Letter 31918

The conversion of iron oxides--Fe3O4 to Fe2O3  

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I am a post-graduate student doing research in converting iron oxide Fe3O4 (magnetite) into Fe2O3 (hematite). As we know, Fe3O4 can be considered as cystal 1:1 ratio of FeO (Fe+2) and Fe2O3 (Fe+3) and FeO can be oxidized into hematite at 600C. Can I fire Fe3O4 in air at 600C to obtain Fe2O3 ? This is because when oxidation is carried out, Fe3O4 will be converted into magmite (Fe2O3) which is not stable and further stabilized as hematite at 600C.

Regards.

H Song Woon
student - Kuala Lumpur, Selangor, Malaysia

When you've done the experiment, you'll know the answer.

Bill Reynolds    consultant metallurgist Ballarat, Victoria, Australia

As a post graduate student, you should be DOING THE EXPERIMENT, not asking people on the Internet for the answer. The purpose of post graduate qualifications is to expand our scientific knowledge, so if you get the answer off the Internet, the knowledge is already known and you don't deserve any PG qualification. Besides doing the experiment, look at the thermodynamics of the system and try to work it out from there, then see if the two answers agree.

Trevor Crichton R&D practical scientist - UK

I'M a teacher I'm little bit confused whether Fe3O4 is electically neutral or not and why?

Poonam
teacher - ludhiana, India

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