Korea PTG PTMEG 650 polytetrahydrofuran ether/polytetramethyl ether glycol PTMEG650 molecular weight 25190-06-1

                                                                              specification specifications itemproject unitunit specificationparameters appearance appearance — transparent liquid or white waxy solid at low temperature room temperature 23transparent liquid (white waxy solid) molecular weight molecular weight g /mol 650 +/- 25 hydroxyl no hydroxyl value mg koh/g 166.2 ~ 179.5 acid no ℃ 0.984 melting point melting point (℃) ℃ 23 –…