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Adjustment Of Liquid Nitrogen Temperature

Edit: Henan Tianchi Instrument Equipment Co., Ltd    Date:2018-09-10
Adjustment of liquid nitrogen temperature: generally have ethanol or isopropanol solvent, how to control it is difficult, see the temperature rise, add liquid nitrogen, it will be difficult to control the solvent at a certain temperature. The lowest temperature that can be achieved with different solvents and liquid nitrogen is different.
Liquid nitrogen is cooled by taking away the heat of the solvent. It is best to solidify the solvent. This gives a relatively stable temperature. If it is 0 degrees, you can freeze it into ice. If it is negative 78 degrees, you can freeze the ethanol or Ethyl acetate is good, but it is constantly replenished with liquid nitrogen.