Not sure how potasium vs sodium would change things. There must be some info out there about it from a food science point of view.
From a chemistry point of view, the ions are “the same”. I would not expect there to be much difference except that potassium chloride is probably harder to get and costs more. (thinking water softner salt)
I dont add NaCL to my brewing water. I usually stick with Calcium Chloride and Calcium Sulfate.
I can’t see any compelling reason to choose KCl over NaCl. A small amount of sodium is fine for flavor purposes, but you want to keep it at a relatively low level. Potassium has a similar flavor impact to sodium, so I can’t see any reason why you’d prefer it to sodium.
I’d be careful with what you consider “excess” on KCl. 7.5 grams is the dose they use in lethal injection, and you can still cause serious cardiac issues well below that.
You are correct, using different chemicals requires caution. Since I’m not into executing myself, in a 5.5 gallon batch, 100 ppm would be about 1 gram per gallon or 150 ppm would be about 1.5 grams per gallon.
If you look at commercial water sales - the ingredients Potassium Chloride, Calcium Sulfate and Sodium Chloride are main ingredients in most (for taste) and IMHO waters that use those salts taste very good. Of course it’s difficult to determine the makeup of the base water they add those to.
Oh and BTW instead of mindlessly repeating the crap you guys found during an inane google search, do some research for yourselves. I can’t believe someone thinks injecting raw potassium chloride into ones bloodstream during an execution is the same as adding a couple grams to a beer. Unbelievable. Then another person randomly injects that it’s a source for chloride! Total BS. Quit spreading FUD.
Or, you could read the entire document that you found while googling instead of going on a hyperactive tirade. If excess potassium can be dangerous to certain people, I personally think that requires some degree of forethought instead of dismissing any caution as FUD.
Wow. I mean, wow. I’m blown away that somebody new here would draw their line in the sand on freaking KCl. Really ? Whatever. You may justify calling people stupid as civil, but I’m pretty convinced it isn’t. I’m well aware that adding it doesn’t to beer doesn’t equate to an IV injection, but it doesn’t necessarily make it smart for people with varying medical conditions either. Damn sure doesn’t make someone who wants to err on the side of caution stupid.