In the case of Aluminum hydroxide the hydroxyl groups form a double-layer structure, where the aluminum ions are in 2 3 rd of the octahedral voids of the double layer. The aluminum hydroxide reacts with hydrochloric acid as well as sodium hydroxide solution to produce 4 Al(OH) - and 3 AlCl respectively. The reactions are shown below, 3 3 2 Al(OH) 3HCl AlCl 3H O(l) + ® + 3 4 Al(OH) OH (aq) Al(OH) (aq) - - + ® But the Al—O, and O—H bonds cannot be broken with equal ease.
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