Preparation
Aluminium nitrate is not easily made by adding aluminium to nitric acid, as the aluminium forms a passivation layer.
Aluminium nitrate is made by adding nitric acid to aluminium trichloride. Nitrosyl chloride is produced as a by-product; it bubbles out of the solution as a gas.
Aluminium nitrate nonahydrate can also be made by adding a lead nitrate solution to an aluminium sulfate solution. The insoluble lead sulfate is precipitated out of the solution, leaving a solution of aluminium nitrate.
Read more about this topic: Aluminium Nitrate
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