3 N2H4 (aq) → 4 NH3 (aq) + N2 (g)

This is an oxidation-reduction (redox) reaction:

2 N-II - 4 e- → 2 N0 (oxidation)

4 N-II + 4 e- → 4 N-III (reduction)

N2H4 is both an oxidizing and a reducing agent (disproportionation (dismutation)).

This is a gas evolution reaction, N2 is the formed gas.

Reactants:

  • N2H4 – Hydrazine source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Diamine; source: wikipedia, accessed: 2019-09-27, Diazane source: wikidata, accessed: 2019-09-02, Tetrahydridodinitrogen source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless, fuming, oily liquid source: wikipedia, accessed: 2019-09-27; Colourless fuming oily hygroscopic liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless, fuming, oily liquid with an ammonia-like odor. [Note: A solid below 36°F.] source: NIOSH NPG, accessed: 2019-09-02

Products:

  • NH3
    • Names: Ammonia source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02, Azane (only intended for use in naming derivatives of ammonia) source: wikipedia, accessed: 2019-09-27, Hydrogen nitride source: wikipedia, accessed: 2019-09-27
    • Appearance: Colourless gas source: wikipedia, accessed: 2019-09-27; Colourless gas or compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless gas with a pungent, suffocating odor. [Note: Shipped as a liquefied compressed gas. Easily liquefied under pressure.] source: NIOSH NPG, accessed: 2019-09-02
  • N2
    • Names: Dinitrogen source: wikidata, accessed: 2019-09-07, Nitrogen (compressed gas) source: ICSC, accessed: 2019-09-04, Nitrogen (liquified) source: ICSC, accessed: 2019-09-04
    • Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04; Odourless colourless extremely cold liquid source: ICSC, accessed: 2019-09-04