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chloramine

American  
[klawr-uh-meen, klohr-, klaw-ram-een, kloh-] / ˈklɔr əˌmin, ˈkloʊr-, klɔˈræm in, kloʊ- /

noun

  1. an unstable, colorless liquid, NH 2 Cl, with a pungent odor, derived from ammonia.

  2. any of a class of compounds obtained by replacing a hydrogen atom of an =NH or −NH 2 group with chlorine.


chloramine British  
/ ˈklɔːrəˌmiːn /

noun

  1. an unstable colourless liquid with a pungent odour, made by the reaction of sodium hypochlorite and ammonia. Formula: NH 2 Cl

  2. any compound produced by replacing hydrogen atoms in an azo or amine group with chlorine atoms

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

chloramine Scientific  
/ klôr′ə-mēn′ /
  1. One of three bactericidal compounds that form when chlorine and ammonia react in water. Chloramines are used to purify drinking water, since they are more stable than chlorine and produce fewer harmful by-products.

  2. Any of various organic compounds containing a chlorine atom attached to a nitrogen atom, especially one of three sodium salts that are used as antiseptics and germicides. The most widely used is called chloramine-T.


Etymology

Origin of chloramine

First recorded in 1890–95; chlor- 2 + amine


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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

If water remains stagnant in a reservoir, there is a risk that the disinfectant, chloramine, will break down and chlorine will evaporate, leaving behind ammonia that could foster bacterial growth in the water supply.

From Los Angeles Times ● Jan. 10, 2025

The researchers have now identified chloronitramide anion, chemically expressed as Cl-N-NO2−, as an end product of inorganic chloramine decomposition.

From Science Daily ● Nov. 21, 2024

Inorganic derivations include chloramine, NH2Cl, and hydrazine, N2H4:

From Textbooks ● Feb. 14, 2019

People vary a lot in how sensitive they are to both the smell and the irritating effects of chloramine.

From Slate ● May 27, 2016

As tank B was previously used as a bleach storage tank, the change from hypochlorite alone to chloramine necessitated very little expense.

From Chlorination of Water by Joseph Race

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