Product description
Vanillin specification:
Odor--------------------- characteristic of vanillin
Purtiy-------------------- 99% min
Solubility ----------------(1g in 3ml of 70% ethyl alcohol or 2ml of 95% ethyl alcohol) transparent solution
Melting range---------81 - 83 degree
Loss on dry----------- 0.5% max
Resude on ignition---0.05% max
As ----------------3 ppm max
Heavy metal(as pb) --10 ppm max