Dl-pentaerythritol:a white,odorless and crystalline powder,no poison to animal,no stimulate to skin,no pollution to environment 1. Character :Di-PE is a white, odorless and crystalline powder. It is no poison to animal, no stimulate to skin, no pollution to environment. Purity’s melting point 221°C -222.5°C. Di-PE is slightly soluble in water, but little soluble in most organic solvent, it can ...