Item | Standard | Test results |
Color | White or slightly yellow | Pass test |
Form | Needle crystal or crystaler | Pass test |
Smell | Sweet, sweet milk and vanilla aroma | Pass test |
Solubility | 1g sample was completely dissolved in 3mL70% (volume fraction)or 2mL95%(volume fraction) ethanol. | Pass test |
The content of vanillin | 99.5% min | 99.6% |
Melting point | 81.0?-83.0? | Pass test |
Loss on drying | 0.5%max | 0.37% |
Heavy metal(As Pb) | 10.0mg/kg min | 9.44% |
Arsenic(As) | 3.0mg/kg min | 2.55% |
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