English: Sodium tripolyphosphate CAS #: 7758-29-4 
 Chemical formula: Na5P3O10 
 MW: 367.88 
 Properties: white powder, apparent density 0.35-0.90g/cm3, melting point 622 ℃, easily soluble in water, metal ions such as calcium and magnesium ions chelating capacity significantly, can soften hard water, change suspension into solution, alkaline, non-corrosive. 
 Indicators: 
 No. Specifications Industrial Grade 
 1 Main content (Na5P3O10)% 90.0-94.0 
 2 pentoxide (as P2P5 dollars)% 56.5-57.0 
 3 iron (Fe total)% ≤ 0.015 
 4 Water insoluble% ≤ 0.1 
 5 Chloride (as C1 dollars)% ≤ 
 6 Arsenic (As)% ≤ 
 7 PH (1% water solution) 9.2-10.0 
 Uses: 
 The main component of synthetic detergent. Industry as a water softener, leather tanning agent, dyeing auxiliary; paint, kaolin, magnesium oxide, calcium carbonate suspension dispersant effective treatment; wells dug clay control agents, paper with oil to prevent the agent, organic synthesis catalyst ; also used in refining petroleum products, rubber, latex storage, metal industry and pharmaceutical industry as dispersing agents, solubilization agents; in the synthetic rubber industry and poultry processing equipment also has a wide range of uses.