You might get a laugh out of this... I got some time this afternoon to mix some electrolyte. Not thinking much about it.... I poured precisely 5oz of KOH into 50oz of H2O for a 10% mixture into a 2liter coke bottle (yes it was empty and cleaned prior)... Anyway, it darn near melted the bottom of the bottle. I got scared and put it outside until things cooled down. Just laughing at myself now...

Also as things were cooling down and I was looking this up I found this bit of information on the web regarding KOH -vs- NaOH: "Potassium hydroxide is preferred over sodium hydroxide because its solutions are more conductive." - found it here: http://en.wikipedia.org/wiki/Potassium_hydroxide