Toxic susbtances list: inorganic chloramines

Inorganic chloramines consist of three chemicals that are formed when chlorine and ammonia are combined in water: monochloramine (NH2Cl), dichloramine (NHCl2) and trichloramine (NCl3). Inorganic chloramines, free chlorine and organic chloramines are chemically related and are easily converted into each other; thus, they are not found in isolation. Chloramines and free chlorine are released to the Canadian environment by municipal and industrial sources. They are used to disinfect drinking water and wastewaters and to control biological fouling in cooling water systems and at the intakes and outlets of utilities and industries (e.g., for zebra mussel control).

CAS (Chemical Abstract Service) registry number: 10599-90-3, 3400-09-0 and 10025-85-1.

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Chemicals Management Division
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Gatineau, Quebec
K1A 0H3

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