Solutions of 0.1M aluminium nitrate AlNO33 9H2O-Merck 95%and 2M sodium hydroxide aOH-Mallinckrodt 98.7% were prepared separately in 50 ml and 100 ml volumes of distilled water, respectively.
Se prepararon, separadamente, las soluciones 0,1 M de nitrato de aluminio AlNO33 9H2O-Merck 95% y 2 M de hidróxido de sodio NaOH-Mallinckrodt 98,7%, en volúmenes de agua destilada de 50 ml y 100ml, respectivamente.