Sciences (Kimble)KimCote® plastic-coated single neck flask with a SJ socket joint. Useful as rotary evaporator condensate collection flask or as a replacement for European designation KS 20/35.
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Round bottom, HEAVY WALL single short neck flask with a standard taper outer joint. The 29/26 flasks have a groove tooled just below the grind to aid in clamping of the flask. Please note: There are separate listings for different capacity single neck round bottom flasks.