Engineers, please practice proper chemical hygiene

Engineers, please practice proper chemical hygiene By Elia Diodati Fox told me yesterday that the engineers in his building were routinely and wantonly disposing of liters of hydrofluoric acid down the sink after using them for etching. Although a quirk of fluorine’s electronic structure makes hydrofluoric acid a weak acid, in the technical sense used by chemists, there is absolutely nothing weak about the corrosive nature of HF. It’s still one of the nastiest substances known to mankind