Potassium dichromate. Molecular model of the chemical compound potassium dichromate (K2.Cr2.O7). This ionic compound is most commonly used as an oxidizing agent. It has a red-orange colour, and is also used as a dye and indicator chemical. Atoms are represented as spheres and are colour-coded: chromium (grey), oxygen (red) and potassium (violet). Illustration.
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