Key attributes
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade CAS 7758-29-4
Industrial grade products & COA meets GB/T 9983-2004 standard:
Items for detecting and analyzing | Standard value |
Main content: sodium tripolyphosphate ≥ | 96.0% |
Phosphorus pentoxide P2O5≤ | 57.0% |
0.10% | |
Fluoride (as F) ≤ | 0.007% |
Ph Value (1%) | 9.2-10.0 |
Whiteness ≥ | 90 |

Sodium Tripolyphosphate (Industrial Grade): Core Technology for Industrial Water Treatment & Detergent Building
1.Industrial Circulating Water System Stabilizer
In large-scale cooling water systems, STPP effectively chelates calcium and magnesium ions to prevent scaling on heat transfer surfaces. By forming a protective film on metal surfaces, it significantly inhibits corrosion, ensuring long-term stable system operation.
2.Key Detergent Performance Enhancer
As a core builder in synthetic detergents, it not only softens water and improves cleaning power but also disperses suspended soils to prevent redeposition. It is essential for maintaining detergent efficacy in hard water environments.
3.Efficient Dispersant for Ceramic Slurries
In ceramic industry production, STPP improves slurry rheology, prevents solid particle settling, and ensures uniform glaze distribution. This significantly enhances the molding quality and firing success rate of ceramic products.