3 (NH₄)₂S₂O₈ (aq) + 8 NH₃ (aq) → N₂ (g) + 6 (NH₄)₂SO₄ (aq)

This is an oxidation-reduction (redox) reaction:

2 N^-III - 6 e^- → 2 N⁰ (oxidation)

24 O^-14/8 + 6 e^- → 24 O^-II (reduction)

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

Reactants:

(NH₄)₂S₂O₈
- Names: Ammonium persulfate , Ammonium peroxydisulfate , Peroxydisulfuric acid, diammonium salt
- Appearance: White to yellowish crystals ; Colourless crystals or white powder
NH₃
- 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.]

Products:

N₂
- Names: Dinitrogen , Nitrogen (compressed gas) , Nitrogen (liquified)
- Appearance: Odourless colourless compressed gas ; Odourless colourless extremely cold liquid
(NH₄)₂SO₄ – Ammonium tetraoxosulfate (VI)
- Other names: Ammonium sulphate , Ammonium sulfate , Ammonium sulfate (2:1)
- Appearance: Fine white hygroscopic granules or crystals.

3 (NH4)2S2O8 (aq) + 8 NH3 (aq) → N2 (g) + 6 (NH4)2SO4 (aq)