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FDA Registered Castor Oil, All Natural
cGMP Proven Quality CASTOR OIL PALE PRESSED; U.S.P. |
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GENERAL INFORMATION
Castor Oil is a pale-colored oil extracted from castor oil beans, the seeds of the castor-oil plant. The shrub is
a flowering plant up to 12 m high, native to tropical Africa and Asia. It is cultivated widely in the tropics for its
seeds, from which castor oil is extracted. The oil, when used in cosmetics, acts as a humectant; it attracts
and retains moisture to the skin. Castor oil is often used in lipsticks. It is also a thickener and an emollient.
Castor oil it forms a hard film when dry. Medically, it is used as a laxative and industrially it it is used as a drying oil in paints and varnishes.
In summary, castor oil is today used in plastics, textiles, paints, cosmetics, and a number of inks and
industrial adhesives. One reason for the current popularity of castor oil is due to the fact that its numerous chemical derivatives are "renewable sources, bio-degradable and eco-friendly."
GENERAL SPECIFICATIONS
Castor Oil is the fixed oil obtained from the seed of Ricinus communis Linné (Fam. Euphorbiaceae).
TEST |
METHOD |
RANGE |
Specific gravity @ 25°C |
USP |
0.957-0.961 |
Iodine value |
USP |
83 - 88 |
Saponification value |
USP |
176 - 182 |
Free fatty acids |
USP |
< 3.5 mL of 0.10 N NaOH |
Heavy metals, Method II |
USP |
0.001% max |
Hydroxyl value |
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160 - 168 |
Distinction from most other fixed oils |
USP |
passes |
Color Gardner |
AOCS Td la-64 |
3 max |
Appearance |
Characteristically clear and free from suspended matter |
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Odor |
Slight, characteristic |
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TYPICAL FATTY ACID COMPOSITION (%) |
C16:0 |
0.8 - 1.8 |
C18:2 |
3.5 - 6.8 |
C18:0 |
0.8 - 2.0 |
Ricinoleic |
82 - 95 |
C18:1 |
3.0 - 6.0 |
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(Fatty acid composition is provided for informational purposes only and is not part of a standard batch analysis.) |
