Industrial STPP Solutions – Scale Inhibition, Metal Treatment & Detergent Applications
Typical Applications
| Application | Function | Recommended Form |
| Metal Surface Treatment (Phosphating/Cleaning) | Supplies phosphate radicals for phosphating film; emulsifies oils & grease | Powder |
| Industrial Detergents & Cleaners | Water softening + alkaline buffering + emulsification – boosts detergency | Granular (low dust) |
Recommended Product Specification
Industrial Grade Sodium Tripolyphosphate (STPP)
| CAS No. | 7758-29-4 |
| Main content (Na₅P₃O₁₀) | ≥94% |
| P2O5 content | ≥56.5% |
| Water insolubles | ≤0.1% |
| Iron (Fe) content | ≤0.015% |
| Whiteness | ≥90 |
| PH (1% solution) | 9.2–10.0 |
| Packaging | 25kg woven bag / 1000kg jumbo bag / customized |
Available variants:
| Powder with Density | 0.75-1 |
| Granular With Density | 0.4-0.5 |
| Granular with Density | 0.5-0.75 |
Recommended Product Specification
Industrial Grade Sodium Hexametaphosphate (SHMP)
| Parameter | Value |
| CAS No. | 10124-56-8 |
| Main content (as P₂O₅) | ≥68% |
| Total phosphate (as P₂O₅) | ≥68% |
| Iron (Fe) content | ≤0.03%/0.05% |
| Water insolubles | ≤0.1% |
| pH (1% solution) | 5.8 – 7.3 |
| Appearance | White powder / granular |
| Packaging | 25kg woven bag / 1000kg jumbo bag / customized |
Available variants: Low-iron Type, fine powder Type, Flake Type.
Key Customer Benefits
-Effective scale prevention – Ca/Mg chelation capacity ≥300 mg CaCO₃/g, extends equipment cleaning cycles
- High batch-to-batch consistency – Main content variation ≤±1%, ideal for continuous processes
- Full export compliance documentation – COA, MSDS, non-hazardous certificate, origin certificate, destination customs support
- Flexible supply chain – Small trial orders, container consolidation, long-term price-lock agreements
Compliance & Documentation Support
| Standard | GB/T 9983-2004 |
| Third-party testing | SGS / BV available upon request |
| Documents provided | COA, MSDS, packing list, B/L, origin certificate |
| Certifications (if available) | ISO 9001 |
Call to Action
Need industrial STPP samples or technical confirmation?
Contact us for COA and quotation
yifriendship@sino-phosphate.com
Submit your inquiry online – reply within 24 hours
FAQ
Q: What’s the difference between STPP and SHMP in industrial water treatment?
A:STPP has stronger Ca/Mg chelation and higher alkalinity – better for high-hardness water. SHMP offers better dispersion. We can advise on formulation.
Q: What’s the difference STPP powder and Granular?
A:All the items are same except the physical appearance.Normally powder STPP applied for detergent industry,Granular applied for Ceramic,Mining Industry.