Item | Specification | Result |
---|---|---|
Appearance | White or light yellow granular powder | Yellow crystalline powder |
Assay of Lysine | NLT 98.5% | 99.00% |
Solubility | Yellow suspension at 10 gm/100 ml in water | Conform |
Specific Rotation | +25.00 ~ +27.00 | 26 |
pH | 5.0 – 6.0 | 5.7 |
L-Lysine (on dry basis)/% | ≥78.8 | 79.2 |
Specific Rotation | +18.0°~ +21.5° | +20.00° |
Loss on Drying/% | ≤1.00 | 0.5 |
Residue on Ignition/% | ≤0.30 | 0.2 |
Dust/% | ≤0.30 | 0.2 |
Ammonium Salt/% | ≤0.04 | 0.01 |
Heavy Metal (Pb)/% | ≤0.0030 | 0.002 |
Arsenic (As)/% | ≤0.0010 | 0.0002 |