MUSTARD OIL

Mustard oil is obtained by cold expression from the seeds of Brassica juncea Hook (Family Cruciferae). The plants are annual herb indigenous to Asia and Europe and cultivated in temperate climates in many countries.
Description:
It occurs as a brownish yellow or golden yellow oil with a characteristic odour and pungent taste.
Constituents:
The oil contains glycerid4es, the fatty acids of which are erucic, oleic, linoleic acids along with small quantities of saturated acids.
Physical and chemical characteristics:
Refractive Index at 40C 1-446-1.467, specific Gravity 0.914-0.920, Iodine Value: 96-110, saponification Value: 168-180, solubility: soluble in alcohol, miscible with ether, chloroform and light petroleum, insoluble in water.
Action and uses:
Mustard oil has mild rubefacient property, and employed in massages and in liniments.