TEM | STANDARD |
Product Name | L-Aspartic acid |
Appearance | White crystal powder |
Assay (C3H7NO2) | 98.5%~101.0% |
Specific rotation | +24.8°~+25.8° |
Chloride | ≤0.02% |
Sulphate | ≤0.02% |
Ammonium | ≤0.02% |
Loss on drying | ≤0.20% |
Residue on ignition | ≤0.10% |
Other amino acids | None |
pH | 2.5~3.5 |
Transmittance | ≥98.0% |
Arsenic | ≤1ppm |
Heavy metals | ≤10ppm |
Iron | ≤10ppm |