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What happens to liquid nitrogen at room temperature

Edit: Henan Tianchi Instrument Equipment Co., Ltd    Date:2020-04-13
Liquid nitrogen is an inert, colorless, non-corrosive liquid substance with a density of 0.808g / cm3. It can be used as a refrigerant for freezing and transporting food, low temperature experimental research, chemical testing, industrial nitrogen fertilizer, etc. The melting point is -209.8 ° C and the boiling point is -196.5 ° C. The temperature is extremely low at room temperature and can reach -196 ° C. However, when liquid nitrogen comes into contact with the atmosphere in a large area, it will quickly evaporate and produce a large amount of white smoke, which becomes nitrogen. Melt into the atmosphere. Usually a volume of liquid nitrogen can expand to 696 volumes of gaseous nitrogen.
Therefore, for liquid nitrogen storage, please use a professional storage container-liquid nitrogen tank, which is made of high-strength, special corrosion-resistant aluminum alloy, has good insulation and good thermal insulation effect, can store liquid nitrogen for a long time, and can also be used for Liquid nitrogen transportation.
What happens to liquid nitrogen at room temperature