Lemon oil Comply to BP
 

Specification

Lemon oil (As per BP)

Physical Characteristic

Specification

Appearance

C clear, mobile, pale yellow to greenish-yellow

Odor

Characteristic odour.

Identification.

First identification B.

Second identification A.

Complying with test

Thin-layer chromatography

Relative density @ 25°C

0.850 to 0.858.

Refractive index @ 20°C

1.473 to 1.476.

Optical rotation @ 20°C

+ 57 ° to + 70 °.

Absorbance

0.20 to 0.96

Fatty oils and resinified essential oils

It complies with the test.

Residue on evaporation

1.8 to 3.6%

Solubility

It is soluble in 5 volumes of ethanol (70 per cent V/V)

Assay by GC

b-pinene

sabinene

limonene

g-terpinene

b-caryophyllene

neral

a-terpineol

neryl acetate: 

geranial 

geranyl acetate

7.0 to 17.0%

1.0 to 3.0%

56 to 78.0%

6.0 to 12.0%

Max 0.5%

0.3 to 1.5%

Max 0.6%

0.2 to 0.9%

0.5 to 2.3%

0.1 to 0.8%