Chromium Trioxide, Flakes, Purified | Spectrum Chemical®​​

Chromium Trioxide, Flakes, Purified is a flaky dark purple solid when anhydrous and turns orange when when wet. Its main use is in chrome-plating. Typically used with additives during the plating process that do not affect the trioxide, it can also be used with chromic acid to apply certain types of anodic coating to aluminum.