PENGARUH RATIO ASAM OLEAT – SORBITOL PADA PRODUK SORBITAN MONOOLEAT MELALUI PROSES ESTERIFIKASI

Anah, Lik

Jurnal technoscientia
Academia Ista Vol 12 No 01 Agustus 2007

The synthesis of sorbitan monooleat was conducted at laboratorium scale by es-terification of sorbitol and oleic acid using p-toluene sulfonic acid as catalyst. The esterifi-cation process was carried out at operation condition : atmospheric pressure; stirred; 7 hours of reaction; 180oC and concentration of catalyst 2.5 % based on sorbitol. The ratio of oleic acid – sorbitol concentration used in this experiment was varried at 0.75; 1.0; 1.25 and 1.50. A sample was drawn off every 10 minutes during the first hour reaction and e-very 30 minutes during the next six hours. The analysed of sample was conducting by de-termining acid value to calculate the sorbitan monooleat product. The result of the experi-ment showed that the optimum ratio of oleic acid - sorbitol was reached at 1.0 with sorbi-tan monooleat production of 72.939 % in 60 minutes with acid value 46.132 and 82.93-5 % in 420 minutes with acid value 30.909.