Light yellow clear liquid, when facing the air the color will turn dark and the speed will even high if under strong sunshine. It is soluble in ethyl, chloroform, benzene and other organic solvent. Stable under ordinary conditions.DEHA has weak basic reaction with phenolphthalein, litmus; Nontoxic, have no effect to the other product. DEHA can be reduced into diethylamine when react with ozone .