Complaint
Items | Specification |
Appearance | White to slightly yellow crystals,Usually needle like |
Odor | Characteristics Of Vanilla |
Solubility | 1G of Vanillin soluble in 100ml water,3ml 70% or 2ml 95% ethanol at 25ºC,in 20ml glycerol, in 20ml water at 80ºC,soluble in chloroform, ether |
Melting point | 81.0-83.0ºC |
Purity (By GC) | ≥99.5% |
Loss on drying | ≤0.5% |
As | ≤0.0003% |
Heavy metals(based on Pb) | ≤0.001% |
Residue on ignition | ≤0.05% |
