You-know-who
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Okay, I remember from AS that we used either CCl4 or hexane to separate the two layers in the identification of the halogen in the halogenoalkane (the reaction of silver nitrate with ethanol and the halogenoalkane, producing precipitates of AgCl, AgBr or AgI). And for the recrystallisation of methyl-3-nitrobenzene, we dissolve it in hot ethanol. The point is, when do I use ethanol, hexane or CCl4 as a solvent for organic compounds? And which particular organic compounds dissolve in which?
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charco
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(Original post by You-know-who)
Okay, I remember from AS that we used either CCl4 or hexane to separate the two layers in the identification of the halogen in the halogenoalkane (the reaction of silver nitrate with ethanol and the halogenoalkane, producing precipitates of AgCl, AgBr or AgI). And for the recrystallisation of methyl-3-nitrobenzene, we dissolve it in hot ethanol. The point is, when do I use ethanol, hexane or CCl4 as a solvent for organic compounds? And which particular organic compounds dissolve in which?
Ethanol is totally miscible with water, hence no layers. It is a good solvent when you want both organic and inorganic to react together.

Hexane is non-polar and dissolves non-polar substances.
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You-know-who
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(Original post by charco)
Ethanol is totally miscible with water, hence no layers. It is a good solvent when you want both organic and inorganic to react together.

Hexane is non-polar and dissolves non-polar substances.
Thank you so much for clearing that up.
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Infraspecies
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CCl4 is basically never used. It's an awful chemical.

DCM is more prevalent.
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You-know-who
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(Original post by Infraspecies)
CCl4 is basically never used. It's an awful chemical.

DCM is more prevalent.
DCM? Which is...?
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charco
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(Original post by You-know-who)
DCM? Which is...?
dichloromethane
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