1. n. [Drilling Fluids]
A salt of chromium in which chromium atoms are in the plus-3 valence state, such as chromic chloride, CrCl3. Chromic compounds are considered less harmful to the environment than chromates (plus-6 valence) because they are at a low oxidation state and not highly reactive.
See: chromate salt, chrome lignite, chrome lignosulfonate, chrome-free, redox
