calcium carbonate extraction dry process
EXTRACTION AND PURIFICATION OF CAFFEINE. CHEM 321 EXTRACTION AND PURIFICATION OF CAFFEINE To the hot water in the 600 mL beaker add 12 g of calcium carbonate or 9 g of calcium hydroxide powder about a tablespoonful of rock salt and the tea leav Ask an instructor to verify that it is in fact dry Once dry add enough anhydrous calcium