Cyclohexane and naphthalene can be separated via distillation. If you know the boiling points of cyclohexane (about 81 degrees Celsius) and naphthalene (about 218 degrees Celsius), then you can distill the mixture of both compounds and let the cyclohexane boil off first and naphthalene will boil off last due to its high boiling point. This can be done using a distillation apparatus. And as a suggestion, using gas chromatography would be very helpful if you take samples of the distillation of certain periods of time. Gas chromatography shows what compounds are in a sample, the amounts of the compound per sample, and how long the compound took to boil out of the sample. As time progresses, the amount of cyclohexane should decrease and naphthalene should increase with each sample taking.
Take naphthalene and graphite in a beaker and slightly heat them together.
you will observe that naphthalene will sublime and graphite will left out in the beaker.
by melting them through distillation
by the method of sublimation
thank you
By evaporation of the water and crystallization of the salt.
Sublimation
Use a magnet to remove the iron filings... Warm (do not boil) the remaining mixture to evaporate the naphthalene.
Salt is soluble in water.Sulfur is soluble in carbon disulfide.Sand is insoluble.
One way is to dissolve the ammonium chloride in water, then recover the ammonium chloride by evaporation; the naphthalene will not dissolve in water in any substantial quantity.
by melting them through distillation
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To separate naphthalene balls from sodium chloride, simply add water until all the sodium chloride is dissolved. Then either filter, or just pour off the solution, and the naphthalene balls will be left behind. Naphthalene is very insoluble in water, and sodium chloride is very soluble in water.
By evaporation of the water and crystallization of the salt.
An example for an equation for the reactions used to separate and recover m-nitroaniline benzoic acid and naphthalene is RCO2H + NaOH RCO2 - Na+ (water soluble salt) + H2O (eq. 1)
A common process one can use to separate salt from water is distillation.
Sublimation
by sublimation
Simply evaporate the ammonium chloride and the common salt will be left behind
Iron filings removed magnetically. Water will dissolve sodium chloride and suspend sand. Sand can be filtered out of the solution, and salt reovered by evaporation of water. Naphthalene can be removed separately if necessary by solution of mixture in alcohol.
Salt is soluble in water, sand is not soluble; filter the solution.
Use a magnet to remove the iron filings... Warm (do not boil) the remaining mixture to evaporate the naphthalene.