Why does 20% dilute sulfuric acid not react with iron oxide?

2017-08-17View Original

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I would like to ask why 20% dilute sulfuric acid does not react with iron oxide?

Reply #22017-08-17

Under normal conditions on Earth, iron oxide does react with dilute solutions. The fact that there is no reaction there indicates that either these substances are not under normal Earthly conditions, or there is something wrong with the people involved.

Reply #32017-08-17

Will a solution containing 5% hydrofluoric acid cause no reaction?

Reply #42017-08-18

http://bbs.hcbbs.com/thread-906317-1-1.html

Reply #52017-08-22

The Fe2O3/Fe3+ potential is high, requiring a more concentrated dilute sulfuric acid to react

Reply #62017-08-24

Where does your claim come from? Metal oxides react with dilute acids to form salts; what is the relationship with potential?

Reply #72017-08-27

This reaction should be possible to carry out; is it the location where you made a mistake?

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Why does 20% dilute sulfuric acid not react with iron oxide?

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