Origin: Latin suffix -ate
Dichromate has 2 different meanings across 1 category:
a salt of the hypothetical dichromic acid
any salt of dichromic acid; in solution the orange dichromate anion (Cr₂O₇²⁻) is in equilibrium with the yellow chromate anion (CrO₄²⁻), the relative amount of each ion depending on the pH; they are both very powerful oxidizing agents