The Student Room Group

What are the disadvantages for an iron catalyst in Production of ammonia?

I can’t think of any 🤔
Original post by Discombobula
I can’t think of any 🤔


Iron rusts.
Original post by Blue_Cow
Iron rusts.


I thought that was only with oxygen 🤔
🤔..
Reply 4
It is not as effective as platinum? It gets poisoned easily?
Original post by Pigster
It is not as effective as platinum? It gets poisoned easily?


I don't know the answer to this question.

It doesn't need to be particularly effective, as the Haber process is cyclical and under the conditions used the equiibrium is attained rapidly enough.

I can't believe that it gets poisoned more easily than platinum. However, ALL heterogeneous catalysts lose some activity as other compounds adsorb onto the surface.

Industry is not daft, if it was no good (the best/cheapest) it would not be used.

I would say that the answer is "none", there are no disadvantages. But hey, what do I know ...
Reply 6
Original post by charco
I would say that the answer is "none", there are no disadvantages. But hey, what do I know ...


I would agree: I don't know of any reasons. I just took the Q at face value. If there are reasons, they were my best guesses. Hence the question marks.
Original post by Discombobula
I thought that was only with oxygen 🤔

I think it can rust with water as well.
Reply 8
Original post by BubblesandPoTaTo
I think it can rust with water as well.
but there is no water in the Haber process. One disadvantage is that mining iron has damaged the earth.

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