... suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, ... industry, and poultry process.3, Specifications: 1. Industrial grade Main content, %; 94.0 P2O5%≥ 57.0 Water ... of 1% water solution 9.2-10.0 2. Food grade Main content, %: 94.0 P2O5%; 57.0 ... , %; 0.0003 Fluoride, as F, %; 0.003 Chloride, as Cl %; 0.0254, Packing: Plastic-woven sack ...