industrial grade MPG is colorless, viscous liquid,soluble in water, and has hygroscopic properties.low toxicity moisture:<0.1%, CAS NO616-38-6molecular formulaC3H6O3appreancecolorless transparent liquiddensity(d420)1.0706melting point4°cboiling point90.3 °cflashing point17 °cviscosity(20 °c )0.664mPa.sfire point46.5 °cdissolubilitysoluble with many organic solvents like alcohol, diethyl ether ...