Viscosity, mpa.s:5-100000

Drying loss, %:≤5.0

Residue on ignition, %:≤1.0

PH :4.0-8.0

Heavy metal, ppm:≤20

As, %:≤0.0002

Methoxy group, %:27.0-32.0

Appearance: White or offwhite fibrous or granular powder. Odorless.

Solubility: Swells in water to form translucent colloidal solution. Insoluble in ethanol, chloroform and ethyl ether.