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[Sirius Black]

how to use sodium carbonate solution/bromine water and/or acidified potassium dichromate solution to distinguish b/w 1-butanol and cyclohexane?

Edit: could we just use acidified potassium dichromate solution oxidise butanol into butanopic acid and then use sodium carbonate to tell the acid...
If so. what would be essential conditions for the oxidation reaction of 1-butanol to occur?

 

[Jumbo Cactuar]

1-butanol (-C(-I)H2OH) -> butanal (-C(I)HO) + 2e- + 2H+
dichromate (Cr(VI)2O7)2- + 14 H+ + 6e- -> 2Cr3+ + 14H20

Are you sure it isn't cyclohexene?

C6H10 + Br2 -> C6H10Br2

If you were testing for either cyclohexane or 1-butanol, personally I'd add 12 times the amount of water. In the case of 1-butanol it will dissolve 9.625mL per 100mL of water. Cyclohexane is completely insoluble. If you can't see the layering add a few drops potassium chromate to either further distinguish the layering or oxidise the butanol. Cyclohexane is less dense than water, so look at the top! Also the solution will appear yellow in the presence of 1-butanol.

Or you could use any number of instruments to do the test.



1-butanol (CH3CH2CH2CH(OH))? Double bond?