Evaluation of physicochemical and biodegradability properties of selected Nigerian non-edible oilseeds as potential cutting fluids

This paper reports evaluation of physicochemical and biodegradability properties of selected non edible nigerian oilseeds as a potential cutting fluid. oil extraction process was carried on the oilseeds,with physicochemical parameters and biodegradability of the extracts were equally assessed. the established physicochemical parameters were percentage oil yield (5.58-61.8%),specific gravity (0.86-0.94),acid value (2.89-18.2 mgkoh/g),iodine value (15.7-104 mg iodine/g),peroxide value (1.35-10.9 mg/g oil),saponification value (173-286 mg koh/g) and viscosity (37.9-53.1centipoises),while biodegradability ranged between (50.0-63.8%) in comparison with the mineral oil with values less than 20%. based on this study,the oil extracts of caesalpinia bonduc and calophyllum inophyllum appeared to be the most suitable as potential cutting fluids for further formulation studies and machining trials. © 2015,pcsir-scientific information centre. all rights reserved.