Commercial grade castor oil is one of the standard and most common grades of castor oil, used for many industrial applications. It is also known as the industrial grade castor oil. Commercial Castor Oil is produced by crushing steam cooked Castor seeds in expeller. Oil collected from the expeller tray is collected in settling tank is filtered for removing physical impurities. A dark yellow viscous oil in appearance with Colour: 30 Max (Y+5R), F.F.A: 2.00% Max, M.I.V: 0.50% Max. It is viscous, oily liquid insoluble in water. It contains more than 87% of a unique hydroxyl fatty acid, Ricinoleic acid. It can act as a substrate for the preparation of other grades of castor oil including DCO, FSG castor oil, Turkey red oil and Pale pressed castor oil etc. Appearance Pale Dark Yellow Moisture 0.50 Max. Free Fatty Acid (%as oleic) 2 Max. Iodine Value 82 - 90 Acid Value 4 Max. Saponification Value 177 - 185 Hydroxyl Value 158 - 163 Unsaponifiable Matter 0.70 Max. Colour in 1 Cell, Y+5R Lovibond 30 Max.
