4 ms·
No, but muriatic acid does. I'm pretty sure it's a redox reaction.
by stagbeetle 10y ago
No, but muriatic acid does. I'm pretty sure it's a redox reaction.
- lqdc13 10y agoHow is HCl related to KMnO4? And why would one combine them? Why not just add a hypochlorite to water if the end goal is to disinfect with chlorine?
- stagbeetle 10y agoIt was a comparison on par with the parent comment's argument. Looking back, it wasn't well constructed on my end and probably led to confusion. What I was going for was: just because they do the same thing doesn't mean they're the same at all. HCl + KMnO4 -> KCl + MnCl2 + Cl2 + H2O
- jcranmer 10y agoThe allegation is that KMnO₄ is undergoing a redox reaction with HCl to produce Cl₂ gas (which is a plausible redox reaction, given the half-reaction potentials). But yeah, in practice you're going to disinfect with Cl₂ gas or NaClO. The water plant I worked at switched from Cl₂ to ClO¯ as primary disinfectant, and the operators were all for it. No more need to manually switch out Cl₂ tanks, no more Cl₂ venting issues (spilling NaClO is nowhere near as bad a Cl₂ leak). (The plant also used O₃ for bonus disinfection as well. The operators hated it at first, but now would throw a conniption fit were it broken).