south korea ptg ptmeg 250 polytetrahydrofuran ether/polytetramethyl ether glycol ptmeg250 molecular weight 25190-06-1
specification specifications itemproject unitunit specificationparameters appearance appearance — liquid transparent liquid molecular weight molecular weight g /mol 210 +/- 25 hydroxyl no hydroxyl value mg koh/g 477.4 ~ 606.5 acid no acid value0.991 melting point melting point (℃) ℃ – 8~-4 flash point flash point (open cup, ℃) ℃ > 280 solubility application the…
