... (STPP),sodium Tripolyphosphate,detergent raw material Basic InformationMolecular formula:Na5P3O10 Molecular weight 367.86CAS number 7758-29-4PropertiesWhite powder,melting ... UsesUsed as one of the main auxiliaries for synthetic detergent,synergist for soap,water softeren,tanning agent for leather ... %Actives 10~24% Sodium Tripolyphosphate(STPP),sodium Tripolyphosphate,detergent raw material