A salt, typically red or orange, containing the anion Cr2O72−.
- Common oxidants include the halogens (especially fluorine and chlorine), oxygen, ozone, potassium permanganate, potassium dichromate, nitric acid, and concentrated sulfuric acid.
- The breath sample is bubbled in one vial through a mixture of sulfuric acid, potassium dichromate, silver nitrate and water.
- The most regularly employed oxidizing agent for this set of reactions is a mixture called chromic acid, a mixture of sodium or potassium dichromate and sulfuric acid.
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