KI and MnSO4+2(H2O) Solution

rushbattle · Dec 10, 2017

Randy et al.,

Would it be ok to mix an aqueous solution with 765ppm iodine via KI, and 6.5ppm Mn as MnSO4+2(H2O)? I am going to try dosing both but I'd like to only use one dosing pump for the mixture. Thanks for any help with this!

Randy Holmes-Farley · Dec 10, 2017

Mixing should be OK.

Both can air oxidize (iodide to iodate and Mn++ to Mn++++ --> MnO2 which may turn brown and precipitate).

rushbattle · Dec 10, 2017

Randy Holmes-Farley said:
Mixing should be OK.

Both can air oxidize (iodide to iodate and Mn++ to Mn++++ --> MnO2 which may turn brown and precipitate).

Thanks! Would a chelating agent help with oxidation? If so, any suggestions?

rushbattle · Dec 10, 2017

rushbattle said:
Thanks! Would a chelating agent help with oxidation? If so, any suggestions?

Or the obvious, would an anti0xidant help?

Randy Holmes-Farley · Dec 11, 2017

rushbattle said:
Thanks! Would a chelating agent help with oxidation? If so, any suggestions?

I'm not sure if it would help, but it might. It's not air oxidation, but this paper shows some simple chelators that reduce oxidation rates:

http://www.jbc.org/content/267/33/23688.short

Randy Holmes-Farley · Dec 11, 2017

rushbattle said:
Or the obvious, would an anti0xidant help?

Maybe. Like Vitamin C.

Keeping it tightly sealed when not in use would also help, as would minimizing the air head space above the liquid.

rushbattle · Dec 11, 2017

Randy Holmes-Farley said:
I'm not sure if it would help, but it might. It's not air oxidation, but this paper shows some simple chelators that reduce oxidation rates:

http://www.jbc.org/content/267/33/23688.short

Randy Holmes-Farley said:
Maybe. Like Vitamin C.

Keeping it tightly sealed when not in use would also help, as would minimizing the air head space above the liquid.

Would it cause an interaction if I put both potassium citrate and ascorbic acid into solution? 1000 ppm ascorbic acid and 50 ppm citrate in the form of potassium citrate? I am sorry for the basic questions, but my organic chemistry classes were long ago at this point! Thank you for all of your help!!!

Randy Holmes-Farley · Dec 11, 2017

rushbattle said:
Would it cause an interaction if I put both potassium citrate and ascorbic acid into solution? 1000 ppm ascorbic acid and 50 ppm citrate in the form of potassium citrate? I am sorry for the basic questions, but my organic chemistry classes were long ago at this point! Thank you for all of your help!!!

I think that's an OK combination.

Potassium citrate will boost alkalinity a bit.