Physical and Chemical Properties | The pure chemical product is white crystal and has no smell. M. p.128 ℃, relative density 1.256 (25 ℃), vapor pressure 66.66Pa (110 ℃). Solubility at 27 ℃: acetone 171g/L, benzene 36g/L, toluene 42g/L, ethanol 17g/L, water 0.74mg/L. Stable in neutral and weakly acidic solutions, unstable in alkaline or thermally strong acidic solutions. The original drug is stable, but unstable to the liquid medicine after water. The half-life in the soil is 2~7 days and disappears within 1 month. |