Dichloramine is a reactive inorganic compound. It has the formula NHCl2. The yellow gas is unstable and reacts with many materials.[1] It is formed by a reaction between ammonia and chlorine or sodium hypochlorite. It is a byproduct formed during the synthesis of chloramine and nitrogen trichloride.


Dichloramine can be prepared by a reaction between chloramine and chlorine or sodium hypochlorite:[1]


Dichloramine reacts with hydroxyl ion, which can be present in water or comes from water molecules, to yield nitroxyl radical and the chloride ion.[2]


  1. ^ a b c Holleman-Wiberg: Lehrbuch der Anorganischen Chemie, 102. Auflage, Berlin 2007, ISBN 978-3-11-017770-1.
  2. ^ White, George Clifford (1986). The handbook of chlorination (2nd ed.). New York: Van Nostrand Reinhold. p. 169. ISBN 0-442-29285-6.