A great number of members on nairaland has at one time done a research. I would love people with like minds to place abstract of their work here. Let set the ball rolling:

Industrial characteristics of palm oil-coconut oil blend and its application in the production of toilet soap is a process research. The objectives were to study the effect of different composition of palm oil-coconut oil on the industrial properties of the blend, to produce a research product of toilet soap, and to study the effect of blend composition on the quality parameters of the toilet soap produced. With increase in percent of coconut oil in the oil blend, the following results were observed: free fatty acid was between 0.48 and 0.46 with a correlation coefficient of -0.40. Saponification value was between 201 and 262 with a correlation coefficient of + 0.94. Ester value was between 200 and 261 with a correlation coefficient of +0.94. Iodine value was between 55.7 and 8.5 with a correlation coefficient of -0.99. And peroxide value was between 4.8 and 3.8 with a correlation coefficient of -0.69. Also, with increase in coconut oil composition in the blend the following was observed for the quality parameters of the toilet soap produced: total fatty matter was between 75.5 and 62.6 with a correlation coefficient of -0.98. Free alkali was between 0.78 and 1.95 with a correlation coefficient of +0.98. Moisture content was between 13.7 and 22.7 with a correlation coefficient of +0.98. pH was between 9.7 and 11.3 with a correlation coefficient of +0.88. And foam stability was between 3.6 and 1.6 with a correlation coefficient of -0.99. It was concluded that blending coconut oil and palm oil gives improved industrial characteristic of oil for toilet soap production and the optimum was found at 75 percent palm oil to 25 percent coconut oil and this gave toilet soap with the best quality parameter. It was recommended that a commercial plant should be designed and set up to extract these two oils and blended for production of toilet soap and other industrial applications.