What is Bauxite? - Mineral, Formula, Uses with Videos and FAQs

A 1.1286 g sample of bauxite was analyzed for aluminum. Thesample was pulverized and dissolved in concentrated nitric acid.The HNO3 was removed by evaporation and insolublesolids, by gravity filtration. The solution was made basic by theslow addition of dilute NH3 at which point agelatinous solid precipitated (Al(OH)3 andAl2O3. x H2O). The precipitate washeated to coagulate it as much as possible then filtered over"fast" filter paper; the paper and solids were placed in aporcelain crucible and t