Castor Oil BP grade specification
| Appearance | A nearly colorless or faintly yellow viscid Oil, odor Slight, taste at the first bland but afterwards slightly acrid. | ||||||||
| Solubility |
Soluble in 2.5 parts of alcohol (95 per cent) miscible with dehydrated alcohol,& with glacial acetic acid. | ||||||||
| Identification |
Miscible with half its volume of light petroleum
(boiling range -40°C to 60°C), and only partially soluble in two volumes. | ||||||||
| Acetyl Value | Not less than 140 | ||||||||
| Acid Value | Not more than 2.00 | ||||||||
| Iodine Value | 82 to 90(Iodine mono chloride method) | ||||||||
| Optical Rotation | Not less than +3.5° | ||||||||
| Refractive Index | 1.477 to 1.481 | ||||||||
| Saponification ---- | 177 to 187 | ||||||||
| Color lovibond in 1 inch Y (2.2 Max) R (0.3 Max) | |||||||||
| Hydroxyl Value | - | ||||||||
| Peroxide | - | ||||||||
| Relative density | 0.953 to 0.964 | ||||||||
| Unsaponifible matter | - | ||||||||
| Foreign fatty substances | - | ||||||||
| Light absorption | - | ||||||||
| Water | 0.25 % Max. | ||||||||