乙稀在工业上用于制合成橡胶、塑料和乙醇、乙醇等，也用作水果和蔬菜等的催熟剂，在常温下为无色，无臭稍带有甜味的气体。几乎不溶于水，易溶于有机溶剂、易燃。乙稀主要从呼吸道侵入机体，经肺泡吸收后，仅极小部分以物理状态溶于血液中，其中约70％一80％分布于红细胞内，2 It is also used as a ripening agent for fruits and vegetables, etc. It is colorless and odorless with a slight sweetness at room temperature. Almost insoluble in water, soluble in organic solvents, flammable. Bone mainly from the respiratory tract invade the body, absorbed by the alveoli, only a small part of the physical state of the blood dissolved, of which about 70% to 80% of the distribution in the red blood cells, 2