Soyabean oil (USP)
 

Specification

Soybean oil (USP)

Oragnoleptic properties

Specification

Appearance

Clear, colourless or greenish-yellow transparent liquid.

Solubility

Practically insoluble in ethanol (96 per cent), miscible with light petroleum (50-70 °C).

Physical Characteristic

Beautiful

IDENTIFICATION

First Identification B

Second identification A

As per BP

Identification of fatty oils by thin-layer chromatography

Refractive index @ 20 oC

1,468 – 1,476

Specific gravity @ 25 oC

About 0.913

Acid value

NMT 0.1%

Iodine value

75 – 95

Peroxide value

10 max

Saponifiable number

187 – 197

Un saponifable matter

NMT 1.5%

Sterol composition

NMT 0.3% of brassicasterol

Water

Maximum 0.1 per cent

Heavy metals

NMT 10 pg/g

Assay (By GC)

Lauric

Myristic

Palmitic

Palmitoleic Acid

Stearic

Oleic

Linoleic

Linolenic

Arachidic

 

Behenic

Erucic

Lignceric

Less than 0.1 %

Less than 0.2 %

9.0 to 13.0%

Less than 0.3 %

2.5 to 5.0%

17.0 to 30.%

48.0 to 58.0%

5.0 to 11.0

Less than 0.1 %

Less than 0.1 %

Less than 0.1 %

Less than 0.3 %

Less than 0.5 %

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