Oragnoleptic properties

Specification

Appearance

Clear, colorless or pale yellow amber liquid.

Odour 

Characteristic sweet odour

Solubility

Insoluble in water, soluble 1vol of solute in 3 vol of solvent

Identification: TLC:

                         GC:

Complies with the test

Physical Characteristic

Refractive index @ 20 ^oC

1.450 to 1.495

Specific gravity @ 25 ^oC

0.880 to 0.968

Optical rotation

-20 0  to +32 0

Acid value

NMT 1.00mgKOH/gm

Water content

0.30% Max

Residual solvent

None

Chiral purity

(-)-carvone: maximum 1 per cent.

Chromatographic Analysis:%

Beta carotene

42 to 78