%A Nirwana, Nirwana %A Alimuddin, Alimuddin %A Erwin, Erwin %D 2019 %T PEMBUATAN DAN PEMANFAATAN SILIKA DARI PASIR PANTAI SEBAGAI BAHAN PEMUCAT UNTUK MENURUNKAN KADAR ASAM LEMAK BEBAS PADA CPO (CRUDE PALM OIL) %K %X A study on the manufacture and utilization of silica from coastal sand as a pale ingredient to lower free fatty acid levels has been conducted. The present invention includes sample preparation, sodium silicate (Na 2 SiO 3 ), silica gel formation, silica gelation and Crude Palm Oil (CPO) test result of bleaching. The results showed that the silica of coastal sand was potential as a crude palm oil (CPO) ingredient with the ability to decrease the free fatty acid and color brightness, on the addition of 1 gram of silica obtained result of free fatty acid content analysis is 24,35 % with decreased color brightness of 0,27% and on the addition of 2 gram of silica obtained result of free fatty acid content analysis is 42,49 % with decreased color brightness of 2,8%.  Keywords: Sand Beach Sebatik Island, Silica, Bleaching, Crude Palm Oil (CPO), Free Fatty Acid Levels . %U http://jurnal.kimia.fmipa.unmul.ac.id/index.php/prosiding/article/view/755 %J PROSIDING SEMINAR NASIONAL KIMIA %0 Journal Article %P 46-50%8 2019-02-01