How to Separate Rust Iron (Fe2O3) into Ferum/Iron and Oxygen?

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    Iron Oxygen Rust
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Discussion Overview

The discussion centers around methods to separate rusted iron (Fe2O3) into its elemental components, iron and oxygen, through practical experiments. Participants explore various chemical reactions and processes that could achieve this separation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant suggests using a single replacement reaction with aluminum to reduce iron oxide to iron metal, producing aluminum oxide and oxygen gas, but notes practical challenges with melting temperatures.
  • Another method proposed involves using carbon to reduce iron oxide to iron while producing carbon dioxide, with a subsequent idea to generate oxygen from the carbon dioxide, though practicality is questioned.
  • A later reply mentions the potential contamination of oxygen samples by ethylene gas from plants, advising caution with temperature control during aluminum reactions to avoid thermite reactions.
  • One participant proposes reducing iron oxide with hydrogen at elevated temperatures, capturing water produced to obtain oxygen through hydrolysis.

Areas of Agreement / Disagreement

Participants present multiple competing views on methods to separate iron and oxygen, with no consensus on the most practical approach. Some methods are deemed impractical or risky, while others are suggested as safer alternatives.

Contextual Notes

Participants express uncertainty regarding the practicality of various methods, particularly concerning the temperatures required and the potential for contamination in the processes discussed.

Who May Find This Useful

This discussion may be useful for students or individuals interested in experimental chemistry, particularly those exploring methods of chemical reduction and gas collection.

Glazerz_X
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Greetings, i am assigned to do a project which requires us to do experiment on ways to separate the rusted iron into 2 elements which are Iron and Oxygen. Anyone have any idea about that?:bugeye:
 
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So it needs to be a practical experiment which you can perform and you need to produce Iron metal and Oxygen gas from the Iron (III) Oxide……hmmmm

The first thing that comes to mind would be to do a single replacement reaction with the Iron Oxide and a more active metal (like Aluminum, for example), to produce the Iron metal and leaving another metal Oxide. You could then melt and electrolytically refine the metal oxide back to the original metal and in the process give off Oxygen gas.
For example,
Fe2O3 + 2Al --> 2Fe + Al2O3

Al+3 + 3e- --> Al
2O-2 --> O2 + 4e-

But I suppose you could have cut the thermite process out and saved yourself a step by just melting and electrolysizing the Fe2O3 directly (if it wouldn’t decompose first), but neither Fe2O3 or Al2O3 melt at very reasonable temperatures, so this method isn’t too practical.


Another method that comes to mind would be to use Carbon to reduce the Iron in the Iron Oxide back to its elemental state while producing Carbon Dioxide gas.
2 Fe2O3 + 3 C --> 4 Fe + 3 CO2
One could then collect this Carbon Dioxide gas and (using a plant’s photosynthetic abilities) produce Oxygen gas and some sugar….or some other method of breaking up the CO2 back into Carbon and Oxygen gas.
I guess this isn’t too practical of an idea either.

Getting the Iron metal back is relatively easy….it is getting the Oxygen back which is posing a problem in my ideas.
 
Thanks for the answer.

Thanks for the reply. I will go and try it out. Hopefully it will work out for me.
 
But some plants release ethylene gas (C2H4) besides the oxygen and water vapor which may contaminate the sample. But unless you are using a dandelion or a plant with a fruit on it i wouldn't be too worried. If you use aluminum keep the temperature below 2204 degrees celsius because that could initate a thermite reaction and you can't put those out with water. Go do some research before you get into it too deeply.
 
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You could reduce the iron oxide with hydrogen at elevated temperature and capture the water generated. Simple hydrolysis of the water gives you oxygen and the hydrogen to recycle into your process.

Google the Artemis Project.
 
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Thanks. I will try the safer experiment.
 

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