No

Test Item

Technical specification(%)

Analysis Results

1

Purity(%)

≥99.8

99.82

2

Sulphate(%)

≤0.01

0.0092

3

Iron(%)

≤0.0005

0.0003

4

Water  insoluble substance(%) 

≤0.05

0.003

5

Loss on drying(%) 

≤0.1

0.018

6

Chloride

0.0005

0.0003

7

Heavy metal (Pb)

0.001

0.0003

8

ammonia

0.02

0.01

9

Appearance

White crystalline substance

White crystalline substance

10

Bulk density

1.25-1.29

1.26

Conclusion

First Quality