Sodium tripolyphosphate

• Category :

  Inorganic chemicals/Inorganic salts

• Synonyms :

  pentasodium triphosphate;Pentasodium Tripolyphosphate;Sodium Phosphate Tripoly;STPP;Triphosphoric acid, pentasodium salt;Pent-sodium Phosphate;Sodium triphosphate;Sodium Tripolyphos;sodium phosphate (3:1);

• CAS NO :

  7758-29-4

• EC NO :

  231-838-7

• Molecular Formula :

  Na₅P₃O₁₀

• Molecular Weight :

  367.86413

• Main Specifications :

  White powder, surface density: 0.35-0.9g/cm3, melting point:622℃, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.

• InChI :

  InChI=1S/H5O10P3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h(H,7,8)(H2,1,2,3)(H2,4,5,6)/p-5

• Packing :

  25kg-50kg woven bag lined with plastic, stored in dry and draughty place.

• Product description :

  No. Item Top quality First quality 1 Main content(base on Na5P3O10) % ≥ 94 90 2 Phosphorus pentoxide % ≥ 57 56.5 3 Insoluble substance in water % ≤ 0.04 0.08 4 Iron content % ≤ 0.006 0.007 5 Whiteness % ≥ 92 90 6 Granularity 1mm test sieve % 5 5 7 Drying loss % ≤ 0.5 0.5 8 PH value(1% aqueous solution) 9.2—10.0 9.2—10.0 9 Content of type I 10 Apparent density g/cm3

• Uses :

  Mainly used as additive in synthesizing detergent. Used as soap synergist, water softener, pretanning, dyes auxiliary and oil proof etc..

• Molecular Structure :