Liquid nitrogen

Liquid nitrogen is an inert, colorless, odorless, non-corrosive, non-flammable, extremely cold liquid.Nitrogen is inert and does not support combustion.Applications: food refrigeration, metallurgical industry, washing and protective gas, gas laser, air equipment, power transmission and waste treatment.

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PHYSICAL AND CHEMICAL PROPERTIES

Physical state:Liquid

Appearance & odor:Colorless, odorless.

Odor threshold (PPM):Odorless.

Vapor pressure :Gas@ 70°F (21°C)

Vapor sp. gravity (air=1):0.967 @ 70°F (21°C)

Volatiles (% by volume)：100%

Boiling point :-195.8°C (760 mmHg)，320.4°F

Freezing point :-209.9°C,-345.8°F

Solubility in water (%):Slight.

Certification：

Purity	Not less than ？( Mol/Mol)
Nitrogen	Not more than？ (μMol/Mol)
Oxygen	Not more than ？ (μMol/Mol)
Hydrogen	Not more than ？ (μMol/Mol)
CH4+CO+CO2	Not more than ？(μMol/Mol)
H2O	Not more than ？ (μMol/Mol)