Sodium Tripolyphosphate CAS Number: 7758-29-4 It can be used in Detergent and Ceramic industry, food additives. Packing in Quick DetailsType: ... CAS Number: 7758-29-4 It can be used in Detergent and Ceramic industry, food additives. Packing in 25kg woven bagSTPPMolecular ... Uses: Used as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener, tanning agent for leather ...