Na5 P3O10, %

≥95

P2O5 %

Superior polyphosphates (NaPO3)3 ,  %

≤1

Water Insoluble,%

≤0.10

Ph of1% Solution

9.1-10.2

Loss on drying (105 °C, 1 hour), %

≤0.7

Whiteness

≥85

Bulk Density, g/cm3

>0.75

F,ppm

≤10

As,ppm

≤1

Pb,ppm

≤1

Cd, ppm

≤1

Hg ,ppm

≤1

Solubility

Freely soluble in water. Insoluble in ethanol

Appearance

POWDER

Assay(Na5P3O10)%

94.0min

P2O5 %

57.0min

Water insoluble substances%

0.10max

PH(1% solution)

9.3~10.1

Iron(as Fe) ppm

100max

Whiteness%

90min

Bulk Density

0.76~0.86

Phase I

20~40

 Na5P3O10, %

 ≥94

 P2O5, %

 ≥57

 Water insoluble, %

 ≤0.1

 Ph value (1% solution)

 9.2- 10.0

 Fe, %

 ≤0.015

 Whiteness, %

 ≥90

 Bulk density, g/ml

 0.5-0.6

 Phase I, %

 15-35