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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Made of high quality, heavy duty, 3.3 borosilicate glass Includes interchangeable glass penny-head stopper Perfect for any science or home laboratory Iodine flask with ground joint and interchangeable stopper made of high quality, heavy duty 3.3 borosilicate glass. Used for iodine value…
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Cylindrical Reaction Kettles
SP Wilmad-LabGlassCylindrically shaped, the upper end of these borosilicate glass reaction kettles are tooled to obtain a thickened portion and flat top.The finely ground tops create a leak-proof fit with covers LG-8030 to LG-8050, ML-1285 and ML-1286.
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VITLAB, PFA Round Bottom Flasks
BrandTech®These corrosion- and leach-resistant flasks are excellent for rotary evaporation and distillation of high-purity chemicals. They are manufactured from PFA (a perfluoroalkoxy polymer) for excellent resistance to heat and chemical contamination, as well as smooth surfaces that greatly simplify…
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Flask has a #15 o-ring joint on the sidearm and a Chem-Vac™; Chem-Cap®; valve to control gas or liquid flow into the vessel. All sizes are of heavy wall construction, and are used with AF-0060 and AF-0061 manifolds or any other Airfree® component with a #15 o-ring joint. Supplied…
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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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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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4 Neck Reaction Vessel Covers
SP Wilmad-LabGlassFeaturing a center neck and three side necks with full length outer Standard Taper joints that are 120° apart, these borosilicate glass reaction vessel lids have a conical flange. Bottom flange ID is 4" and ground for a leak-proof fit with a reaction flask. For use with reaction vessels…
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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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Equilibration Flask
Ace GlassDesigned by Dr. H.R. Krouse, University of Calgary, for use in H2O18/H2O16 determination. Unique design eliminates the use of grease or breakseals in CO2 recovery. Water samples are introduced by pipet into bulb by removing PTFE plug. After reinstating plug, degassing of water and CO2 is…
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Thomas Nos. 1165M15, 1165M16, 1165M17, 1165M18, 1165M19, 1165M20, 1165M21 Jacketed cylindrical flask with flush seal and beaded pipe²inlet and outlets. The flask is graduated on both sides²which allows for either left or right hand orientation.²Features a Schott-Duran style o-ring…
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SYNTHWARE Modified Schlenk Flasks with Glass Stopcocks
Kemtech AmericaSYNTHWARE modified Schlenk flask with a standard taper outer joint and 2mm bore glass stopcock in side arm. The Kjeldahl shape permits easy transfer of liquids and solids. The lower portion of the flasks fits standard heating mantles to facilitate heating and stirring.
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Determines CO2 evolution to assess biodegradability by soil and sewerage micro-organisms. Shake flask fits standard laboratory shakers. #7 Ace-Thred side port with Nylon bushing and FETFE O-ring holds a glass septum adapter. Inner well has a capacity of 10 mL plus head space. Well is held securely…
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SYNTHWARE Modified Schlenk Flasks with High Vacuum Valves
Kemtech AmericaSYNTHWARE modified Schlenk flask with a standard taper outer joint and a 0-4 mm high vacuum valve in the side arm. The valve has a PTFE o-ring at the tip. The Kjeldahl shape permits easy transfer of liquids and solids. The lower portion of the flasks fits standard heating mantles to facilitate…
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SolventVap Receiving Flask 1/2Drain Port with PTFE Valve
Across InternationalHigh quality glass drain port with PTFE open/close valve for Ai 3L, 5L, 10L, 20L receiving flasks. Glass material: high borosilicate glass 3.3
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Flask, Reaction, Cylindrical
Ace GlassCylindrical, heavy wall reaction flask with extra thick flat, ground flange. Without constriction at top to facilitate introduction/removal of material and allow for ease of cleaning. Available in 1L to 4L capacities, flat bottom and round bottom, with
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Disposable Side-arm Assembly
CorningCorning Spinner Flask Aseptic Transfer Caps will enhance the productivity of your cell culture operations when adding or removing medium and cells. Aseptic Transfer Caps are sterile (10?6 SAL), individually double bagged and fit the side arms on 3L Corning Disposable Spinner Flasks (Cat. No. 3563).…
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Rugged cylindrical reaction flask with Duran, flat, ground flange with O-Ring groove, for use with 6517 Quick Release Clamp but with indents for greater agitation. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone O-Rings are also available. For…
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Head, Filter Reactor
Ace GlassReactor head, 60mm o-ring groove flange with (3) in-line 24/40 joints. Use with our 6384, 6386 and 6388 reactor bodies.
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Similar to 9843-04 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 -27 includes our 7506-10 #25 Ace-Thred bushing used to secure a…
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SYNTHWARE Heavy Wall Cylindrical Pressure Vessels
Kemtech AmericaPressure Vessel, Heavy Wall, Cylindrical, Synthware, Capacity: 15-120mL available, GL Thread Size: 15, Vessel has an internal thread for use with PTFE bushing, O-ring is positioned above the thread for inproved sealing.
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Borosilicate glass, round bottom reaction vessel. Supplied with 24/40 center neck and two 24/40 side necks. Fourth neck is #25 Ace-Thred on 500 mL for use with 7506-10 Bushing and O-Ring; #36 Ace-Thred on 1000 mL and 2000 mL sizes for use with 7506-12 Bushing and O-Ring to make a leak-tight…
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Storage Flasks, Cajon, Airfree®, Schlenk
ChemglassStorage flask sidearm has a 9mm OD tubulation for use with 3/8" Cajon® connections. Chem-Vac™ Chem-Cap® valve is used to control gas or liquid flow into the vessel.
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SYNTHWARE Schlenk Storage Tubes with High Vacuum Valves
Kemtech AmericaSYNTHWARE Schlenk storage tube with a high vacuum valve. The valve has a PTFE O-ring at the tip and a PTFE wiper to protect the O-rings on the shaft. Valve is used to control liquid or gas flow into the vessel.
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Rugged cylindrical reaction flask Duran, flat, ground flange and O-ring groove, with an Easy Action Plug bottom outlet with Chemraz O-Rings for draining contents. For use with 6517 quick release clamp. Each flask is supplied with one CAPFE O-Ring (PTFE encapsulated silicone O-Ring). Plain silicone…
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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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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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Heavy Wall blanks are 30% heavier than our standard CG-618 series. Blanks are used in the fabrication of single or multi-neck round bottom flasks. NOTE: NECK IS UNFINISHED, FLASK CANNOT BE USED WITHOUT MODIFICATION OF NECK.
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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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Round bottom, HEAVY WALL, three-flask with standard taper outer joints on the center and side necks. Entire body of the flask is jacketed and has two hose connections for circulation of heating or cooling liquid. Indentations increase agitation of the contents of the flask during stirring. …
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CELLine Bioreactor Flasks
Argos TechnologiesCELLine Flasks are ideal for monoclonal antibodies and expressed recombinant cellular protein production. Viable in vitro alternative to using mouse ascites, standard cell culture or tissue culture products. Bioreactors utilize innovative membrane technology to separate the cell cultivation area…
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Similar to 9833-05 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 three 14/20 side necks. Code -35 includes our 7506-10 #25 Ace-Thred bushing used to secure a…
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Reaction Flask, Cylindrical, Jacketed
Ace GlassCylindrical jackted reaction flask with a 4" (10.2cm), top opening. Jacket inlet/outlets are available with tangentially sealed with 28/15 O-Ring ball joint connections, or with #11 Ace-Threds, for use with 3/8in tubing.