Refined Castor Oil (F.S.G. / B.S.S.)
First Special Grade (F.S.G.) Castor Oil is bleached to British Standards Specifications (B.S.S.) It is a yellow viscous liquid free from suspended matter and is insoluble in water.
Commercial Grade Castor Oil is refined by undergoing bleaching and filtering process. Bleaching is done using bleaching earth and activated carbon, which helps to reduce colour and moisture content. The refining process removes excess impurities from Castor Oil such as FFA (Free Fatty Acids), colloidal matter and phospholipids. Refining Castor Oil also extends the shelf life of the Castor Oil.
| Sr. No. | Characteristics | Specifications |
|---|---|---|
| 1 | Appearance | Pale Yellow, brilliantly clear, viscous liquid |
| 2 | Ricinoleic acid | Min. 85% |
| 3 | Free Fatty Acids (as oleic) | Max. 1.0% |
| 4 | Acid value | Max. 2.0% |
| 5 | Moisture | Max. 0.25% |
| 6 | Hydroxyl value (mg KOH/gm) | 160 – 163 |
| 7 | Colour on Lovibond in 1” cell (Y + 5R) | Yellow – 20.0 Max Red – 2.0 Max |
| 8 | Iodine value (Wij’s) gm I₂/100 gm | 82 – 90 |
| 9 | Saponification value mg KOH/gm | 177 – 185 |
| 10 | Unsaponifiable matter | Max. 1.0% |
| 11 | Specific Gravity @ 30°C | 0.954 – 0.960 |
| 12 | Viscosity @ 25°C | 710 to 950 cst (680-920 cps) |
| 13 | Refractive Index @ 40°C | 1.470 – 1.481 |
| 14 | Edible / Non Edible | Non Edible |
COSMETIC – It is used in formulation of beauty products
MEDICINAL – It is used as a lubricant in vitamin and mineral tablets.
INDUSTRIAL – In petroleum emulsification – hydraulic and brake fluid, Paints, Inks, Varnish, Rubbers
It is recommended that Refined Castor Oil (F.S.G./B.S.S.) be kept in a cool, dark place to maintain freshness and achieve maximum shelf life.
Packing – 950 KG IBC tanks I 200 KG MS/HDPE Barrels I 50 KG HDPE Carboys
