Hi. I was reading how to make chlorine gas from HCl and KMnO4. KMnO4 is added to a round bottom flask and then HCL is added via an addition funnel at a pretty slow rate. THe gas is directed into a container with water (through a tube), a bubbler he calls it, it has an in tube and an out tube. This bubbler ensures that the HCl (unreacted I guess) dissolves in the water, right? While the Cl2 is insoluble in water and passes through the out tube, is this correct? Okay, a couple of questions. 2 molecules of MnO4- are needed to strip 2 hydrogens off HCl, and the two Cl's combine and become the diatomic Cl2. Is this correct? This reaction calls for muriatic acid, which is something like 31.5% HCl. It's OTC, and I was wondering if anyone knew the brand name of this product, or is it simply sold as muriatic acid? I was also reading that KMnO4 can be purchased from a petshop store as an anti-bacterial agent to be used in pond treatment. I'm guessing this stuff isn't 99.9% pure, probably somehting like 70%, but for the purpose of this experiment would this be suitable? Thanks. BTW, I know Cl2 is a nasty gas and I know of the risks involved, this would be an experiment I probably wouldn't be doing inside (especially since I don't have a fume hood). Thanks again!