hello. putting together a medium sized first aide/survival kit for camping and overseas trips. one of the things i want to put in there is iodine for general antiseptic and, in a pinch, water purification (i have some iodine based pills too). i went around to a couple grocery stores and pharmacies, but i wasn't really sure what i was looking for. the most concentrated i've seen so far seems to be 2%, is this it? also, what is Povidone-Iodine, is this what i'm looking for? also, i've seen alot of warnings about ingesting iodine on the bottles, is this just in large quantities or even the small amount required to help purify drinking water? thanks for the info.<br><br>