Make up the reaction equation: Al- AlCl3- Al (OH) 3- Al2 (SO4) 3- Al (OH) 3- Al2O3- Al
| September 26, 2021 | education
1. Obtaining aluminum chloride.
Al + FeCl3 = AlCl3 + Fe.
2. Reaction with an aqueous alkali solution.
AlCl3 + 3NaOH = Al (OH) 3 + 3NaCl.
3. Reaction with sulfuric acid.
Al (OH) 3 + 3H2SO4 = Al2 (SO4) 3 + 6H2O.
4. Reaction with alkali without excess.
Al2 (SO4) 3 + 6 NaOH = 2Al (OH) 3 + 3Na2SO4.
5. Thermal decomposition.
2Al (OH) 3 = Al2O3 + 3H2O.
6. Electrolysis at t = 950 ° C.
4Al2O3 = 4Al + 3O2.
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