page_title: Nitrogen dioxide
hierarchical_section_title: Nitrogen dioxide
caption_attribution_description: English: An overlay of the same 99.9% pure NO2/N2O4 sealed in an ampoule. From left to right -196 °C, 0 °C, 23 °C, 35 °C, 50 °C
context_page_description: Nitrogen dioxide is a chemical compound with the formula NO
  ₂. It is one of several nitrogen oxides. NO
  ₂ is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use primarily in the production of fertilizers. At higher temperatures it is a reddish-brown gas. Nitrogen dioxide is a paramagnetic, bent molecule with C₂ᵥ point group symmetry.
context_section_description: Nitrogen dioxide is a chemical compound with the formula NO
  ₂. It is one of several nitrogen oxides. NO
  ₂ is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use primarily in the production of fertilizers. At higher temperatures it is a reddish-brown gas. Nitrogen dioxide is a paramagnetic, bent molecule with C₂ᵥ point group symmetry.
caption: (NO
  2) converts to the colorless dinitrogen tetroxide (N
  2O
  4) at low temperatures and reverts to NO
  2 at higher temperatures.
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