Sodium Tripolyphosphate (STPP) Dense Powder, Slow Hydration, TG-166A

Chemical Formula: Na5P3O10

CAS No. :7758-29-4

Quality Specifications

  • STPP Content

    94.0 % min

  • P2O5 Content

    56 % min

  • Phase I Content (X-ray diffraction)

    10 - 20 %

Physical Properties

  • Appearance

    Free flowing white powder

  • Bulk Density

    650 - 850 g/l

  • pH (1% solution)

    9.3 - 10.0

  • Hydration Rate:

  • After 1 min.

    81 - 85°C (178 - 185°F)

  • After 5 min.

    86 - 90°C (187 - 194°F)

Packaging

  • 25 kg (55 lbs) bags

  • 1,100 kg (2,425 lbs) supersacks

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