Aluminium(III) nitrate hydrate → Aluminum nitrate
반응식
O.[N+:2]([O-:5])([O-:4])=[O:3].[Al+3:6].[N+:7]([O-:10])([O-:9])=[O:8].[N+:11]([O-:14])([O-:13])=[O:12]>O>[N+:2]([O-:5])([O-:4])=[O:3].[Al+3:6].[N+:7]([O-:10])([O-:9])=[O:8].[N+:11]([O-:14])([O-:13])=[O:12]참가 물질
3
실험 절차
375.13 g (1 mol) of aluminum nitrate hydrate [Al(NO3)3.9H2O, manufactured by Wako Pure Chemical Industries, Ltd.] was dissolved in pure water, to obtain 1000 cm3 of an aluminum nitrate aqueous solution. To 100 cm3 of the aluminum nitrate aqueous solution was added 2.83 g (Al2O3 quantity: 0.566 g) of the above-mentioned seed crystal slurry, and this mixture was charged into a vessel of rotary evaporator. The pressure of an atmosphere in the vessel was reduced, and the vessel were heated by water of 75° C., to remove water in the mixture, obtaining powder. 100 parts by-weight of this powder contained 10 parts by weight of alumina [Al2O3] as a seed crystal. The powder was charged into an alumina crucible, and the alumina crucible was placed in a box-type electric furnace. It was calcined for 3 hours in air-of 850° C. The resulted α-alumina powder had an average primary particle diameter of 96 nm. The α-ratio and BET specific surface area of this α-alumina powder are shown in Table 1. The photograph of the α-alumina power is shown in FIG. 1.