ITEM
SPECIFICATION
RESULT
1.
Characters
White crystalline powders
Conform
2.
Indentification&slubility
Pass test
Conform
3.
Clarity&color of solution
Pass test
Conform
4.
Alkalinity
Pass test
Conform
5.
Pyrogens
Pass test
Conform
6.
Water content
11.0-13.0%
12.39%
7.
Heavy metals
Not more than 5ppm
Less than 5ppm
8.
Oxalates
Not more than 100ppm
Less than 100ppm
9.
Chloride
Not more than 50ppm
Less than 50ppm
10.
Readily carbonisable substances
Pass test
Conform
11.
Sulphates
Not more than 150ppm
Less than 150ppm
12.
Purity
99.0%-101.0%
99.66%
13.
Lead
Not more than 1ppm
Less than 1ppm
14.
Arsenic
Not more than 1ppm
Less than 1ppm
15.
Mercury
Not more than 1ppm
Less than 1ppm
16.
Ph value(5% solution)
7.5-9.0
8.30
17.
Mesh size
　
12-100mesh