Specification
Characteristics: White to slightly yellow crystals,Usually needlelike
Melting Range: 81-83℃
Loss On Drying: less than 0.5 PCT
Arsenic(As): less than0.0003 PCT
Heavy Metal: less than0.001 PCT
Content : more than97 PCT
Residue on ignition: less than0.05 PCT
Solubility : (Lg of vanillin soluble in 100ml water at
25℃,in 20ml gly, in 20 ml water at 80℃.Freely soluble in alcohol and methanol, soluble in ether).
