Physiochemical Parameters of Extracted Castor Oil in Saudi Arabia

Talab, Sarra

doi:10.21608/aprh.2019.6659.1074

Physiochemical Parameters of Extracted Castor Oil in Saudi Arabia

Document Type : Short Communication

Author

Sarra Talab ¹^{, 2}

¹ Department of Chemistry, College of Sciences, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 5701, Riyadh 11432, Kingdom of Saudi Arabia.

² Department of Chemistry, College of Applied and Industrial Sciences, University of Bahri, P.O. Box 11111, Khartoum 1660, Sudan.

10.21608/aprh.2019.6659.1074

Abstract

Objectives: This study aimed at the extraction and characterization of castor seed oil purchased from local market in Riyadh, Saudi Arabia. Methods: Castor oil was extracted from beans via extraction with n-hexane by using Soxhlet apparatus. The oil was subjected to different test for characterizations. Results: A positive test with the disappearance of the purple color of KMnO₄indicated the presence of double bond. Also the reaction of theoil with concentrated H₂SO₄ giving reddish brown color, has confirmed the presence of double bond. The physiochemical parameterswere carried out by simple reaction and the result has showed that the color of the oil is pale yellow color, the density is 1.01 g/mL, peroxide value is 12.8 Meq/K, acid number is 0.6288 mg KOH/g and saponification value is 171.105 mg/g. Conclusion: The studied castor seeds contain a high percentage of oil, which is rich in unsaturated oil.

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