Specialty Flasks
Specialty flasks are the backbone of many experimental setups, offering the durability and precision needed for demanding experiments.
Explore our diverse collection, including round bottom flasks, single neck flasks, bioreactor flasks, Ace Glass freeze-drying flasks, and 4 neck flat flange reaction vessel covers. All flasks are carefully designed to withstand the requirements of multiple research and analysis procedures.
In this category, you'll discover renowned brands such as Chemglass, Ace Glass, and Kemtech America, all known for their commitment to quality and innovation in lab glassware.
Whether you're searching for a Schlenk flask, a three-neck round bottom flask, a biomass flask, or a 3-neck flask for your lab, we offer a selection of flask options suitable for a range of experiements. Trust our specialty flasks to provide the precision and durability your research demands.
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Distilling round-bottom flask coated with Ace Instatherm. Designed to operate up to 360 & deg; C, heating response time is very rapid, (5° per minute), with very low thermal lag. Has vertical standard taper reinforced outer center neck and angled standard taper reinforced outer side neck.…
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Flask Reaction, Hi-Vac Valve NO-AIR
Ace GlassRound bottom borosilicate glass flask with standard taper center neck and a 0-4 Hi-Vac valve for precise control. Flask is ideal for simple NO-AIR and vacuum applications. Outlet arm is 8MM and can be fitted with a rubber septa for insertion of samples or additives via syringe.
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SYNTHWARE Transfer/Storage Flasks
Kemtech AmericaSYNTHWARE transfer/storage flask for long term storage of deoxygenated solvent. Recovery of solvent is done thru the valve body using a cannula or syringe.
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Round bottom, HEAVY WALL two neck flask with standard taper outer joints on both the center neck and angled side neck. Flasks with 10/30 side neck are for use with CG-3506 thermometers. The 29/26 center neck flasks have a groove tooled just below the grind to aid in clamping of the flask.
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Pear Shaped Glass Recovery Flasks
United Scientific SuppliesHeavy wall recovery flasks are ideal for use with rotary evaporators. Flasks feature a square bead and a single neck with ground glass 24/40 joint. Opening at top is designed for easy recovery of reaction products using a spatula. Flask bottom fits standard heating mantles.
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Similar to 9844-07 Vessel except jacketed to provide active cooling from tap water or mechanical cooler. Jacket is cylindrical with flat bottom for greater stability. With #25 Ace-Thred center neck and two 14/20 side necks. Code -30 includes our 7506-10 #25 Ace-Thred bushing used to secure a…
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Flask, Reaction, Spherical, Plain
Ace GlassRugged spherical reaction flask with Duran, flat, ground flange with O-Ring groove, for use with 6517 Quick Release Clamp. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone O-Rings are also available. For reaction heads, see 6528, 6529 or 6530. For…
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Round bottom, indented Morton Type, three neck flask. 500ml and 1L sizes have angled side necks while larger sizes feature vertical necks. Available in heavy wall. Indents enhance agitation during stirring.
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Cylindrical pilot plant reactors providing portable, self-contained reaction system for research and production purposes. Systems available in 10L, 30L and 50L plain or jacketed capacities with a variety of domed or flat reaction heads. Ask us to build
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Round bottom storage flask with a standard taper outer joint on the sidearm. The 50, 100 and 250mL sizes have a 0-4mm Chem-Vac™ Chem-Cap® valve while the 500 and 1000mL sizes have a 0-8mm valve size.
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Round bottom, HEAVY WALL flask with a standard taper outer joint and a side well to accept a thermometer. Top of thermowell is tooled to accept a #0 rubber stopper.
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Complete reaction assembly available in 12L, 22L, 50L and 72L spherical flask capacities. Unit is complete with heating mantle and controls, mechanical stirrer and controls, pressure equalizing funnel and pilot plant condenser.
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Round bottom flask with a 0-4mm Hi-Vac valve top with a 9mm side port designed to accept 3/8in Cajon fittings. The valved top gives the researcher precise flow control.
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4 Neck Molded Reaction Vessel Covers
SP Wilmad-LabGlassThese borosilicate glass 4-neck reaction vessel lids/covers have a contact surface that is finely ground to provide a tight seal. Featuring a flat flange, these pressed lids have a center neck and three side necks with outer Standard Taper joints. Use LG-7316 clamps. NOTE: LG-8081 for use with…
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Iodine Flasks
CorningFor the determination of the iodine number of oils, fats and waxes by the Wijs and Hanus methods Flaring, funnel-shaped lip and Standard Taper 22 stopper
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Flask, Trypsinizing
ChemglassManufactured from Type 1 Class A borosilicate glass with FOUR deep side baffles for optimum agitation during trypsinization. Flask comes with beaded, break-resistant lips and 50mm OD necks. Sold 1 per case.
