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DOI Prefix 10.20431 |
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International Journal of Advanced Research in Chemical Science
Volume-1 Issue-4, 2014, Page No:14-22
Extraction, Characterization of African Pear (Dacryodes Edulis) Oil and its Application in Synthesis and Evaluation of Surface Coating Driers
Ibanga O.Isaac1,Okon D.Ekpa2, Udofot J.Ekpe3
1.Department of Chemistry, Akwa Ibom State University, Ikot Akpaden, P.M.B 1167, Uyo, Akwa Ibom State, Nigeria
2.Department of Pure and Applied Chemistry, University of Calabar, P.M.B 1115, Calabar, Cross River State, Nigeria
2.Department of Pure and Applied Chemistry, University of Calabar, P.M.B 1115, Calabar, Cross River State, Nigeria
Citation : Ibanga O.Isaac,Okon D.Ekpa,Udofot J.Ekpe, Extraction, Characterization of African Pear (Dacryodes Edulis) Oil and its Application in Synthesis and Evaluation of Surface Coating Driers International Journal of Advanced Research in Chemical Science. 2014;1(4):14-22.
Abstract
The fatty composition of African pear oil (APO) revealed that the oil is rich in saturated fatty acids, having palmitic acid (44.31%), stearic acid (8.07%), and oleic acid (42.45%) as the most abundant saturated and unsaturated fatty acids respectively. It iodine value was determine as 45.050 gI2/100g which classified it as non-drying oil. The synthesis of surface coating driers was carried out by precipitation method using APO, palm kernel oil (PKO), sodium hydroxide, lead (II) trioxonitrate (V), cobalt (II) chloride hexahydrate and anhydrous calcium chloride. The colour of lead, cobalt and calcium driers of APO and PKO were found to be yellow, purple and white respectively. The specific gravity of PKO driers were greater than those of APO driers. The prepared driers and the commercial driers were used separately in the formulation of white gloss alkyd paints and the properties of APO driers were found to be better than those of PKO driers and were also found to be comparable with commercial samples.
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