how anti chlorine works
Answers
Answered by
0
When you add chlorine to water you get hypochlorous acid which reacts with the amines (in all proteins) and forms monochloramine. When you add more chlorine you get dichloramine and even more you get trichloramine. All these (and other reactions) form part of the "chlorine demand" in the water. You cannot get free available chlorine until this "chlorine demand" is satisfied. Therefore when the reaction is pushed towards trichloramine there will be virtually no monochloramine present. In the US they treat the water with monochloramie (made by reacting chlorine with ammonia) because chlorine will react with other impurities in the water and form some compounds that are not so nice (such as acetone) where as monochloramine will not. Monochloramine is not as effective in treating water as chlorine as is used in NZ but is still a strong oxidising agent.
When people complain that the chlorine in a swimming pool is too strong and it is burning their eyes the problem usually is that the free available chlorine has been used up by contaminants in the water (such as urea) and this has pushed the chloramines back towards the monochloramine and this is what is burning their eyes. The problem is fixed by adding more chlorine.
When you allow water to stand or aerate it to get rid of the chlorine the chloramines all move back to monochloramine and this will react with your fish the same as an under chlorinated swimming pool will with your eyes.
Chlorine and all chloramines can be converted to more harmless chemicals with the addition of sodium thiosulphate. Flourine is not added to drinking water, flouride is sometimes.
Drinking water will contain various impurites that add to the chlorine demand and will form chloramines
When people complain that the chlorine in a swimming pool is too strong and it is burning their eyes the problem usually is that the free available chlorine has been used up by contaminants in the water (such as urea) and this has pushed the chloramines back towards the monochloramine and this is what is burning their eyes. The problem is fixed by adding more chlorine.
When you allow water to stand or aerate it to get rid of the chlorine the chloramines all move back to monochloramine and this will react with your fish the same as an under chlorinated swimming pool will with your eyes.
Chlorine and all chloramines can be converted to more harmless chemicals with the addition of sodium thiosulphate. Flourine is not added to drinking water, flouride is sometimes.
Drinking water will contain various impurites that add to the chlorine demand and will form chloramines
Similar questions