Oragnoleptic properties

Specification

Appearance

Colourless to heavy viscous brown liquid

Odour 

Pleasant and  characteristics vanillin aroma.

Solubility

Insoluble in water, soluble 1 vol. of solute in 3vol. of solvent (96%)

Physical Characteristic

Refractive index @ 20 ^oC

1.420 to 1.500

Specific gravity @ 25 ^oC

0.880  to 1.325

Optical rotation

-26.5 to +22.5

Acid value

NMT 2.00mgKOH/gm

Water content

0.20% Max

Chromatographic Analysis:%

Vanillin content

 2.5 min