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Nitrogen dioxide

Nitrogen dioxide, NO2 is a reddish-brown coloured, highly toxic, poisonous, oxidizing gas with an irritating odour.

Pure nitrogen dioxide is used:

  • as a component of calibration gas mixtures for environmental monitoring systems and industrial hygiene gas mixtures
  • in semiconductor manufacturing processes.

Materials Compatibility
Metals: Stainless Steel; Carbon Steel.
Plastics: PTFE.

Technical Properties
Molecular Weight: 46.01
Specific Gravity (Air = 1): 1.59
Odour: Irritating
CAS Registry No.: 10102-44-0