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 obtained from the seeds of Ricinus Communis & have pale yellow color, 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:
Chemical, Physical Properties and Specifications:
Properties |
Specification |
Appearance |
Pale Dark Yellow |
Colour in Lovibond 1” Cell |
30 units max. (regular) |
Expressed As (y+5r) |
20 Unit Max (special) |
Iodine Value |
82 – 90 |
Saponification Value |
177 – 187 |
Hydroxyl Value |
160 min.mgKOH/g |
Acid Value |
2.0 max. |
Moisture, impurities & volatile matter |
0.50% max. |
Free Fatty Acid (FFA) |
2.00 % Max. |
Specific Gravity @30 Deg C/30 Deg C |
0.954 – 0.967 |
Refractive index @ 40ºC |
1.477 to 1.481 |
Unsaponifiable matter |
1% Max. |
Viscosity @ 20 Deg C |
950 Cp |
Acetyle value |
140 Min |
Packing:
