Boiling Flasks
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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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SYNTHWARE Microscale 3-Neck Round Bottom Flasks
Kemtech AmericaRound Bottom Flask, Micro Scale, Synthware, Capacity: 25, or 50mL available, Joints: 14/10 threaded.
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Pear-shaped boiling flasks have full length outer 14/20 Standard Taper joints and are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their…
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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…
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Borosilicate Glass Flat Bottom Boiling Flasks
United Scientific SuppliesBorosilicate Glass Flat Bottom Boiling Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack.
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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 larger capacity round bottom flasks.
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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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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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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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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 Microscale Pear-Shape Flasks
Kemtech AmericaPear Shape Flask, Threaded, Synthware, Capacity: 5, 10, and 25mL available, Joint: 14/10, Supplied with one open top compressioncap and one size 014 Viton O-ring and one PTFE-faced septa.
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Round bottom, single neck flask with either a beaded tube end port or a beaded tube end well. Well I.D. on 6935-03 thru 6935-17 is approximately 9.5mm. Well I.D. on 6935-64 thru 6935-78 is approximately 9mm.
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Single Neck Flat Bottom Flasks
ChemglassSingle neck, flat bottom flask with a standard taper outer joint.
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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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These 250mL PYREX(r) low actinic flat bottom boiling flasks have full length outer 24/40 Standard Taper joints, but with shorter necks. Low actinic stained glass provides protection for materials sensitive to light. The protective color is an integral part of the flask, which retains the mechanical…
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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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Flask 50 ml
CorningThese 50mL PYREX® flat bottom boiling flasks have full length outer 24/40 Standard Taper joints, but with shorter necks. Adapter Nos. 8800, 8820 and 8825 are used to connect flasks with different size joints, thus allowing numerous combinations for diverse assemblies. Manufactured from…
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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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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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Borosilicate Glass Round Bottom Boiling Flasks with Ground Glass Joints
United Scientific SuppliesBoiling, 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.
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Flask, Round Bottom, Ace-Thred Side Port
Ace GlassRound bottom, single neck flask with Ace-Thred side port supplied with our 5029-10 nylon bushing and 7855-704 FETFE o-ring. Bushing is ideal for use with thermometers or bleed tubes of up to 7mm OD. Available in standard and heavy wall versions.
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Borosil® Flat Bottom (Florence) 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…
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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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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
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Flask, Two Necks, Vertical
Ace GlassTwo neck, one center and on vertical side neck, round bottom flask with standard taper joints. Available in standard wall or heavy wall.
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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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Flask, Round bottom, Three Neck
Ace GlassRound bottom, three neck flask. Side necks are angled. Available in standard wall for more rapid heating or heavy duty for mechanical shock resistance. Microscale flasks, codes -34 & -36, feature 14/10, 20-400 externally threaded cap-seal joints supplied with 14.7-15mm holed caps, PTFE faced…
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These PYREX(r) pear-shaped boiling flasks have full length outer 14/20 Standard Taper joints and are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance.…
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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.