Erin Brockovich hexavalent chromium case

Cultural shorthand only. Tom names the case as a marker for hexavalent-chromium carcinogenicity; no facts of the case discussed.

You can use sodium hydroxide, which is used a lot because it's not terribly toxic. It can be neutralized in acid and thrown down the drain. Nitric acid, sulfuric chromic — now we're getting into the good stuff. Chromic, that's CrO₃, that's hexavalent chrome, that's Erin Brockovich, that causes cancer. It does a great job of cleaning, by the way. Phosphoric chromic, sulfuric and ferrous sulfate.