Acid derivatives isosianurik Acid dikloroisosianurik and trikloroisosianurik have this level of chlorine-free very high, but because of low solubility of the acid in the water, the salts Na its more commonly used for disinfection, it is available in powder form and had higher levels of chlorine-free rather low (eg Na dikloroisosianurat, 60%). These compounds as well as khloramin, relatively expensive, ...
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