Seeking advice on iron oxide trioxide
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I would like to ask how to dissolve iron oxide trioxide. I have tried using dilute hydrochloric acid and concentrated hydrochloric acid, but it couldn’t be completely dissolved in either case. I hope the teacher can give some guidance. Thank you!
Pure iron oxide trioxide can be easily dissolved with acid. If the hydrochloric acid you mentioned cannot dissolve it completely, then just test what the residue is. Then, based on the amount of residue, reconsider from which source you purchased this reagent.
Thank you:handshake I bought the reagent; when I added concentrated hydrochloric acid and heated it, it didn’t dissolve completely.
Try concentrated nitric acid; it must be dissolved using an oxidizing acid
Thank you! I’ll give it a try: handshake
Why is an oxidizing acid used to dissolve iron oxide trioxide? Can you reason things out?
When I was dissolving the iron standard solution, hydrochloric acid didn’t work; adding some hydrogen peroxide made the dissolution faster. So I thought that using an oxidizing acid might be better. Personal experience can’t provide any real insights. I hope you can offer your guidance