A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that slows the speed at which its contents change in temperature. It greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings by trying to be as adiabatic as possible.

A cryogenic storage dewar (or simply dewar) is a specialised type of vacuum flask used for storing cryogens (such as liquid nitrogen or liquid helium), whose boiling points are much lower than room temperature.

A dewar container—sometimes called a dewar flask or dewar—is a vessel with a vacuum space between a cold liquid and the outside walls of the vessel. One common type of dewar container is a thermos that you might use to keep drinks cold.

A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that slows the speed at which its contents change in temperature.

Cryogenic dewar flasks are essential for safely storing and handling liquefied gases like nitrogen, oxygen, and helium. These specialized containers maintain extremely low temperatures, ensuring the stability and longevity of cryogenic substances.

Dewar’s first-ever vacuum flask. Created in 1892 to hold liquefied gases at extremely low temperatures, this object is the forerunner of the Thermos flask.

Oct 19, 2023 · A thermos flask, also called a Dewar flask, is a special kind of bottle in which hot liquids like tea and coffee remain hot and cold items like ice or cold water remain cold for a long time. It is also popularly known by other names, such as a vacuum flask or simply a thermos.

stonylab Dewar Flask, Cylindrical Form Borosilicate Glass Dewar Flask with Aluminum Base, 300mm Interior Depth and 75mm Interior Diameter for Laboratory, 1000ml (1 Liter)

Dec 24, 2024 · A Dewar flask, also known as a Dewar vessel, is a specialized container designed to store and transport gases and liquids at extremely low temperatures.

Synthware™ Dewar flask, hemispherical low form I.D. × O.D. 65 mm × 80 mm, fits 100 mL flasks; Synonyms: Synthware F240100, at Sigma-Aldrich