... Do not list Chinese pentaerythritol Physico-chemical nature of traits white crystalline powder. Melting point 261 ~ 262 Boiling ... point 276 Relative density 1.395g/cm3 Refractive index of 1.548 Solubility at 15 1g dissolved in 18ml ... be prepared by aviation lubricants, explosives, plasticizers, stabilizers Upper reaches of the raw materials formaldehyde, formic acid, caustic soda, acetaldehyde ...