1 Product Name: Sodium tripolyphosphate
2 English name:STPP   

3 Alias: sodium nitrate 

4 Molecular formula: Na5P3010 
5 Molecular Weight: 367.86 (according to) 
6 Features: White granular or powder, showing the density 0.35-0.90g/cm3, melting point 622 ℃. Soluble in water, alkaline aqueous solution, 1% aqueous solution PH 9.7. In the water gradually hydrolyzed phosphite, has a good capacity of complexing metal ions. With calcium, magnesium, iron and other metal ion complexation, generating soluble complexes. Be able to soften hard water. As an inorganic surface active agent, has a certain organic surface-active agent in nature.

7 Uses: mainly used as additives, synthetic detergent, soap, soap synergist synergist and the prevention of and the prevention of fat deposition and the effect of soap cream. Of oil emulsion of fat has a strong role of the buffer liquid soap can be used to adjust the PH value, industrial water softener, leather pre-melted agents, dyeing auxiliaries, paint, kaolin, magnesium oxide, calcium carbonate and other industries in the acid suspension system, when dispersants, drilling mud dispersants, paper industry as anti-oil agents.
Product Quality: meet GB9983-2004 standard.

8 Technical Requirements:

Index Name	Indicators
	Excellent product	First-class product	Qualified
Sodiumtripolyphosphate (Na5P3O10)% ≥	96	90	85
Phosphorus pentoxide (P2O5)% ≥	57	56.5	55.0
Water Insoluble% ≤	0.10	0.10	0.15
Iron (Fe)% ≤	0.007	0.015	0.30
PH value (1% solution)%		9.2-10.0
Whiteness% ≥	90	80	70
Particle size 1.00mm sieve residue test sieve% ≤	5.0