Sodium tripolyphosphate

• Post Date:

  Nov 23,2018

• Expiry Date:

  May 22,2019

• Detailed Description:

  Cas No. :7758-29-4 Specs:99%min.
  Sodium tripolyphosphate
  STPP
  CAS No: 7758-29-4
  Molecular weight: 367.86
  
  1, Properties:
  White microdot powder with luster, melting point at 622 o C, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca 2+, Mg 2+, can soften hard water, change suspension into solution, slightly alkaline, without causticity.
  
  2, Usage:
  Used as main auxiliary of synthetic wash, soap synergistic agent, water softener, leather pre-tanning agent, dye auxiliary agent, and dispersant of suspension such as paint, kaolin, magnesium oxide, calcium carbonate drilling mud, preservative agent for paper making, organic synthesis catalyzer, and used in epuration of petroleum product, gum latex storage, as dispersant, solvent in metal industry and pharmaceutical industry, also widely used in gum synthesis, foodstuff industry, and poultry process.
  
  3, Specifications:
  
  1. Industrial grade
  Main content, %; 94.0
  P2O5%≥ 57.0
  Water insoluble %; 0.1
  Iron, as Fe %; 0.015
  pH of 1% water solution 9.2-10.0
  
  2. Food grade
  Main content, %: 94.0
  P2O5%; 57.0
  Water insoluble %; 0.05 M
  Iron, as Fe %; 0.01
  pH of 1% water solution 9.5-10.0
  Heavy metal, as Pb %; 0.001
  Arsenic, as As, %; 0.0003
  Fluoride, as F, %; 0.003
  Chloride, as Cl %; 0.025
  
  4, Packing:
  Plastic-woven sack with polythene inner bag; Net weight 25kg, 50kg or 1000kg; Keep away from water or moisture, do not pile up in the open air.
  
  5, Delivery: Within one weeek after payment received
  

• CAS Registry Number:

  7758-29-4

• Synonyms:

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

• Molecular Formula:

  Na₅P₃O₁₀

• Molecular Weight:

  367.86413

• Molecular Structure:

  

• Hazard Symbols:

   Xi:Irritant;
  

• Risk Codes:

  R36/37/38:;
  

• Safety Description:

  S24/25:;
  

• Company:

  Hefei TNJ Chemical Industry Co.,Ltd.     [ China ]        

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  Sophia

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