Oragnoleptic properties

Specification

Appearance

A colourless to pale yellow slightly viscous, liquid

Odour 

Characteristic aromatic spicy odor and reminiscent of thymol

Solubility

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

Physical Characteristic

Refractive index @ 20 ^oC

1.484 to 1.520

Specific gravity @ 25 ^oC

0.890 to 0.945

Optical rotation

-10.5 to +8.5

Acid value

NMT 2.00mgKOH/gm

Water content

0.20% Max

Low-boiling substances

Not more than 4.0% v/v

Chromatographic Analysis:%

Thymol content

Y terpinene

P cymene

Carvacrol

 28 to 58

5 to 15

12 to 30

1.5 to 9.5