In the first step, aluminum hydroxide reacts to form alumina and water: 2AlOH3 (s) → Al2O3 (s) + 3H2O (g)?
In the second step, alumina and carbon react to form aluminum and carbon dioxide:
2Al2O3
(s)
+
3C
(s)
→
4Al
(s)
+
3CO2
(g)
Write the net chemical equation for the production of aluminum from aluminum hydroxide and carbon. Be sure your equation is balanced.
More Questions From This User See All
Answers & Comments
Verified answer
Chemical equations....
4Al(OH)3(s) --> 2Al2O3(s) + 6H2O(g) .................... double the coefficients so Al2O3 cancels out
2Al2O3(s) + 3C(s) --> 4Al(s) + 3CO2(g)
----------------- ------------------ ----------------------
4Al(OH)3 + 3C(s) --> 4Al(s) + 3CO2(g) + 6H2O(g)
Note:
Most references to the aluminum carbothermic reaction indicate carbon monoxide as the product, rather than carbon dioxide.
Al2O3(s) + 3C(s) --> 2Al(s) + 3CO(g)