Analytical Items | Standard |
Appearance | White crystalline powder |
Identification | IR |
Appearance of solution | Clear and Colorless |
Specific rotation | -26.0°~-29.0° |
pH | 2.3~2.6 |
Loss on drying | ≤ 0.5 % |
Residue on ignition | ≤ 0.5% |
Heavy Metals | <10 PP m |
Pb | ≤ 3 PP m |
As | ≤ 1 PP m |
Cd | ≤1 PP m |
Hg | ≤0.1 PP m |
Assay | 98.5%~102.0% |