Nitrogen n2
Cas no.: 7727-37-9
Einecs no.: 231-783-9
Un no.: un1066
Dot class: 2.2
Appearance: colorless
Grade standard: food grade, industrial grade, electronic grade.
In various analytical instrument applications:
Carrier gas for gas chromatography, support gas for electron capture detectors, liquid chromatography mass spectrometry, purge gas for inductive couple plasma.
Liquid nitrogen:
Like dry ice, the main use of liquid nitrogen is as a refrigerant.