Sodium Tripolyphosphate (STPP) - Technical Grade

Our Technical Grade Sodium Tripolyphosphate (STPP) is a high-purity inorganic phosphate produced in compliance with the GB/T 9983-2004 standard. It serves as a vital component in detergent formulations and industrial water treatment processes.

Product Technical Data (TDS)

Item Specification (GB/T 9983-2004)
CAS Number7758-29-4
Chemical FormulaNa5P3O10
Total Phosphates (as P2O5)≥ 57.0%
Water Insoluble Matter≤ 0.10%
pH (1% solution)9.5 - 10.0
Whiteness≥ 90.0%

Industrial Applications

  • Detergent Industry: Functions as a key builder to soften water and enhance cleaning power.
  • Water Treatment: Used as a sequestering agent to prevent scale formation in industrial boilers.
  • Ceramics and Mining: Acts as a high-efficiency dispersant.
  • Textile Industry: Assists in the bleaching and dyeing process by sequestering metal ions.

Packaging and Storage

Packing: 25 kg bag, 50 kg bag, or 1000 kg jumbo bag (double-layer plastic inner bags with plastic woven outer bags).

Storage: Keep in a cool, dry, and ventilated warehouse. Avoid moisture and heat exposure to maintain quality.

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