Pale Pressed Castor Oil is a form of refined castor oil and produced from the first pressing of the castor seed. It is characteristically clear and free from suspended matter. It is light in color and low in acidity.
Characteristics | Parameters | Test method |
---|---|---|
Appearance | Clear and free of suspended matter | - |
Lovibond Color - 5 ¼" Cell (Y+5R) | 10 Yellow, 1.0 Red Max | Aocs Cc 13E – 92 |
Free Fatty Acid (FFA) | 0.75 % Max. | Aocs Cc 13e.92 |
Iodine Value | 82 – 90 | Aocs cd 1.25 |
Saponification Value | 177 – 185 | Aocs cd 3.25 |
Hydroxyl Value | 160 Min. | Aocs cd 13-60(97) |
Acid Value | 2.0% Max. | AocsCaSa – 40 |
Moisture, impurities & volatile matter | 0.25% Max. | AocsCa 2e – 25 |
Ricinoleic Acid content | 85% Min. | GC |
Specific Gravity at 15 Deg C | 0.952 – 0.965 | Aocs Cc-10G-25 |
Refractive index at 20 deg C | 1.477 to 1.481 | Aocs cc 7.25 |
Unsaponifiable matter | 1% Max. | - |
Acetyl value | 140 Min. | - |