... pharmaceutical materials, food ingredients and glass industry.Packing: Net food-grade polyethylene liner installed 25/50/1000kg plastic bags, jackets woven ... 25588-2010ItemSpecificationPotassium carbonate(K2CO3),% ≥99.0Chloride(KCL)Content,% ≤0.015Sulphonium compounds(K2SO4)Content,% ≤0.01Ferric(Fe)Content,% ≤0.0010Water insoluble,% ≤ ... ,mg/kg ≤2Ignition loss,% ≤0.6 Potassium carbonate food grade