The oxidation of sulfite in acid solution by dichromate, bromate and permanganate was found to be incomplete, the oxidant used being several per cent short of that required in each case to change sulfite ion completely into sulfate ion. This is probably clue to the formation of dithionate, which is not further oxidized. Iodate behaves very differently.
Proceedings of the Iowa Academy of Science
©1925 Iowa Academy of Science, Inc.
Hendrixson, W. S.
"The Action of Certain Oxidizing Agents in Sulfite and Its Determination,"
Proceedings of the Iowa Academy of Science, 32(1), 322-323.
Available at: https://scholarworks.uni.edu/pias/vol32/iss1/43