In this research, we report biodiesel production and viscometric analysis from mustard oil and coconut oil, by subjecting the oil to a
temperature of 65 oC through base catalyzed transesterification with the use of KOH as a catalyst. The biodiesel synthesized from mustard
oil was blended with petroleum diesel in the following percentage by volume 20 %, 40 %, 50 %, 70 % and 80 % corresponding to B20,
B40, B50, B70 and B80, respectively. The fatty acid methyl ester of mustard oil was mixed with that of coconut oil in the ratio of 80:20,
60:40 and 50:50 respectively. Viscometric analysis was carried out and the results obtained.
Key words: biodiesel; mustard oil; coconut oil; fuel blends; viscosity; petroleum diesel
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