산소
알곤
질소
탄산가스
헬륨
아산화질소
일산화탄소
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Molecular Weight 17.030
Flammability Limits in air 15-28%
Specific Gravity, Gas @70°F(21.1°C), 1 atm(Air=1) 0.594
Density, Gas @ 70°F(21.1°C), 1 atm 0.04lbs/ft³(0.71g/ml)
Specificvolume, Gas @ 70°F(21.1°C), 1 atm 22.6ft³/1b(1.411 l/g)
Boiling Point @ 1 atm -28° F(-33.4° C)
Melting Point @ 1 atm -107.9° F(-77.8°C)
Critical Temperature 270.4°F(132.4°C)
Toxicity
PEL 50 ppm
TLV-TWA 25 ppm
STEL 35 ppm
LC50RAT 7338 ppm
IDLH 500 ppm