I was wondering that if you wrapped some Epsom salt in aluminum foil and set it on fire would you get aluminum sulphate and magnesium oxide, I couldn't find anything about this on the internet

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    $\begingroup$ OK, I'll bite. How do you expect alumina to take $\ce{SO3}$ away from magnesia when the latter is a much stronger (Lux-Flood) base? $\endgroup$ – Oscar Lanzi Oct 11 '19 at 20:34
  • $\begingroup$ I thought that because Oxygen is much more reactive than Sulphur the oxygen atoms will go to the magnesium one and the Sulphur atom will go to the aluminum atom $\endgroup$ – Rishimister Oct 12 '19 at 7:48
  • $\begingroup$ You will get magnesium and aluminium oxides. $\endgroup$ – Poutnik Oct 12 '19 at 8:59

Aluminum oxide does not react with sulphates, even at high temperature. Anyway, aluminum sulphate does not support high temperatures : it is easily decomposed at around 700°C.

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