Urgent! Urgent! Urgent! Free chlorine measurement!
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In chlor-alkali plants, free chlorine in brine is determined directly by the iodometric method. But now there are other ions interfering; it is suspected to be iron ions, as ions such as iron can also displace iodine, causing it to turn blue when in contact with starch. Free chlorine is measured in the same way; if there is free chlorine, it will also turn blue. Under normal operating conditions in standard processes, the presence of free chlorine in saltwater is not allowed. So how can free chlorine be removed? How to tell the difference?
Seniors, moderators, come and comment on my post!
After thinking about it, there really isn’t any good solution.
Online analysis to detect free chlorine and iron ion content in saline/chloride solutions. Prevention of safety and pipeline corrosion V 15800989352