... agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic ... : 1. Industrial grade Main content, %; 94.0 P2O5%≥ 57.0 Water insoluble %; 0.1 Iron, as Fe %; 0.015 pH of 1% water solution ... up in the open air. 2011Hot sale Sodium Tripolyphosphate(94.0% min)