Q » How does ammonia addition form monochloramine?

John

03 Nov, 2025

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A » Monochloramine forms when ammonia is added to water containing chlorine. In this process, chlorine reacts with ammonia in a controlled environment to produce monochloramine, which serves as a disinfectant in water purification. This reaction is preferable in some cases over chlorine alone because monochloramine is more stable and produces fewer disinfection byproducts, making it a safer and longer-lasting option for maintaining water quality.

Michael

03 Nov, 2025

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A »Ammonia addition forms monochloramine by reacting with free chlorine. The reaction between ammonia (NH3) and hypochlorous acid (HOCl) produces monochloramine (NH2Cl), a disinfectant used in water treatment. This process is known as chloramination, which helps maintain disinfectant residual in distribution systems while reducing disinfection byproducts.

David

03 Nov, 2025

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