"Tear gas"

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Tear gas is a chemical gas that affects the mucosal tissues of the respiratory system and makes the eyes tear. Used to control protests. It was formerly used on the battlefield, but its use in war is now banned under the Chemical Weapons Treaty.

Species of tear gas
There are many kinds of tear gas, which are named after the elements they contain.

CN (Chloroacetophenone): It is the most common substance for the production of tear gas. It is solid at room temperature and evaporates with the heat of the explosion. It is soluble in organic solvents, which is why it is the raw material in spray-based tear gas launchers (known as blowers). It does not react with water, which makes it easy to blend with fire pump water in suppressing protests. It was named after the U.S. Army. It was first prepared in 1871 by German chemist Grebe and first used in late World War I by Americans.

CS (Orthochlorobenzalmalonitrie): It replaced the widespread CN for two reasons. The first and most important is that regarding CN it was observed that protesters developed tolerance in substance and thus reduced its effect. The second reason is that it has a relatively low melting point (58 degrees C) and could thus be used more easily by the British in the tropical climate of their colonies. It was created by British Corson and Stockton in May 1928. Its production began in the 1950s by the Chemical Defence Experimental Establishment company in Porton, England. Its first application was made by the British troops in Cyprus in 1961.

CR (Dibenzo-1,4-oxazephine): It is also prepared by Chemical Defence Experimental Estate. The first references to this substance were made in 1962. His exact qualities are hidden in great secrecy. It is said to be much more effective than CN and CS.

OC (Oleoresin Capsicum): It is widely known under the name pepper spray. It is a natural substance and is extracted from cayenne peppers (including its name). When it is launched it does not evaporate, such as the above elements, which is why direct contact with the vulnerable points and mucous membranes of the protestor is required to be effective. It was first sidelined in 1930. It was first used by American police in the 1970s. After 1989 it is used massively by the FBI.

CN/CS, CN/OC, CS/OC: Also possible mixing of the above elements, which increases their poisonous effect. More widespread involvement is OC/CS, which is called an enhanced dose.

The use of tear gas can be done in many forms.

With a tear gas grenade. It works in a similar way as a grenade. After its release and casting, the grenade begins to release the tear gas into