... for detergent use 2. Chelation to metal iron Tech Grade STPP (Sodium Tripolyphosphate) 94.0%:1.Chemicals Name : Sodium Tripolyphosphate ... ; Pentasodium Tripolyphosphate; Sodium Phosphate Tripoly; Sodium Triphosphate; Sodium Tripolyphosphate; Stpp; Triphosphoric Acid, Pentasodium Salt 2. Property: Low, medium and ... demand 5.Annual output : 35,000 MT Tech Grade STPP (Sodium Tripolyphosphate) 94.0%