Chlorine removal
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Now, the solvent dichloromethane is being distilled under reduced pressure; it contains a certain amount of chlorine gas, which is released during distillation. There is a secondary condenser after that. I want to know whether the chlorine gas will accumulate at the top of the condenser or be removed by the vacuum – how can this chlorine gas be eliminated?
It should be to add spray washing after the true pump is emptied
It will definitely be sucked away by the vacuum, so it’s better to treat the exhaust gas after the pump!
Under vacuum, although chlorine has a certain solubility, it will precipitate out; therefore, pre-treatment with a vacuum pump is necessary.