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I've been trying to identify this piece of glassware for ages now. I've been combing the internet and can't seem find anything similar. It looks like some kind of adapter/collecter/trap that sits on the pot and the condenser goes on top.

looks like some kind of adapter that sits on the pot and the condenser goes on top

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    $\begingroup$ The picture looks like an upscaled screenshot of a video hosted on YouTube. Would you mind sharing the URL? So far from the look of it I'd say it's a custom-made piece of glassware, but the context might help. $\endgroup$
    – andselisk
    Nov 14, 2017 at 0:26
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    $\begingroup$ thank you. i will find the video and post a link of it. regards, james $\endgroup$
    – j.doe
    Nov 14, 2017 at 0:38
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    $\begingroup$ It is a collector indeed. For small amount of distilled target $\endgroup$
    – Alchimista
    Nov 14, 2017 at 10:32

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This glassware is used to separate /remove the light phase from a biphasic (immiscible) liquid mixture. This can be used primarily to enhance liquid-liquid extraction from the light phase to the denser phase. As a mixed distillate collects, the denser phase will eventually siphon back through the side-arm to the flask below and the light phase remains in the collector.

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