Question for chemist Dopers:
I know the white crystalline stuff from leaking alkaline AAA batteries is usually potassium hydroxide or potassium carbonate, but what if it’s brown powdery or crystalline fluff instead of white that is spilling out the end of a battery?
Maybe potassium hydroxide or carbonate that’s been exposed to moisture in air for a long time?
Or something else entirely?
Wish I could attach a photo