- Characteristics:
A clear, almost colourless or slightly yellow, viscous, hygroscopic liquid.
- Solubility:
Slightly soluble in light petroleum, miscible with alcohol and with glacial acetic acid. - Absorbance:
To 1.0g add alcohol R and dilute to 100.0 ml with the same solvent. The solution shows maximum absorption at 269 +/- nm
- Optical Rotation:
+3.5 deg to + 6.0 deg - Acid Value
2.0 Max - Hydroxyl Value
Not less than 150 - Iodine Value
82 to 90 (iodine bromide method) - Peroxide value
Not more than 10.0 - Refractive Index
1.477 to 1.481
- Relative density
0.952 to 0.965 - Saponification Value
176 to 187 - Unsaponifable matter
Not more than 0.8% w/w - COMPOSITION by GLC
- Palmitic Acid: 2.0% Max
- Stearic Acid: 2.5% Max
- Oleic Acid & Isomers: 2.5% to 6.0%
(C18:1 equivalent chain length on 20,000 : 18.3) - Linoleic Acid: 2.5% to 7.0%
(C18:2 equivalent chain length on 20,000 : 18.8) - Eicosenoic Acid: 1% Max
(C20:1 equivalent chain length on 20,000 : 18.8)
- Ricinoleic Acid: 85.0% - 92.0%
(Equivalent chain length on macrogol 20,000 : 23.9) - 9,10-dihydroxystearic acid: 0.3% to 0.7%(Equivalent chain length on macrogol 20,000 : 25.8)
- Any other Fatty acid: Not more than 1.0%
- Moisture Content: 0.3% max
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