PRODUCT SPECIFICATION-PEG-4000 1.Appearance- White or almost white solid with a waxy or parafin-like appearance. 2.Avg. Molecular Weight- 3800 - 4300 3.Mositure- NMT 0.5%. 4.pH value- 6.0 - 7.0 5.Hydroxyl Value- 26 - 29.5 6.Viscosity- 110 - 158 7.Dioxane (ppm)- < 10 8.Pour Point- 54 - 59 9.Surface Tension ( mN/m@20° C )- 54.4