... 2,94%, white powder 3,Used as main auxiliary of synthetic wash, soap synergistic agent.. STPP Sodium TripolyphosphatePacking and ... of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension ... kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in ...