Chemical Name: Sodium alginate (GB1976-80、FCCIV、USP30) Molecular Formula: C6H7NaO6 Molecular Weight: 216.12303 Cas No.: 9005-38-3 Specification: Appearance: Milk powder Vicosity: 800 mPa.s Size: 98.0% pass 80 mesh Moisture: 13.4% PH value: 6.63 Transparency: Conforms Insoluble matter in water: 0.54% Sulphated ash: 33.67% Inpurity: 18 unit/4g Heavey metal (Pb): <0.004% Lead (Pb): <0.004% Arsenic (As): <0.002% Packing: 25Kg cardboard barrel within liner, or 25Kg knitting bag plastic liner, also can be decided according to be customers demand. Storage: Kept in a well-closed, light-resistant, dry and cool place.