Flasks
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
PYREX™ Class A Volumetric Flask with Glass Standard Taper Stopper
Improved lab convenience, broad selection and precise volume measurement as well as being manufactured to Class A tolerances
Eisco™ Class A Glass Volumetric Flask with Stopper
Class A Glass Volumetric Flask with Stopper - Features a flat bottom design, single graduation, and blue print markings.
Thermo Scientific™ Nunc™Flasks, Non-treated
For cells that do not require Nunclon™ Δ treated surface.
Eisco™ Glass Pear Shaped Boiling Flasks, Short Neck
Pear shaped boiling flasks made from high quality borosilicate glass. Designed with a short neck and interchangable joint as per DIN12383 standard.
United Scientific™ Glass Erlenmeyer Flasks, Set of 5
Erlenmeyer Flask set is a convenient assortment of popular sizes.
Eisco™ Round Bottom Distillation Flasks with Side Arm
High quality borosilicate 3.3 glass round bottom distillation flasks with integral side arms
Eisco™ Erlenmeyer Flasks - Wide Neck
High quality borosilicate 3.3 glass Erlenmeyer flasks with wide neck design.
Eisco™ Class A Amber Glass Volumetric Flasks with Polypropylene Stoppers
Eisco™ Class A Amber Glass Volumetric Flasks with Polypropylene Stoppers protect light sensitive chemicals and feature a single graduation mark.
Eisco™ Conical Filtering Flask with Integral Side Arm
The borosilicate glass conical filtering flask with integral side arm is ideal for storage, mixing, and transferring of various solutions. The flask is easy to use in any lab with its flat bottom, side arm, narrow neck, and beaded rim.
Eisco™ Glass Erlenmeyer Flasks, Narrow Neck
Graduated conical flasks made from high-quality borosilicate 3.3 glass.
PYREX™ Heavy Duty Erlenmeyer Flasks, Wide Mouth
Use these flasks for a variety of applications. PYREX™ Wide Neck Heavy-Duty Erlenmeyer Flasks are designed for longer life and feature a high resistance to chemical attack, rugged tooled top finish and wide mouth.
Eisco™ Erlenmeyer Flask, Narrow Neck
High quality borosilicate 3.3 glass Erlenmeyer Flask with narrow neck design.
DWK Life Sciences Kimble™ ValueWare™ Narrow-Mouth Erlenmeyer Flasks
Economical and versatile; ideal for general laboratory usage.
United Scientific™ Class A Volumetric Flask with Snap Cap, Batch Certified (QR-Code)
Volumetric Flasks featuring a QR Code that makes tracking down certificates easier and simplifies the lab audit process.
United Scientific™ Borosilicate Glass Flat Bottom Boiling Flask
Boiling Flask featuring a high level of shock resistance.