Sodium Tripolyphosphate(STPP),sodium Tripolyphosphate,detergent raw material Basic InformationMolecular formula:Na5P3O10 Molecular weight 367.86CAS number ... one of the main auxiliaries for synthetic detergent,synergist for soap,water softeren,tanning agent for leather making,auxiliary for dyeing ... ≥92%Actives 10~24% Sodium Tripolyphosphate(STPP),sodium Tripolyphosphate,detergent raw material