RPh_Guy
Bringing Sour Back
Do you have a source for this?Bisulfite is thermally-unstable ion and it will decompose into sulfur dioxide (SO2) gas which leaves the boiling wort or water.
Lots of empirical evidence by low oxygen brewers has shown that bisulfite ion does NOT decompose during the boil.
The use of the word "sulfites" by wine makers refers to all three species in equilibrium that form when metabisulfite ion decomposes in aqueous solution, even though the SO3 is the only one actually called sulfite by a chemistry definition. Good luck getting anyone to use the correct chemistry nomenclature.I see that Sulfite somehow popped up in this metabisulfite thread.
SO2•H2O | ↔ | H+ + [HSO3]- | ↔ | 2 H+ + [SO3]2- |
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+1 on the trolling.