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
Filtered Search Results
Thermo Scientific™ Nunc™Flasks, Non-treated
For cells that do not require Nunclon™ Δ treated surface.
Eisco™ Class A Amber Volumetric Flasks with Individual Work Certificates
Class A Volumetric Flasks include interchangeable polypropylene stoppers and individual work certificates. Amber glass helps to protect light sensitive contents.
| Includes | Individual Work Certificate |
|---|---|
| Product Type | Volumetric Flask |
| Color | Amber |
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| Class | A |
| Bottom Shape | Flat |
| Calibration | To Contain |
| Closure Type | Stopper |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Flat Bottom Boiling Flasks with Interchangeable Joint
High quality borosilicate 3.3 glass flat bottom boiling flasks feature short necks and interchangeable joints.
Eisco™ Class A ASTM Glass Volumetric Flask with Polypropylene Stopper
Made of high quality Borosilicate 3.3 glass in compliance with ASTM-E288 standards. Features a single, blue graduation mark and chemically resistant polypropylene stopper.
| Graduated | Yes |
|---|---|
| Class | A |
| Material | Borosilicate Glass 3.3 |
| Certifications/Compliance | ASTM-E288 |
| Calibration | To Contain |
| Closure Material | Polypropylene |
Eisco™ Glass Erlenmeyer Flasks, Narrow Neck
Graduated conical flasks made from high-quality borosilicate 3.3 glass.
| Product Type | Erlenmeyer Flask |
|---|---|
| Material | Borosilicate Glass |
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper feature one graduation mark, a fitted chemical resistant stopper, and blue printed markings.
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper feature one graduation mark, a fitted chemical resistant stopper, and blue printed markings.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| Class | B |
| Bottom Shape | Flat |
| Closure Color | White |
| For Use With (Application) | Prepare chemical solution |
| Closure Type | Stopper |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
| Closure Material | Polypropylene |
Eisco™ Class A Clear Volumetric Flasks with Individual Work Certificates
Class A Volumetric Flasks include interchangeable polypropylene stoppers and individual work certificates.
| Includes | Individual Work Certificate |
|---|---|
| Product Type | Volumetric Flask |
| Color | Clear |
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| Class | A |
| Bottom Shape | Flat |
| Calibration | To Contain |
| Closure Type | Stopper |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Polypropylene Conical Flask, 250 mL
Break-resistant polypropylene conical flasks with a screw top are great, economical alternative for similar glass flasks
| Shape | Conical |
|---|---|
| Material | Polypropylene |
| Autoclavable | Autoclavable |
| Closure Type | Screw Cap |
Eisco™ Safety Pack Erlenmeyer Flask Sets
Multi-piece Safety Pack Erlenmeyer Flasks feature white, printed graduations, narrow neck design, and beaded rims.
| Neck Style | Narrow Neck |
|---|---|
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| Autoclavable | Yes |
Eisco™ Glass Three Neck Distillation Flasks
Eisco™ Glass Three Neck Distillation Flasks with screw threads at the neck, which allows the flasks to connect firmly with other glassware.
| Color | Clear |
|---|---|
| Material | Borosilicate Glass 3.3 |
| For Use With (Application) | Heating liquids, distillation |
| Sterility | Non-sterile |
Eisco™ Glass Round Bottom Boiling Flask, Wide Neck
Round bottom boiling flasks made from high quality borosilicate glass. Designed with a wide neck and beaded rim as per DIN12347 standard.
| Disposable | No |
|---|---|
| Neck Style | Wide |
| Mouth Style | Beaded |
| Color | Clear |
| Graduated | No |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Round |
| For Use With (Application) | Heating liquids |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Round Bottom Distillation Flasks with Side Arm
High quality borosilicate 3.3 glass round bottom distillation flasks with integral side arms
| Color | Clear |
|---|---|
| Graduated | No |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Round |
| For Use With (Application) | Distillation |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Erlenmeyer Flasks - Narrow Neck
High quality borosilicate 3.3 glass Erlenmeyer flasks with narrow neck design.
| Neck Style | Narrow |
|---|---|
| Color | Clear |
| Material | Borosilicate Glass 3.3 |
| For Use With (Application) | Heating/holding liquids |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Conical Filtering Flask with Integral Screw Thread Side Arm
High quality borosilicate 3.3 glass conical filtering flasks with integral plastic screw thread side arms. Conical shape provides stability, screw thread allows tight connections with other glassware.
| Neck Style | Narrow |
|---|---|
| Color | Clear |
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| For Use With (Application) | Filtering liquids |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Class A Glass Volumetric Flasks with Stoppers
Eisco™ Class A Glass Volumetric Flasks with Stoppers feature a flat bottom design, single graduation, and blue print markings.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Color | Clear |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Flat |
| For Use With (Application) | Prepare chemical solution |
| Sterility | Non-sterile |
| Closure Material | Borosilicate Glass 3.3 |
| Graduated | Yes |
| Class | A |
| Closure Color | Clear |
| Closure Type | Glass Stopper |
| Autoclavable | Autoclavable |
Eisco™ Polypropylene Conical Flasks with Screw Caps
Eisco™ Polypropylene Conical Flasks with Screw Caps feature a rigid, durable, and translucent body.
