Several reports on the esterification of palmitic acid showed that various solid acid catalysts such as WOx loaded on ZrO2, ZrPO4 loaded on WOx, sulfonated chitosan, silica, mesoporous silica and niobia supported heteropolyacid and ammonium salt of 12-tungstophosphoric acid were found to have good catalytic activity; however, appreciable yields of methyl palmitate could be achieved at higher acid to methanol ratio (1:30 to 1:270), reaction temperature (64–200 C) and reaction time of 24–30 h over 10–100 wt% catalyst.