hat
nontoxic gaz. Pwen k ap fonn li yo: -160 ℃, bouyi pwen: -40,8 ℃, dansite: 1. 213g / cm3 (20 ℃) .Lè melanje ak lè, li
eng
nontoxic gas. Its melting point：-160℃, boiling point:-40.8℃, density:1. 213g/cm3 (20 ℃).When mixed with air, its