| Assay (perchloric acid titration, calculated on dried substance) |
99.0 - 101.0 % |
| Identity (IR-spectrum) |
passes test |
| Appearance |
white to almost white, crystalline powder |
| Appearance of solution (50 g/l, hydrochloric acid 1 mol/l) |
clear and colorless |
| Spec. rotation (α 20/D, 20 g/l, water, calc. on dried substance) |
-33,0 to -35,5 |
| Chloride (Cl) |
≤ 200 ppm |
| Sulfate (SO₄) |
≤ 300 ppm |
| Heavy metals (as Pb) |
≤ 10 ppm |
| Al (Aluminium) |
≤ 5 ppm |
| As (Arsenic) |
≤ 5 ppm |
| Ca (Calcium) |
≤ 10 ppm |
| Co (Cobalt) |
≤ 5 ppm |
| Fe (Iron) |
≤ 5 ppm |
| K (Potassium) |
≤ 5 ppm |
| Mg (Magnesium) |
≤ 5 ppm |
| Na (Sodium) |
≤ 50 ppm |
| Zn (Zinc) |
≤ 5 ppm |
| Ninhydrin-positive substances (LC) (any ninhydrin-positive impurity) |
≤ 0.2 % |
| Ninhydrin-positive substances (LC) (ammonium (570 nm)) |
≤ 0.02 % |
| Ninhydrin-positive substances (LC) (total impurities) |
≤ 0.5 % |
| Loss on drying (105 °C; 3 h) |
≤ 0.3 % |
