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Item
|
Limit
|
Test result
|
Material
|
Cornstarch
|
Cornstarch
|
Appearance
|
White or colorless crystal
|
Passed
|
Assay(%)
|
≥99.0
|
99.2
|
State of solution
|
|
|
(transmittance) (%)
|
≥98.0
|
98.6
|
Chloride(cl-) (%)
|
≤0.1
|
<0.1
|
Sulfate(so42-)(%)
|
≤0.05
|
<0.05
|
Iron(Fe) mg/kg
|
≤5
|
1
|
Heavy metals(pb2+) mg/kg
|
≤1
|
<1
|
Arsenic(AS2O3) mg/kg
|
≤0.5
|
<0.5
|
Loss on drying (%)
|
≤0.5
|
0.21
|
Specific rotation[α]D20
|
+24.8°~+25.3°
|
25.0°
|
PH
|
6.7~7.2
|
7.0
|