Name of index

Index

Result

Na5P3O10                                                                          %

≥94

95.6

P2O5                                                %

≥57

57.7

Substances not dissolved in water %

≤0.03

0.02

As                                                  %

≤0.0003

<0.0003

Fluorides                                       %

≤0.003

0.001

Chlorides                                      %

≤0.025

0.014

Pb                                                 %

≤0.001

<0.001

Sulfates                                         %

≤0.4

0.2

Whiteness                                     %

≥90

90

PH value(1% of solution)

9.5-10.0

9.7

Appearance

White granular

Measure up