Appearance & Description: Odorless White Crystalline Powder. Soluble in water, It tastes sweet. Identification (A.B): Meets Specifications Clarity and color of solution: Meets Specifications Loss on drying: Not more than 0.5% Melting Point: 224~227 Residue on Ignition: 0.1% Assay: 97.0% and 102.0% Conductivity: 20 s cm-1 Chloride: 0.005% Sulfate: 0.006% Calcium: Meets Specifications Barium: Meets Specifications Iron: 0.0005% Heavy Metals(as Pb): 5ppm Total impurities:1.0% Individual impurities: 0.3% Lead: 0.5mg/kg Arsenic: 0.5mg/kg Mercury: 0.1mg/kg Cd: 0.5mg/kg Total plate count: 1000cfu/g Mould and yeast: 100cfu/g E.Colin: Absent/25g Salmonella: Negative/25g COMPLIED WITH THE STANDARDS: USP40-NF35 Packing 55.115 LB Cardboard Drum.