Item of inspection

Standard parameters

Results of analysis

Result

Outlook

white or little yellow crystal material

white crystal material

Qualified

Content of calcium

≥98％

98.28％

Qualified

Total content of calcium

≥30％

30.36％

Qualified

Content of water

≤0.5％

0.23％

Qualified

Ph value

(10% soluted water)

6.5-8

6.7

Qualified

Content of heavy metals

20 ppm

8 ppm

Qualified

Content of AS

20ppm

6ppm

Qualified

Content of Cd

≤1ppm

1ppm

Qualified

Content of Pb

≤4ppm

3ppm

Qualified

Content of Hg

≤1ppm

1ppm

Qualified

residue and turbidity

≤1％

0.26％

Qualified

insoluble matter

< 0.5%

0.3%

Qualified