... Trisodium phosphate(TSP),used for water softener, detergent, antirust agent, drier, purger, developer and intensifier Trisodium phosphate(TSP) Chemical formula : Na3PO4Standard ... or colorless granular crystal. Uses : water softener, detergent, antirust agent, drier, purger, developer and intensifier.Packing : plastic bag lined woven bag ...