Detection of free chlorine in hydrogen chloride gas
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Online detector for free chlorine in hydrogen chloride gas
If anyone understands, please come and explain it; I’d like to learn more as well
Is there anything wrong with what the original poster said? When synthesizing hydrochloric acid, if there is an excess of chlorine gas, the hydrogen chloride gas will contain free chlorine, that is, chlorine in its elemental form. Don’t think that free chlorine is only mentioned in water quality standards; certain elements in gaseous form can also be referred to as free of that element, meaning they are not in a combined state. Free chlorine in hydrogen chloride can be determined by redox titration after alkaline absorption, or it can be detected using online ultraviolet photometry, as chlorine gas exhibits ultraviolet absorption.