Specifications: 1) Appearance: HEC is a white, yellowish-white or grayish-white powder or granule, soluble in hot and cold water to form a colloidal solution and no precipitate occurring under high or boiling point, practically insoluble in acetone, alcohol and toluene. Its article size: 40 mesh screen (≥99%) 2) Softening temperature: 135 - 140°C; apparent density: 0.35 - 0.61g/ml; decompose temperature: 205 - 21°C; moisture content equation size: 23°C; 50%rh - 6%, 84%rh - 29% 3) The viscosity of water solution is almost stable in pH2 - 12. But the viscosity of the solution will reduce out of this pH range 4) HEC is a good colloid thickener for high concentration electrolyte solutions. The solutions are stable even in the presence of other water-solubility polymers and surfactants Applications: 1) HEC is used for protecting colloid 2) HEC is used in the finished product for making the pigment and padding addit