ITEM | STANDARD |
Appearance | Fine white to slightly yellow crystal |
Odor | Characteristic of vanilla, stronger than vanilla |
Solubility (25 ℃) | 1 gram completely dissolves in 2ml 95% ethanol, and make clear solution |
Purity (HPLC) | >= 99% |
Loss on Drying | =< 0.5% |
Melting Point (℃) | 76.0- 78.0 |
Arsenic (As) | =< 3 mg/kg |
Mercury (Hg) | =< 1 mg/kg |
Total Heavy Metals (as Pb) | =< 10 mg/kg |
Residue of Ignition | =< 0.05% |