Flasks
Vessels used for containing liquids and performing mixing, heating, cooling, incubation, filtration, storage, distillation, volume measurement, and other common liquid handling processes.
The variety of laboratory flasks includes boiling flasks, cell culture flasks, distilling flasks, Erlenmeyer flasks, filtering flasks, freeze drying flasks, Kjeldahl flasks, recovery flasks, and volumetric flasks. Manufactured from a variety of materials, flasks are typically made of glass or plastic resins such as polystyrene, polypropylene, polycarbonate, polymethylpentene, or PTFE. Depending on their application, flasks can be sealed with various closures, including air-tight screw caps, vent caps, and stoppers made of ground glass, glass, plastic, or rubber.
Laboratory flasks are found in most chemical, biological, clinical, and industrial laboratories and in a variety of other workplace settings. They are available in a range of capacities ranging from 10 mL up to 10 L. Depending on the type, they may be supplied with a jointed ground glass top, a glass or plastic stopper, or a screw top.
What Styles of Laboratory Flask Are Available?
• Erlenmeyer flasks are conical and are used for a wide range of purposes; they are graduated and available in narrow-neck or wide-neck versions
• Büchner flasks are also conical, but with a side-arm to accept tubing for vacuum applications and extra-thick walls for increased strength when operating under reduced pressure
• Round-bottomed flasks, including retort and Kjeldahl flasks, are used in chemistry laboratories for reaction, digestion, or heating, and may have up to three necks for connecting to inlet/outlet tubing and other vessels
• Volumetric flasks are used to prepare standard solutions. They are supplied with precise, one-mark graduations and a stopper, and are designated as Class A or Class B depending on their accuracy. Standard measuring flasks are also offered for less critical measurements
• Cell culture flasks are often supplied with specialized cell-adherent treated surfaces and vented filters. They are normally sterile and may have baffled bases for improved aeration during agitation
Fisherbrand™ Reusable Glass Wide-Mouth Erlenmeyer Flasks
High resistance to heat, chemical attack, and mechanical shock
Fisherbrand™ Reusable Glass Narrow-Mouth Erlenmeyer Flasks
Long, tapered outside contour minimizes chipping
Fisherbrand™ Surface Treated Sterile Tissue Culture Flasks, Vented Cap
Perfect for cell growth, cell yields aim on little or medium input volume.
Fisherbrand™ Reusable Glass Class A Volumetric Flasks with Standard Taper Stopper
Single graduation ring blasted on the neck
Fisherbrand™ Reusable Glass Round-Bottom Boiling Flasks with standard taper Joint
Feature full length 24/40 standard taper Joint
Fisherbrand™ Reusable Glass Class A Volumetric Flasks with Snap Caps
Class A accuracy–without a serial number
DWK Life Sciences Wheaton™ Erlenmeyer Shake Flasks, Baffled Base
Manufactured with virgin, non-leaching Lexan resin that retains clarity after gamma irradiation. Wheaton Shake Flasks, Baffled are certified pyrogen-, DNase- and RNase-free. They have outstanding mechanical, optical, electrical and thermal properties and
Corning™ PYREX™ Short Ring Neck Round Bottom Flasks
Sometimes called balloon flasks
Thermo Scientific™ Nalgene™ Polypropylene Vacuum Flask
Replace glass flasks with this flask, molded in one piece for full vacuum service with angled tubulation to prevent tipping.
Corning™ Two- and Three-Litre Polycarbonate Erlenmeyer Flasks
Manufactured from optically clear polycarbonate for optimum visibility and durability. Corning™ Two-and Three-Liter Disposable Polycarbonate Erlenmeyer Flasks are ideal for shaker cultures applications.
Corning™ PYREX™ Delong Shaker Erlenmeyer Flask with Baffles
Heavy, fire-polished, long necks reduce splashing