... history. 3.Professional import and export services Properties: It is white powder or colorless crystals, easily deliguescence in the air, ... for bulk agent in food, fire extinguishing agent, ceramics, pharmaceutical materials, food ingredients and glass industry.Packing: Net food-grade polyethylene liner installed ... kg ≤10Arsenic(As)Content,mg/kg ≤2Ignition loss,% ≤0.6 Potassium carbonate food grade