Proses peleburan timah di Unit Metalurgi PT. Timah (Persero) Tbk, pada suhu 1100-150(fC akan menghasilkan Crude Tin dengan kadar Sn sebesar 99,0 %~99,99%, dan unsur pengotor berupa Fe, Pb, Sb, Ni, …
The isolation and identification of compound from the polar fraction of the betel nut (Areca catechu L.) had been done. The extraction were done by maseration method, while the separation and purif…