How one can separate ammonium chloride from a mixture containing ammonium chloride and sodium chloride?
Answers
Explanation:
There are way in separating mixtures of chloride salts such as that of sodium chloride and ammonium chloride. It can be done by crystallization, filtration, and sublimation. The easiest method among the three is separation by sublimation. Ammonium chloride sublimes upon heating. Actually, the sublimation is a decomposition of ammonium chloride forming ammonia and hydrogen chloride. Sodium chloride, on the other hand, doesn't sublime and has a higher melting point than ammonium chloride. If we want to separate the mixture, we have to heat up to 330-350 degrees Celsius and collect the gas that will be produced.
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Answer: by the process of sublimation
Explanation:) Ammonium chloride changes directly from solid gaseous on heating . So to separate mixtures containing a sublimable volatile component from a non-sublimable impurity i.e., sodium chloride, the sublimation process is used.
• Place the china dish over a wire gauze placed over a tripod stand.
• Cover the china dish with an inverted glass funnel and plug in a little cotton at the opening stem.
• On heating the mixture, white fumes evolve.
• Stop heating when the fumes stop rising and allow the funnel to cool.
• On cooling, remove the funnel and transfer the solid ammonium chloride sticking on the walls of funnel to a watch glass.