Testing Item
|
Standard
|
Result
|
Appearance
|
White crystalline powder
|
conforms
|
Assay/%
|
98.5~101.5
|
99.5
|
Identification
|
Ninhydrin
|
conforms
|
Chloride(as Cl)/%
|
≤0.007
|
<0.007
|
Sulphate(as SO4)/%
|
≤0.0065
|
<0.0065
|
Heavy metals (as Pb)/%
|
≤0.002
|
<0.001
|
Loss on drying/%
|
≤0.2
|
0.10
|
Residue on ignition/%
|
≤0.1
|
0.04
|