These two will keep indefinitely, correct?
Or do I need to make Lugol's of it first?
Then, after some years, when I'm out of Iodoral, all I need is some alcohol to make Lugol's of the above?
Will I need to use up everything from the container(s) right away, once the seal has been broken?
I wouldn't know what to do with a liter of Lugol's. :)