Isobutene，2-methyl propene, The main effects are asphyxiation, weak anesthesia and weak stimulation. Mixing with air can form an explosive mixture. There is a danger of burning and explosion when exposed to heat sources and open flames. Violent polymerization reaction may occur when heated. It reacts violently on contact with oxidants. The gas is heavier than air and can spread to a considerable distance at a lower place, and will ignite when it encounters a fire source.
