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.
To separate a mixture of sand, table salt, iron filings, and naphthalene, you can use a combination of physical methods. First, use a magnet to attract and remove the iron filings. Next, dissolve the salt in water, filtering out the undissolved sand and naphthalene. Finally, evaporate the water from the salt solution to retrieve the salt, leaving behind the naphthalene, which can be collected through sublimation if heated gently.
By evaporation of the water and crystallization of the salt.
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
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.
Naphthalene can be separated from common salt by sublimation since naphthalene sublimes at a lower temperature than common salt. By heating the mixture, naphthalene will turn directly from a solid to a gas, leaving behind the common salt as a solid residue. The naphthalene gas can then be cooled and collected back as a solid.
by melting them through distillation
To separate a mixture of sand, table salt, iron filings, and naphthalene, you can use a combination of physical methods. First, use a magnet to attract and remove the iron filings. Next, dissolve the salt in water, filtering out the undissolved sand and naphthalene. Finally, evaporate the water from the salt solution to retrieve the salt, leaving behind the naphthalene, which can be collected through sublimation if heated gently.
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.
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.
One way to separate naphthalene from sand is by sublimation. By heating the mixture, the naphthalene will undergo sublimation, turning into a gas and leaving behind the sand. The gas can then be collected and cooled back into solid naphthalene.
By evaporation of the water and crystallization of the salt.
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
Naphthalene can be separated from sodium chloride by sublimation. When the mixture is heated, naphthalene will sublimate, turning from a solid to a gas, and can be collected separately from the solid sodium chloride.
Sublimation can be used to separate naphthalene from sand. Naphthalene can be heated to change it directly from a solid to a gas, leaving the sand behind. The gas can then be collected and cooled to form solid naphthalene again.
To separate and recover m-nitroaniline, acid-base extraction can be used. The reaction involves the protonation of m-nitroaniline in an acidic aqueous solution followed by extraction with a base (e.g., NaOH) to form the water-soluble salt of m-nitroaniline. To separate and recover benzoic acid from a mixture, an acid-base reaction can be used by adding a base (e.g., NaOH) to the mixture to form the sodium salt of benzoic acid, which is water-soluble and can be separated by extraction or precipitation. To separate and recover naphthalene, sublimation can be employed. By heating the mixture, naphthalene can sublime (change directly from solid to vapor) and be collected separately from the other components.
One way is to slurry the solid mixture with water. The ammonium chloride will dissolve and the naphthalene will not. Ammonium chloride can then be recovered by evaporating the water solution of it that is formed.