Name of commodity

Sodium tripoly phosphate

     (STPP)

Grade

Tech grade

 Light

Inspection standard

GB/T9983-2004

Packing

In 25kg PP bag

Specifications

National standard

Inspection results

Assay Na5P3O10 %  

94.0 min

P2O5 %

56.5Min.

Water Insoluble Matter %

0.1 Max.

Iron(Fe) %

0.015Max.

PH value(1% water solution)

9.2 -10.0

Whiteness%

90 Min.

Phase I

10-30

Loss on Ignition

0.01

Density

0.35-0.55