5 (NH4)2Cr2O7 (aq) → 6 NO (g) + 5 Cr2O3 (s) + 4 NH3 (aq) + 14 H2O (l)
This is an oxidation-reduction (redox) reaction:
6 N-III - 30 e- → 6 NII (oxidation)
10 CrVI + 30 e- → 10 CrIII (reduction)
(NH4)2Cr2O7 is a reducing agent, (NH4)2Cr2O7 is an oxidizing agent.
This is a precipitation reaction: Cr2O3 is the formed precipitate.
This is a gas evolution reaction, NO is the formed gas.
- (NH4)2Cr2O7 – Ammonium dichromate
- NO – Nitrogen monoxide , Oxidonitrogen(•) (additive)
- Names: Ammonia , Azane (only intended for use in naming derivatives of ammonia) , Hydrogen nitride
- Appearance: Colourless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a pungent, suffocating odor. [Note: Shipped as a liquefied compressed gas. Easily liquefied under pressure.]
- H2O – Water, oxidane