N2 + CaC2 → C + CaCN2

This is an oxidation-reduction (redox) reaction:

C-I - 1 e- → C0 (oxidation)

C-I - 5 e- → CIV (oxidation)

2 N0 + 6 e- → 2 N-III (reduction)

CaC2 is a reducing agent, CaC2 is a reducing agent, N2 is an oxidizing agent.

Reactants:

  • 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
  • CaC2 – Calcium carbide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Calcium acetylide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Acetylenogen source: ICSC, accessed: 2019-09-04
    • Appearance: White powder to grey/black crystals source: wikipedia, accessed: 2019-09-27; Grey crystals or black lumps with characteristic odour source: ICSC, accessed: 2019-09-04

Products:

  • C
    • Names: Carbon black source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Acetylene black source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Channel black source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Odourless black pellets or extremely fine powder source: ICSC, accessed: 2019-09-04; Black, odorless solid. source: NIOSH NPG, accessed: 2019-09-02
  • CaCN2 – Calcium cyanamide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Cyanamide calcium salt source: wikipedia, accessed: 2019-09-27, Lime Nitrogen source: wikipedia, accessed: 2019-09-27, UN 1403 source: wikipedia, accessed: 2019-09-27
    • Appearance: White solid (Often gray or black from impurities) source: wikipedia, accessed: 2019-09-27; Colourless crystals source: ICSC, accessed: 2019-09-04; Colorless, gray, or black crystals or powder. [fertilizer] [Note: Commercial grades may contain calcium carbide.] source: NIOSH NPG, accessed: 2019-09-02