How would you separate a solid mixture of iodine and magnesium iodide such that...?

Question

...such that you could obtain the iodine and dry crystals of magnesium iodide.

The last question I have for my chemistry homework. Help or hints appreciated. =)

Answer 1

I'm not very sure if this would work, what do u think? :

since iodine is covalent compound, it is not soluble in water. Magnesium iodide however is soluble, so u can add water to the mixture. When the MgI2 has completely dissolved, u can filter the mixture to obtain iodine(residue). Evaporate the filtrate and allow crystallisation to occur. Wash the MgI2 crystals with a little cold water and dry. (:

Answer 2

the 1st answer i had in techniques became that of jorganos. choose for it. a much less complicated technique may be to place the iodine and salt mixture in a beaker. conceal the beaker with an inverted Petri dish (an eye fixed fastened glass will additionally do). positioned some ice on magnificent of the Petri dish. place the entire setup on a warm plate or another heat floor.A flat iron will do, too. yet be careful. turn on the warm plate and iodine will elegant and then condense as organic iodine crystals in the Petri dish. Then all you need to do is scrape off the crystals. No sweat! and no solvents too!

Answer 3

Treat the mixture with carbon tetrachloride or benzene. This would dissolve the iodine. That leaves magnesium iodide.