国产乱子伦精品视频,狠狠色婷婷久久综合频道日韩,好姑娘6电影在线观看,久久精品国产亚洲av麻豆长发

Colorless, transparent and flammable liquids with asphyxiant irritative odor. It changes into light yellow liquid in the light or air, whose steam is strong lacrimator. Easy soluble in water, with ethanol, ether, benzene, toluene, kerosene and petrol in any mix ratio of each other.

Used for producting n-butyraldehyde, n-butanol, rubber vulcanization accelerator, alcohol denaturant, and tanning agents, etc..