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The chemical equation for rust is: 4Fe + 3O2 + 6H2O → 4Fe(OH)3 Where does the hydrogen come from when burning the iron powder since (presumably) water is not p
by sycren 6y ago
The chemical equation for rust is:
4Fe + 3O2 + 6H2O → 4Fe(OH)3
Where does the hydrogen come from when burning the iron powder since (presumably) water is not part of the burning process?
- deleted 6y ago[deleted]
- deleted 6y ago[deleted]
- Retric 6y agoBurning Iron is a different process 4Fe + 3 O2 ==> 2 Fe2O3. Critically, rust forms at much lower temperatures.
- yetihehe 6y agoWithout water, rust is Fe2O3. It's commonly used as red die for cements and cheapest iron oxide. It's also useful with aluminum to make thermite (which generates VERY high temperatures). Long ago I bought some Fe2O3, it was very fine powder and apparently waste from some chemical process. Edit - mistook oxides.
- sycren 6y agoAre there any other useful chemical reactions that can utilise this waste product?