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+ Inorganic chemistry
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Noor

What happens when barium iodate is heated?

Anil Mukhiya  Follow
Quote from:
Ba2(IO6)2 [...]

Ba5(IO6)2

Quote from:
[...] barium orthoperiodate has nothing common with a double salt.

Correct. But what I'm trying to say is that the product of this reaction should be a double salt, because this is the definition of the Rammelsberg reaction...

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Dave Shawtie's  Follow
Ba2(IO6)2 - barium orthoperiodate has nothing common with a double salt.

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Ben Welborn  Follow
Thank you for correction my printing error.

Such a formula could have been proposed by Carl Friedrich Rammelsberg in 1838 - other times, a different notation and understanding of chemistry. But it is not right now to give this ancient information as true if we know the true course of this reaction and we also know the structure of the product of this reaction.

Rammelsberg is trying to match the Ba5J2O12 formula for various oxygen combinations, e.g. Ba5O5 + J2O7 or BaJ2 + Ba4O12 (original form of writing at that time)

Moreover, both reactions given by Chris1 are true: the former at ~580°C to 800°C, the later above 800 C

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Chun Xu  Follow
The first one, because you will get a double salt BaI2·4BaO3 by heating.
Keyword: Rammelsberg reaction.

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