HEC, having functions of thickening, bonding, emulsifying, dispersing, stabilizing, water retaining, and film forming. ... in solution 6.0-8.5AppearanceGranule or powderTable 2. Viscosity Specification of HEC Solution TypeSolution Viscosity (Brookfield at 25°C,cps )1 ... - 150 The viscosity can be adjusted according to the requirements of the customers. Hydroxyethyl Cellulose HEC