Sodium Tripolyphosphate (Na5P3O10)

 

1. Basic information:

1) Chemical name: Sodium Tripolyphosphate; STPP

2) Molecular formula: Na5P3O10

3) Molecular weight: 367.86

4) HS CODE: 28353100

 

2. Quality standard:

Commodity: Sodium Tripolyphosphate (STPP)

Items Standard value

Main content (Na₅P₃O₁₀) ≥ 90%

P₂O₅ ≥ 56.5%

Fe ≤ 0.015%

Whiteness ≥ 85.0%

Surface Density 0.6—0.9

PH(1%water solution) 9.2—10.0

Water insoluble ≤ 0.10%

Particle Size (18) ≥ 90.0%

 

3. Use:

Sodium Tripolyphosphate (STPP), it mostly be used as the material of detergent, water treatment, mining, oil, metallurgy and paper making, etc.