|
Test item
|
Specification
|
|
|
Reagent grade
|
Pharmaceutical grade
|
|
|
Appearance
|
Conform
|
Conform
|
|
Assay [K2CO3] /%
|
≥99.0
|
≥98.0
|
|
Clarify degrees test
|
Conform
|
Conform
|
|
Dry weightlessness
|
≤1.0
|
≤2.0
|
|
Chloride (Cl)/%
|
≤0.003
|
≤0.01
|
|
Sulfur compounds (SO4) %
|
≤0.003
|
≤0.01
|
|
N %
|
≤0.001
|
≤0.01
|
|
Phosphate and Portland /%
|
≤0.005
|
≤0.02
|
|
Sodium (Na) /%
|
≤0.05
|
≤0.10
|
|
Magnesium (Mg) /%
|
≤0.002
|
≤0.005
|
|
Calcium (Ca) /%
|
≤0.002
|
≤0.02
|
|
Iron (Fe) /%
|
≤0.0005
|
≤0.002
|
|
Copper (Cu) /%
|
≤0.0005
|
≤0.001
|
|
Pb/%
|
≤0.0005
|
≤0.001
|
