Sodium Tripolyphosphate(STPP),sodium Tripolyphosphate,detergent raw material Basic InformationMolecular formula:Na5P3O10 Molecular weight 367. ... .UsesUsed as one of the main auxiliaries for synthetic detergent,synergist for soap,water softeren,tanning agent for leather ... moisture 3~6%FP whiteness ≥92%Actives 10~24% Sodium Tripolyphosphate(STPP),sodium Tripolyphosphate,detergent raw material