Evening Primrose oil
 

Specification

Evening Primrose oil

Oragnoleptic properties

Specification

Appearance

Yellow to pale yellow clear liquid

Odour 

Characteristic odor

Solubility

Miscible with light petroleum ether

Physical Characteristic

 

Refractive index @ 20 oC

1.450 to 1.480

Specific gravity @ 25 oC

0.900  to 0.930

Acid value

NMT 2.00mgKOH/gm

Iodine value

120 to 165

Peroxide value

10 max

Water content

0.30% Max

Saponifiable number

170 to 265

Un saponifable matter

1.5% max

Chromatographic Analysis:%

Palmitic acid

Stearic acid

Oleic acid

Linoleic acid

Linolenic acid

Arachidic acid

 

3.50 to 14,0 

2.0 to 7.5

12 to 35.5

40 to 75

8.0 to 18

1.1 to 3.5

Storage: To keep the material cool and dark palace below at 25°C