Commercial Grade Castor Oil
Commercial grade castor oil is one of the standard & most common grades of castor oil, used for many industrial applications. It is also known as the industrial grade castor oil. It is a pale yellow, viscous, oily liquid insoluble in water. It contains more than 87% of a unique hydroxy fatty acid viz. Ricinoleic acid.
Industrial or commercial grade castor oil is obtained from a mixture of the first pressing and second phase of production - solvent extraction. 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.
Applications:
- Commercial grade castor oil is extensively used in the manufacture of textile chemicals
- It is used as a wetting agent for inks, coatings and adhesives
- It is used as an ingredient in pharmaceutical and cosmetic applications
- Commercial grade castor oil is used as a starting raw material for other grades of castor oil & its derivatives
Chemical, Physical Properties and Specifications:
| Appearance | Pale Dark Yellow |
| Colour in 1 Cell, Y+5R Lovibond | 30 units max. |
| Iodine Value | 82-90 |
| Saponification Value | 177-187 |
| Hydroxyl Value | 160 min. |
| Acid Value | 2.0 max. |
| Moisture, impurities & volatile matter | 0.50% max. |
| Specific Gravity @ 20° C | 0.954-0.967 |
| Refractive index @ 20° C | 1.477 to 1.481 |
| Unsaponifiable matter | 1% Max. |
| Acetyle value | 140 Min |