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Chloramides (sp)

Discussion about fish health and water chemistry.

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Post Wed May 24, 2017 10:24 pm
Bob1 Level 6 Member
Level 6 Member

Posts: 604
Location: Farmington
What exactly are chloramides?

Post Fri May 26, 2017 2:06 pm
Passionfish Level 20 Member
Level 20 Member

Posts: 12302
Location: apple valley, mn
Choramide starts as free chlorine (Cl2) and ammonia (NH3). One of the hydrogens bound to nitrogen is removed and a chlorine atom binds to the nitrogen. This chloramide is called chloramine. As more hydrogens are replaced with chlorine, other chloramides form.

In the aquarium hobby, we are concerned with either free chorine or chloramine as local water works add these chemicals to tap water to keep it safe from bacteria living in tap water.

If tap water has a pH of 7 or less, adding chlorine is enough to kill bacteria. We all can ingest a small amount of chlorine with no harm.
However, if tap water pH is greater than 7 then free chlorine begins to react with carbon molecules in the water and even small amounts of these chlorinated carbon molecules maybe harmful to ingest. The way to prevent formation of chlorinated carbon compounds is add ammonia. Chlorine prefers to bind to ammonia forming chloramine and thus will not bind to carbon molecules. Small amounts of chloramine are safe to drink and chloramines kill bacteria.

Fish do not do well with either chlorine or chloramine and various products are required to be added to aquarium water to neutralize or lock up chlorine and chloramine so that fish do not die.
Like a complete unknown


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