How does aluminum form a complex ion upon oxidation?

1 Answer
Jul 10, 2017

Well have you got Al^(3+) or AlI_3?

Explanation:

Aluminum does form an complex ion.........

Al^(3+) + 4HO^(-) rarr [Al(OH)_4]^(-)

From alumina, and this is an important part in (energy-intensive) aluminum refining:

Al_2O_3 + 2NaOH rarr 2Na^(+)[AlO_2]^(-) +H_2O.......