Rosemary oil Comply to BP
 

Specification

Rosemary oil (As per BP)

Physical Characteristic

Specification

Appearance

Clear, mobile, colourless to pale yellow liquid

Odor

Characteristic odour.

Identification.

First identification B.

Second identification A.

Complying with test

Thin-layer chromatography

Relative density @ 25°C

0.895 to 0.920.

Refractive index @ 20°C

1.464 to 1.473.

Optical rotation @ 20°C

- 5° to + 8°.

Acid value

Maximum 1.0.

Fatty oils and resinified essential oils

It complies with the test.

Solubility

Miscible with alcohol and with methylene chloride.

Assay by GC

a-pinene

Camphene

b-pinene

b-myrcene 

limonene: 

cineole

p-cymene 

camphor

bornyl acetate

a-terpineol

Borneol

verbenone

18 to 26.0%

8.0 to 12.0%

2.0 to 6.0%

1.5 to 5.0%

2.5 to 5.0%

16 to 25.0%

1.0 to 2.2%

13 to 21.0%

0.5 to 2.5%

1.0 to 3.5%

2.0 to 4.5%

0.7 to 2.5%