PEMANFAATAN TULANG IKAN PATIN SEBAGAI BAHAN BAKU PRODUKSI ASAM PHOSPAT

Patin fish bone has 10% proportion of the whole fish body that is one of waste from processing fish. It has 14% calcium phosphate from the whole fish body. Making phosphate acid from patin fish bone aim to extract the phosphate acid and count its levels that can be produced with the temperature and the concentration solvent as the variables. The processes used in this research is extraction with H2SO4 as the solvent. 10 grams of 250 micron patin fish bone powder inserted in three-neck flask and added with 100 ml H2SO4. It was heated in water's boiling point at certain time. Extraction results obtained then analyzed the water and acid phosphate levels formed from patin fish bone with titration. The higher sulfuric acid concentration used, the more acid phosphate concentration obtained. The largest phosphate acid concentration levels that obtained in extraction with 55% H2SO4 and 3 hours operation is 53.2%.