By Sublimation.
One method to separate iodine crystals from a mixture of iodine and sand is by using sublimation. Heat the mixture, and the iodine will sublimate (turn into gas) leaving the sand behind. The iodine gas can then be collected and cooled to form iodine crystals.
First heat the mixture; the iodine will sublime and turn to a vapor which can be collected. Then add water to the remaining salt/sand mixture; the salt will dissolve but the sand will not. Finally, evaporate the water to obtain the solid salt.
Since each substance has unique chemical and physical properties, use these to separate each... specifically we will use the solubility of these substances. First, drain the liquids from the mixture (this will contain saltwater, and a "tincture" or solution of alcohol and iodine) leaving only the sand and iron filings (which have no solubility in either water or alcohol). Next, use a magnet to separate the iron filings from the sand - (2 down - 4 to go) Since the salt is dissolved in water (it does not dissolve in alcohol) , and the iodine is dissolved in the alcohol (it does not dissolve in water), separate the two (the alcohol/iodine solution is the one floating on top of the saltwater as it has a lower specific gravity) Then, distill the saltwater into fresh water and salt crystals (4 down - 2 to go) Similarly distill the tincture of iodine into alcohol and iodine crystals (all 6 complete)
A compound containing sand and gold could be a mixture of the two substances, where the gold particles are mixed with the sand particles. If water and iodine are added to this mixture, the water could dissolve the iodine to form a solution, leaving the sand and gold particles unchanged.
Iodine is a chemical element, while sand is a naturally occurring granular material made of finely divided rock and mineral particles. Iodine is a non-metal with various industrial and health applications, while sand is commonly used in construction and landscaping.
One method to separate iodine crystals from a mixture of iodine and sand is by using sublimation. Heat the mixture, and the iodine will sublimate (turn into gas) leaving the sand behind. The iodine gas can then be collected and cooled to form iodine crystals.
First heat the mixture; the iodine will sublime and turn to a vapor which can be collected. Then add water to the remaining salt/sand mixture; the salt will dissolve but the sand will not. Finally, evaporate the water to obtain the solid salt.
sewing and grainnize
Add sufficient water to dissolve the ammonium chloride. Neither the iodine nor the sand will dissolve.Filter out the solids.Evaporate the ammonium chloride from the solution.Heat the solids gently in a retort to sublimate the iodine and recover it.
First heat the mixture; the iodine will sublime and turn to a vapor which can be collected. Then add water to the remaining salt/sand mixture; the salt will dissolve but the sand will not. Finally, evaporate the water to obtain the solid salt.
how can we separate iodine and napthelena
Well every school kid knows about the 'cold finger' separation technique. Iodine changes from a solid straight to a gas when heated. It sublimes. So heat the sand/iodine mixture in a pyrex tube or flask which has a 'cold finger' inserted. The hot iodine gas will rise, hit the cold finger and form pure solid iodine crystals on the cold finger. Collect from the finger. This really is bog standard school kid chemistry.
Iodine can be extracted with ethanol.Sand is not soluble in water and can be separated by filtration from the water mixture.Sodium chloride remain in solution; heating the solution crystalline salt is obtained.
Iodine is soluble in hexane.
Iodine is not contained in Sodium Chloride, so can not be removed from it. I am thinking you wish to separate a mixture of Iodine and Sodium Chloride. Heat the mixture to 114C and the iodine will melt. Iodine can be vaporized and distilled. Under certain conditions, Iodine can react with other chemicals to create unstable explosive compounds. So be careful out there.
Since each substance has unique chemical and physical properties, use these to separate each... specifically we will use the solubility of these substances. First, drain the liquids from the mixture (this will contain saltwater, and a "tincture" or solution of alcohol and iodine) leaving only the sand and iron filings (which have no solubility in either water or alcohol). Next, use a magnet to separate the iron filings from the sand - (2 down - 4 to go) Since the salt is dissolved in water (it does not dissolve in alcohol) , and the iodine is dissolved in the alcohol (it does not dissolve in water), separate the two (the alcohol/iodine solution is the one floating on top of the saltwater as it has a lower specific gravity) Then, distill the saltwater into fresh water and salt crystals (4 down - 2 to go) Similarly distill the tincture of iodine into alcohol and iodine crystals (all 6 complete)
sewing and grainnize