properties: it can not dissolve in water, easily dissolve in organic solvents such as benzene, ethanol, ether and so on. a: the purity is colorless transparent liquid. the technical is a colorless to milky white or light yellow oil-like liquid. b: the appearance of technical pure o,o-diethyl phosphorochloridothionate is a colorless transparent oil-like liquid. uses: it is the important intermediate of organic phosphate pesphate pesticides, such as phoxim, chiorpyrifos, triazophos and so on.