Oragnoleptic properties

Specification

Appearance

Clear, colorless or yellow liquid.

Odour 

Characteristic cardamom fruit

Solubility

Soluble in 3 N hydrochloric acid and in 2 N nitric acid; practically

insoluble in water; insoluble in

alcohol.

Identification: TLC:

                         GC:

Complies with the test

Physical Characteristic

Refractive index @ 20 ^oC

1.461 to 1.467

Specific gravity @ 25 ^oC

0.917 to 0.940

Optical rotation

+20 0  to +40 0

Acid value

NMT 1.00mgKOH/gm

Water content

0.30% Max

Residual solvent

None

Chiral purity

(-)-carvone: maximum 1 per cent.

Chromatographic Analysis:%

1, 8 cineole

Terpinyl acetate

20.1 to 65.0

22 to 58.5