CBSE Class 9CBSE
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Separating the Components of a Mixture - Separate a Mixture of Salt and Ammonium Chloride

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Separation of ammonium chloride and salt by sublimation:-

As we know that ammonium chloride is a sublime. So, we will separate the mixture of salt and ammonium chloride by sublimation.

Keep the mixture in a china dish and put an inverted funnel on it.

Tightly pack the stem of the funnel with the cotton plug.

Now, put this arrangement on a tripod stand with wire gauze.

Heat the mixture. After some time, we see that ammonium chloride undergoes sublimation and changes into vapour.

We will get the salt separately in a china dish. Now, allow the vapours to cool for a while and we 'll see that ammonium chloride gets collected near the stem of the inverted flask

 

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