Nitrous Oxide

**Definition:** Nitrogen oxide (N2O). A colorless, odorless gas that is used as an anesthetic and analgesic. High concentrations cause a narcotic effect and may replace oxygen, causing death by asphyxia. It is also used as a food aerosol in the preparation of whipping cream.

**Tree numbers:** - D01.362.635.625 - D01.625.550.550 - D01.650.550.587.650

**Synonyms:** - Laughing Gas - Nitrogen Protoxide