Mixing iodine with limewater

I don't really have any more information than when I wrote that article, but I wouldn't recommend mixing them. Iodate would likely be stable in limewater, but it wouldn't be my preference to dose that, and no commercial additives that I know of contain it. I2 (Lugols, etc) would not be stable, converting to iodate and maybe iodide. Iodide may or may not be converted into iodate.
 
Thank you!
I'll use two containers then.

Btw, which is best between iodine and iodide.
And which brand would you recommend?
 
I generally recommend that folks not bother to add iodine (I don't), but if I were to, I'd add iodide rather than iodate or additives with molecular iodine or organic (time released) forms. If it just says iodine on the bottle, you can't be sure what form it is. There are probably many fine brands, such as ESV.
 
I've checked the iodine spplement bottle I have, this is Kent concentrated iodine:

it says that it " may be dosed with kalkwasser"
and ingredient list is:
di water, potassium iodide, calcium iodide, sodium hydrogen carbonate, sodium carbonate and sodium tetraborate.

I guess I can trust them, and mix it in the same container as the kalkwasser.
 
If you trust them, then yes, that is a reasonable conclusion. I would not, since I disagree with other chemical assertions that they have made in the past about their products. My concern is oxidation by O2 to iodate under the high dilution conditions in limewater. You might specifically ask them if they have ever measured to see if it is oxidized under high dilution, high pH conditions in limewater. I'm not saying that is it, necessarily, just that it might be.
 
Ok, back to my two containers. It's safer, and not such a big deal.

While you're here, is there any advantage of using limewater, instead of baking soda?
 
Limewater adds calcium and alkalinity in a balanced ratio to each other, and raises pH. It is what I use.

Baking soda adds only alkalinity. If raw, it has a tiny pH lowering effect. If baked (300 deg F, 1 h), it will have a pH raising effect.
 
Calcium iodide and calcium iodate are not so soluble so they could precipitate.
 
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