Potassium Iodide and Lugol's Solution?

[mic209]

I just picked up some ESV 1% Potassium Iodide, just wondering is this the same kind of potasium that is in Lugols Solution?

 

[Randy Holmes-Farley]

No, they are not the same, but the ESV is better, IMO, as a supplement. Lugols contains iodide and I2. The I2 is unnatural in seawater, and is somewhat reactive.

I discuss this issues here:

Iodine in Marine Aquaria: Part I
http://www.advancedaquarist.com/issues/mar2003/chem.htm