... .8%Density1.573g/cm3Solubility In water<0.4g/100ml(20°C)Water≤0.1%Ash≤0.03%Melting point354°CPH7.5 ... toxicity, non- dangerous chemical. density 1.573g/cm3 (16 °C). Pressure melting point 354 °C, the rapid heating the decomposition; rapid increase sublimation ... , sublimation temperature 300 °C. Solubility in water increases with temperature, at 20 °C, about 3.3 g / L, that ...