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SYNTHWARE round bottom two neck reaction flask with standard taper outer joints and 2mm bore glass stopcock sidearm. Useful for sample storage and simple reactions. The stopcock has a constant pressure retention device.
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SYNTHWARE Round Bottom Reaction Flasks with Glass Stopcock
Kemtech AmericaSYNTHWARE round bottom single neck reaction flask with a standard taper outer joint and a 2mm bore glass stopcock sidearm. Useful for sample storage and simple reactions. The stopcock has a constant pressure retention device.
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Ace Glass Freeze Drying Flask
Ace GlassComplete fast-freeze flask with snap-on rubber cap and 1/2-inch or 3/4-inch O.D. plain or valve adapter, compatible with all major brand freeze drying manifold valves. Borosilicate flasks are designed for ease of handling, faster loading. Uniform wall weight maximizes heat transfer while…
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Scale-Up Series™ jacketed cylindrical flasks with Easy Drain glass valves and KF flange inlet & outlets. The flask is graduated on both sides allowing for either left or right hand flask orientation. The Easy Drain valve is designed to prevent accidental removal when opening and incorporates…
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Reaction Flask, Spherical
Ace GlassRugged spherical flask with neck opening of 4" (10.2cm). Standard size flasks use regular Glas-Col heating mantles of equivalent capacity. Length of straight section including flange, approximately 9.5cm (33/4 "). Uses 6496 Clamp for securing flask hea
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Reaction Flask Head
Ace GlassHeads with three necks (inline) that fit our 6504,6511&6516 reaction vessels that feature either a 137 x 100mmID or 168 x 130mmID flat flange. Use with our 6508 or 6510 clamps. For improved sealing of flat ground flanges, please see our 6495 product family of gaskets. Note: vessels with o-ring…
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4 Neck Flat Flange Reaction Vessel Cover
SP Wilmad-LabGlassFeaturing a center neck and three side necks with full length outer Standard Taper joints, this borosilicate glass 4-neck reaction vessel lid/cover has a flat flange. Use LG-7316 clamps. NOTE: LG-8087 is designed to be used with LG-8080, LG-8084, LG-8085, and LG-8089 cylindrical reaction vessels.
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Glassblowers Flask Blanks, Pear Shaped
ChemglassBlanks for fabrication of pear-shaped flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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Hydrogenation/Gas Apparatus I
Ace GlassParr Model 3911 Hydrogenation unit for working volumes of 1ml to 200ml . Ace-thred vessels replace rubber stoppered vessels and eliminate cross-over contamination caused by leeching or sample retension. Complete unit includes all adapters needed for the supplied 8648 series bottles…
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Glassblowers Flask Blanks, Round Bottom
ChemglassBlanks for fabrication of single or multi-neck round bottom flasks. NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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Stainless Steel McCarter Reaction Clamps
SP Wilmad-LabGlassUsed to connect two pieces of glass with flat flanges of the same diameter, these stainless steel horseshoe-shaped clamps are uniquely designed. Adjustable tension springs that secure even pressure over the flange area, may be slid on or off easily - thus facilitating assembly and disassembly of…
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Class A Volumetric Saybolt Viscosity Flasks
DWK Life Sciences (Kimble)KIMAX flask used in determining Saybolt viscosity of petroleum and bituminous materials. As described in ASTM test methods D88 and E102 Heavy walls and reinforced top Graduation ring blasted on neck Calibrated to contain Marking spot Manufactured from 33 expansion, low…
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This is a 1L PYREX® replacement flask with a 29/42 outer Standard Taper joint for the No. 3840-XL 1L extractor system. The tubulation O.D. on the condenser is 10mm.
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Round bottom single neck flask having a standard taper outer joint with a Chem-Vac™ Chem-Cap® valve sidearm. Plug may be removed for sampling from flask while a purge of inert gas is maintained thru the sidearm. Valve size is as listed.
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Flask, Flat Bottom, Three Neck
Ace GlassFlat bottom, three neck flask can sit on stirrer hot plate with no further support. 250ml and 500ml sizes feature angled side necks while the 1000ml size necks are vertical.