Nitrous oxide Nitrous oxide Nitrous oxide, commonly known as laughing gas or nitrous, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. It is soluble in water. Nitrous oxide has significant medical uses, especially in surgery and dentistry, for its anaesthetic and pain reducing effects. Its name "laughing gas", coined by Humphry Davy, is due to the euphoric effects upon inhaling it, a property that has led to its recreational
CR gas People occupying an area in Notre-Dame-des-Landes against an airport project suspects the use of CR gas by French Police and Army on April 2018. In the late 1980s, CR was used in the townships in South Africa. It caused some fatalities, in particular among children. Because of its alleged carcinogenic properties, the United States does not utilize CR for riot control. The U.S. military classification for this chemical agent is combat class chemical weapon causing serious side-effects for humans. CR gas CR gas or dibenzoxazepine (also referred to as DBO), or its chemical name dibenz["b","f"][1,4]oxazepine, is an incapacitating agent and