|
Item |
Standard |
Analysis data |
|
Appearance |
Off-White powder |
conforms |
|
Specific rotation[α]20/D |
+25.0 to +27.0 Degree |
25.18º |
|
Chloride (Cl) |
Not more than 0.10% |
<0.10% |
|
Ammonium (NH4) |
Not more than 0.10% |
<0.10% |
|
Heavy metal(Pb) |
Not more than 20ppm |
6ppm |
|
Arsenic(As2O3) |
Not more than 1ppm |
＜1ppm |
|
Loss on drying |
Not more than 5.0% |
1.5% |
|
Residue on ignition(sulfated) |
Not more than 0.50% |
0.26% |
|
Assay |
98.5% to 101.0% |
99.0% |
