Liquid Nitrogen Freezer Temperature

Each freezer isn t completely filled with liquid nitrogen for a few reasons.

Liquid nitrogen freezer temperature.

In its basic form a liquid nitrogen freezer is. Below 63 k it freezes into solid nitrogen. Liquid nitrogen ln 2 is nitrogen in a liquid state at low temperature 195 79 c 77 k. Because liquid nitrogen in a usual setting is boiling its usual temperature is 77 k.

However if the liquid nitrogen contacts the cellular formation the content will be damaged and become unusable. A constant temperature allows for vapor storage throughout the freezer at near liquid nitrogen temperatures. The temperature of liquid nitrogen is 190 c but the vapor keeps the tank colder than 170 c which is still good enough to keep all of the proteins in these cells completely inactive. 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 helium is also commonly used and allows for the lowest attainable temperatures to be reached. These liquids may be stored in dewar flasks which are double walled containers with. Over this temperature range liquid nitrogen looks much like boiling water. The cellular structure isn t completely destroyed preventing complete lost of moisture.

Liquid nitrogen is very cold. Liquid nitrogen freezers use liquefied carbon dioxide at 196 to freeze food or ingredients. 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. At normal atmospheric pressure nitrogen is a liquid between 63 k and 77 2 k 346 f and 320 44 f.

First it would be really expensive but more importantly it isn t necessary.