Can Fe2O3 Be Reconverted from FeCl3 Using NaOH and Heat?

  • Thread starter nigi81
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In summary, Fe2O3 can be dissolved in hot HCl to produce FeCl3. To retrieve Fe2O3, the hydrolysis of FeCl3 followed by heating can be used. Additionally, Fe2O3 can be converted to Fe(NO3)3 by reacting it with an acid, such as Sodium Hydroxide. The heat produced during the reaction can then convert some of the Iron Hydroxide back into Fe2O3, which can be further converted back to Fe(NO3)3 by drying and heating in an oven.
  • #1
nigi81
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fe2O3 is soluble in hot HCl and it gives FeCl3. How can you get Fe2O3 back? could that be used to enrich Fe2O3 from a complex mixture?

Is there any way to convert Fe2O3 in Fe (NO3)3?
 
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  • #2
Hydrolysis of FeCl3, followed by heating should work.

Is there any way to convert Fe2O3 in Fe (NO3)3

Can you think of an obvious way using an acid?
 
  • #3
Reacting the Iron (III) Chloride solution with Sodium Hydroxide should precipitate out Iron Hydroxide as well as give off heat. The heat produced during the reaction should then convert some of the Iron Hydroxide back into Iron Oxide, anything else should convert back to Fe2O3 as it dries, then heat it up in an oven just to be sure.
 

1. What is ferric oxide solubility?

Ferric oxide solubility refers to the ability of ferric oxide (Fe2O3), also known as iron(III) oxide, to dissolve in a given solvent or solution.

2. What factors affect ferric oxide solubility?

The solubility of ferric oxide is influenced by several factors, including temperature, pH, and the presence of other substances that can form complexes with the iron ions in the oxide.

3. Is ferric oxide soluble in water?

Yes, ferric oxide is slightly soluble in water, with a solubility of 0.0001 g/100 mL at 20°C. However, the solubility can increase at higher temperatures or in the presence of certain substances.

4. What is the chemical equation for the dissolution of ferric oxide in water?

The chemical equation for the dissolution of ferric oxide in water is: Fe2O3 (s) + 3H2O (l) → 2Fe(OH)3 (aq)

5. How is ferric oxide solubility used in scientific research?

Ferric oxide solubility is often used in scientific research as a way to study the properties and behavior of iron ions in different environments. It can also be used to investigate the effects of various substances on the solubility of iron compounds.

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