Liquid Nitrogen Freezer Temperature

Liquid nitrogen freezers use liquefied carbon dioxide at 196 to freeze food or ingredients.

Liquid nitrogen freezer temperature.

Liquid nitrogen is very cold. Each freezer isn t completely filled with liquid nitrogen for a few reasons. First it would be really expensive but more importantly it isn t necessary. At normal atmospheric pressure nitrogen is a liquid between 63 k and 77 2 k 346 f and 320 44 f.

However if the liquid nitrogen contacts the cellular formation the content will be damaged and become unusable. In applications where storage temperatures above 150 c are acceptable laboratory personnel have had to accept these tradeoffs between usability and reliability in selecting among conventional mechanical and cryogenic refrigeration. A constant temperature allows for vapor storage throughout the freezer at near liquid nitrogen temperatures. Because liquid nitrogen in a usual setting is boiling its usual temperature is 77 k.

In its basic form a liquid nitrogen freezer is. Modern vapor phase liquid nitrogen freezers are so well insulated that the sample space temperature is maintained at or below 190 c even if the lid is kept off. Mve stock provides the ultimate in security for the breeding industry and are primarily used to store semen and embryos. Liquefied gases such as liquid nitrogen and liquid helium are used in many cryogenic applications liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable around the world.

Liquid nitrogen ln 2 is nitrogen in a liquid state at low temperature 195 79 c 77 k. Below 63 k it freezes into solid nitrogen. Over this temperature range liquid nitrogen looks much like boiling water. The cellular structure isn t completely destroyed preventing complete lost of moisture.

Liquid helium is also commonly used and allows for the lowest attainable temperatures to be reached.