Glass Dewar

Cylindrical form, silvered and evacuated. Furnished with an aluminum base. Exterior, including base, is coated with a tough, resilient, baked-on plastic which does not rupture if flask breaks. Intended for use with liquid nitrogen. Performance is not g

For use with dry ice and other solid cooling agents. Can also be adapted for use as a small constant temperature bath by using a constant boiling liquid. In this manner, can also be used as an oil bath. The larger size will hold 100mL flask, small size

For use with dry ice and other solid cooling agents. Can also be adapted for use as a small constant temperature bath by using a constant boiling liquid. In this manner, can also be used as an oil bath. The larger size will hold 100mL flask, small size

These vacuum lab-grade standard dewars are manufactured for efficient use with liquid nitrogen (LN₂) and other liquid gases Dewar vacuum flasks are made of double-walled borosilicate glass, fully silvered, evacuated to 10-5 and covered by a protective mesh. Evacuation tips and flask…

Dewar type condenser for use with dry ice or other solid cooling agents. Upper tube is 12mm O.D. At bottom is standard taper 24/40 inner joint.

Dewar Condenser, Micro Joints: 14/20 Inside Depth: 90mm Inside Diameter: 31mm Side joint is at 90 degree angle.

Used in construction of apparatus requiring the outer member to be jacketed. Configuration of flare permits seal to be made without having to regrind the joint.

Vacuum Trap, Dewar, Micro Reservoir Capacity: 100mL Stopcock: Glass or Teflon options available 2mm Stopcock Bore

Vacuum Trap, Dewar Type Capacity: 250, 500, and 1000mL available Stopcock: Glass or Teflon Options available Stopcock Bore: 4mm

Cylindrical glass liner for increased coolant capacity

Borosilicate Glass Liner Permit many essential operations; not practical with standard cylindrical or spherical Dewar These operations include: Rapid freezing and recovery of tissue/organ specimens Ability to insert small flasks in Dewar Agitation in flask with…

Dewar Flask, Tall Form, Metal Housing Capacity: 350, 665, 1000, 1900, 3500, and 4300mL available Interior Depth: 125, 195,190, 302 and 305mm available Interior Diameter: 70mm Flask has weighted base for stability and a full length aluminum housing which extends to the top rim. *Due to…

Borosilicate glass with protective aluminum or plastic mesh housing and extended aluminum base weighted for stability. Legal Information: Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Dewar Flask, Low Form, Hemispherical Multiple sizes available, with aluminum base to allow transfer of magnetic field. *Due to extra high vacuum, the Dewar flasks still have a rare possibility to explode, so working behind a safety shield in hood and always wearing goggles are strongly…

…or dry-ice 4 sizes available Our dewar flasks are rust-free, non-corrosive, hygenic and strong. Double-walled boroscilicate glass, vacuum pumped and silvered insures efficient storage, transport and use of liquid nitrogen and dry-ice. These Dewar Flasks have an all-stainless steel vented…

Economical Vented lid Suitable for LN2 or dry-ice 4 sizes available Blue metal cased economy Dewar Flasks are rust and corrosion resistant. Double-walled silvered boroscilicate glass, vacuum pumped insures efficient storage, transport and use of liquid nitrogen and dry-ice. Lid vent…

Similar to 5028M40 series, but aluminum base extends up to mouth of flask Without plastic mesh

Pope Lab Grade Dewars are rated the most efficient glass Dewars in the World! This superior ranking is due to rigid quality controls in manufacture and a number of outstanding design and manufacturing features. Efficiency assured by rigid bakeout and evacuation control (evacuated to 10-5…

The handled Dewar vacuum flask is ideal for temporary storage and liquid gas service, especially Liquid Nitrogen. The wide mouth design with the fully silvered borosilicate glass inner flask incorporates the convenience of a coated handle and full aluminum base on the most popular cylindrical model…

… Patented foam dewars provide a safe and durable vessel for handling liquid nitrogen, dry ice/acetone mix and cryogenic materials. Unlike conventional glass and stainless steel Dewar flasks which depend upon a vacuum layer for insulation, closed cell foam dewars use a fine closed cell…

… Patented foam dewars provide a safe and durable vessel for handling liquid nitrogen, dry ice/acetone mix and cryogenic materials. Unlike conventional glass and stainless steel Dewar flasks which depend upon a vacuum layer for insulation, closed cell foam dewars use a fine closed cell…

Used for freezing out undesired vapors in the vacuum system and also for use in conjunction with Dewar flasks.

Stainless steel/glass, wide mouth Features a corrosion-resistant, stainless steel exterior with a carrying handle and vented lid which is secured by two toggle clamps Recommended for the safe transportation of liquid nitrogen Various capacities

Modified version of 8750 series of vacuum traps, with side arm bent 90 degrees upward for easier attachment of vacuum tubing. For use with vacuum systems to capture undesirable vapors. Fits easily into Dewar flasks.

Twin chamber vacuum trap for double protection against undesired vapors in a vacuum system. Trap can be used in a two liter Dewar flask such as 12540-07. Distance from outside of one body to outside of other is approximately 97mm; height is 250mm. Inlet and outlet have serrated fittings; O.D. of…

Vacuum trap system protects gauge heads, like our 14034, and pumps from corrosive vapors and particle fouling. System consists of a Dewar flask, cold trap and inlet arm. High-vacuum stopcocks are used throughout. Gauge & inlet arm are Ace-Thred connections. Pump & manifold connections are o-ring…

…these borosilicate glass vacuum traps are a one piece unit with two 3/8" hose connectors. Connectors are 180° apart to ease connection of heavy wall rubber tubing used in basic vacuum set-ups. These traps are frequently used with liquid nitrogen Dewars to provide rapid condensation…