... Used as main auxiliary of synthetic wash, soap synergistic agent, 2.also widely used in gum synthesis STPP Chemical name:Sodium tripolyphosphate Chemical formula ... )9.2--10.09.2--103. Usage: Used as main auxiliary of synthetic wash, soap synergistic agent, water softener ... , leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium ...