Sodium Tripoly Phosphate(STPP)
Chemical formula: Na5P3O10
Standard Executed: GB/T9983-2004(TECHNICAL GRADE)
GB25566-2010(FOOD GRADE)
keyword：
convenient transportation
Sodium Tripoly Phosphate(STPP)
Sodium Tripoly Phosphate(STPP)
CAS No.: 7758-29-4
Chemical formula: Na5P3O10
Standard Executed: GB/T9983-2004(TECHNICAL GRADE)
GB25566-2010(FOOD GRADE)
Properties:
White crystal free flowing powder, melting point at 622℃, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+, Mg2+, can soften hard water, change suspension into solution, alkalescent, without causticity.
SPECIFICATION:
| Specifications | Tech Grade | Food Grade |
| Main content (as Na5P3O10), min% | 94 | 85.00 |
| P2O5 contents, min% | 57 | 56-58.00 |
| Iron (as Fe), max% | 0.03 | 0.015 |
| pH Value (10g/L) | 9.2-10 | 9.1-10.1 |
| Lead, max% | -- | 0.0004 |
| Heavy metals (as Pb), max% | -- | 0.001 |
| Arsenic (as As), max% | -- | 0.0003 |
| Fluoride (as F), max% | -- | 0.003 |
| Water insoluble, max% | 0.15 | 0.05 |
| Whiteness, min% | 85 | 85.0 |
| Bulk Density, g/ml | 0.35-1.2 | 0.6-1.0 |
| Content of phase I | 5-50 |
Application：
As main auxiliary of synthetic wash, soap synergistic agent, Ceramic Industry, 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 inepuration 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.
Packing：
In 25kg,50kg, 1000kg net bags. By buyer’s option.
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