Specifications:
|
Check item
|
definition
|
Result
|
|
Characters
|
A white,crystalline powder,soluble in water,practically insoluble in alcohol.when heated in the dry state or in solution,it gradually changes into sodium carbonate.
|
Passed the test
|
|
Identification
|
It gives reactions of carbonate,bicarbonate and sodium
|
Passed tests
|
|
Appearance of solution
|
Clear and colourless
|
Passed test
|
|
Ammonium
|
≤0.002%
|
0.001%
|
|
Arsenic
|
≤0.0002%
|
0.00006%
|
|
Calcium
|
≤0.01%
|
0.005%
|
|
Heavy metals
|
≤0.001%
|
0.0003%
|
|
Iron
|
≤0.002%
|
0.0006%
|
|
Carbonate PH
|
≤8.6
|
8.3
|
|
Chloride
|
≤0.015%
|
0.01%
|
|
Sulfate
|
≤0.015%
|
0.004%
|
|
Assay
|
≤99.0-101.0%
|
100.2%
|
Specifications:
|
Check item
|
definition
|
Result
|
|
Characters
|
A white,crystalline powder,soluble in water,practically insoluble in alcohol.when heated in the dry state or in solution,it gradually changes into sodium carbonate.
|
Passed the test
|
|
Identification
|
It gives reactions of carbonate,bicarbonate and sodium
|
Passed tests
|
|
Appearance of solution
|
Clear and colourless
|
Passed test
|
|
Ammonium
|
≤0.002%
|
0.001%
|
|
Arsenic
|
≤0.0002%
|
0.00006%
|
|
Calcium
|
≤0.01%
|
0.005%
|
|
Heavy metals
|
≤0.001%
|
0.0003%
|
|
Iron
|
≤0.002%
|
0.0006%
|
|
Carbonate PH
|
≤8.6
|
8.3
|
|
Chloride
|
≤0.015%
|
0.01%
|
|
Sulfate
|
≤0.015%
|
0.004%
|
|
Assay
|
≤99.0-101.0%
|
100.2%
|