A:it what to do with
B:what to do it with
C:what to do with it
D:to do what with it
明矾石的主要成分是K2SO4•Al2(SO4)3•2Al2O3•6H2O,还含有少量Fe2O3杂质.利用明矾石制备氢氧化铝的流程如下: