Can iodide dissolve in organic solvent?
Can iodide dissolve in organic solvent?
Is it only I2 can dissolve in it but I- can't?
any other cases like this need to be noticed?
THX
回答 (2)
simply, iodine,I2, has weak van der waals' force between iodine molecules
and those organic solvent has weak intermolecular force(van der waals' force)
, so their forces are comparable and so iodine dissolve in organic solvent.
While I- ions(in ionic compound), has strong ionic bonds which is not comparable to weak intermolecular force, so they are immiscible.
To remind you a skill, when attempting this type of question, you should identify their BOND WITH STRUCTURE.
參考: my chemical konwledge
To the poster above me: I won't call 'chloroform' a 'NON-POLAR solvent'!!! It has a polarity index of 4.1! Compare this to hexane, which has a polarity index of 0 - now THAT is NON-POLAR!!! In fact, a lot of organic compounds will dissolve in chloroform (that's how we run NMRs as well, with NMR chloroform!), so you can see how powerful chloroform really is.
Iodide - an ion with a negative charge, is insoluble in organic solvents, simply due to the -ve charge. Rememeber, that anything that carries a charge, either +ve or -ve will be WATER SOLUBLE. To get I- in solution we usually need to have it as an inorganic salt in water for I- to be disassociate.
Iodine is soluble in most organic solvents because it doesn't carry a charge.
Remember:
No charge - organic solvents soluble
Charged - water soluble
參考: Me
收錄日期: 2021-04-13 15:46:45
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