m (HCl moved to Hydrochloric acid over redirect: correct term; "HCl" common lab shorthand but should be HCl(aq))
Revision as of 06:26, 23 June 2011
Hydrochloric acid (HCl) is a common acid both in the body and in the lab. It is, for example, a major component of gastric acid (pH 1-2, 0.5% HCl). In experiments, it is used among other things to set the pH in buffers (e.g. Tris) and to reveal antigens (e.g. BrdU).