日本国产在线,99精品久久久久中文字幕,全部免费毛片免费播放,十八影院,99久久99这里只有免费的精品,日韩在线播放中文字幕,欧美一区二区三区美人

Colorless with stimulating odor flammable liquid. rRlative density: 1.0897g/ ml (20/20 ℃), melting point: -6.5 ℃, boiling point: 127.4 ℃, refraction nD (20 ℃): 1.4379, specific heat capacity: 0.1990kJ / (kg ? ℃), flash point: 33.9 ℃. Soluble in water and common organic solvents. Chemical propery is lively.

Used as organic materials and the raw materials of plasticizer, dye, synthetic fiber, pesticide.