Nitrogen Fixation
| Formula / Notation | N₂ + 3H₂ → 2NH₃ (Haber process); biological: N₂ + 8H⁺ + 8e⁻ → 2NH₃+H₂ (nitrogenase) |
|---|---|
| Also Known As | Haber process, biological nitrogen fixation, N₂ reduction, nitrogen fixation |
What is Nitrogen Fixation?
The conversion of atmospheric nitrogen (N₂) into compounds usable by organisms, such as ammonia or nitrates. Biological fixation occurs through bacteria like Rhizobium. Industrial fixation uses the Haber process. Fixed nitrogen is essential for protein and nucleic acid synthesis.
Formula & Notation
Other Names / Synonyms: Haber process, biological nitrogen fixation, N₂ reduction, nitrogen fixation
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The conversion of atmospheric nitrogen (N₂) into compounds usable by organisms, such as ammonia or nitrates. Biological fixation occurs through bacteria like Rhizobium. Industrial fixation uses the Haber process. Fixed nitrogen is essential for protein and nucleic acid synthesis.
Nitrogen fixation is essential to global food security: ~50% of the world's protein nitrogen is derived from Haber process ammonia (fertilisers). Biological N-fixation in legume root nodules reduces dependence on synthetic fertilisers. Fixed nitrogen is the starting material for all nitrogen-contain…
The Haber process operates under extreme conditions (400-500°C, 150-300 atm) — high-pressure reactor engineering and safety systems are critical. NH₃ is toxic (TLV = 25 ppm), flammable (15-28% in air), and corrosive. Liquid ammonia leaks are a major industrial hazard requiring gas detection and emer…
The formula or notation for Nitrogen Fixation is: N₂ + 3H₂ → 2NH₃ (Haber process); biological: N₂ + 8H⁺ + 8e⁻ → 2NH₃+H₂ (nitrogenase)