| Disposable | No |
|---|---|
| Color | Clear |
| Graduated | No |
| Material | Polypropylene |
| Closure Color | Clear |
| For Use With (Application) | Heating and holding liquids |
| Closure Type | Screw Cap |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
| Closure Material | Polypropylene |
Eisco™ Glass Iodine Flask with Glass Stopper
Eisco™ Glass Iodine Flask with Glass Stopper are made from high quality borosilicate 3.3 glass and are designed for iodine value determination.
| Disposable | No |
|---|---|
| Color | Clear |
| Graduated | No |
| Material | Borosilicate Glass 3.3 |
| Closure Color | Clear |
| For Use With (Application) | Iodine value determination |
| Closure Type | Glass Stopper |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
| Closure Material | Borosilicate Glass 3.3 |
Eisco™ Class A Glass Volumetric Flasks with White Graduations
Eisco™ Class A Glass Volumetric Flasks with White Graduations feature a flat bottom design, interchangeable solid glass stoppers, and single graduation.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Color | Clear |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Flat |
| For Use With (Application) | Prepare chemical solution |
| Sterility | Non-sterile |
| Closure Material | Borosilicate Glass 3.3 |
| Graduated | Yes |
| Class | A |
| Closure Color | Clear |
| Closure Type | Glass Stopper |
| Autoclavable | Autoclavable |
Eisco™ Glass Evaporating Flasks
Eisco™ Glass Evaporating Flasks are constructed of high quality borosilicate glass for durability.
| Disposable | No |
|---|---|
| Color | Clear |
| Graduated | No |
| Material | Borosilicate Glass |
| Bottom Shape | Round |
| For Use With (Application) | Heating / Holding Liquids |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Class B Glass Volumetric Flasks with White Graduations
Eisco™ Class B Glass Volumetric Flasks with White Graduations feature a flat bottom design, interchangeable solid glass stoppers, and single graduation.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Color | Clear |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Flat |
| For Use With (Application) | Prepare chemical solution |
| Sterility | Non-sterile |
| Closure Material | Borosilicate Glass 3.3 |
| Graduated | Yes |
| Class | B |
| Closure Color | Clear |
| Closure Type | Glass Stopper |
| Autoclavable | Autoclavable |
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper feature one graduation mark, a fitted chemical resistant stopper, and blue printed markings.
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper
Eisco™ Class B Glass Volumetric Flasks with Polypropylene Stopper feature one graduation mark, a fitted chemical resistant stopper, and blue printed markings.
Eisco™ Class B Volumetric Flask
Eisco™ Class B Volumetric Flask without stopper is constructed of high quality Borosilicate 3.3 Glass and features a single graduation mark.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Color | Clear |
| Graduated | Yes |
| Material | Borosilicate Glass 3.3 |
| Class | B |
| Bottom Shape | Flat |
| For Use With (Application) | Prepare chemical solution |
| Autoclavable | Autoclavable |
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.
| Disposable | No |
|---|---|
| Neck Style | Long |
| Mouth Style | Beaded |
| Color | Amber |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Flat |
| For Use With (Application) | Prepare chemical solution |
| Sterility | Non-sterile |
| Closure Material | Polypropylene |
| Graduated | Yes |
| Class | A |
| Closure Color | White |
| Closure Type | Stopper |
| Autoclavable | Autoclavable |
Eisco™ Glass Round Bottom Boiling Flask, Narow Neck
Round bottom boiling flasks made from high quality borosilicate glass. Designed with a narrow neck and beaded rim as per DIN173 standard.
| Disposable | no |
|---|---|
| Color | Clear |
| Graduated | no |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Round |
| For Use With (Application) | heating liquids |
| Autoclavable | Autoclavable |
| Sterility | Non-sterile |
Eisco™ Flat Bottom Boiling Flasks with Narrow Neck
Eisco™ Flat Bottom Boiling Flasks with Narrow Neck are ideal for dealing with liquids at different temperatures due to their thick-walled design.
| Disposable | No |
|---|---|
| Color | Clear |
| Material | Borosilicate Glass 3.3 |
| Bottom Shape | Flat |
| For Use With (Application) | Heating liquids |
| Autoclavable | Autoclavable |
Eisco™ Flat Bottom Boiling Flasks, Wide Neck
Flat bottom boiling flasks made from high quality borosilicate glass. The flasks are ideal for dealing with liquids at different temperatures due to their thick-walled design. Flasks have a wide neck and beaded rim as per DIN ISO 24450 standard
| Material | Borosilicate Glass 3.3 |
|---|