kazaa81
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Butane (C4H10) experiments...
Hallo to all,
recently, I've bought some equipment which make me able to work with presserised gases stored in bottles like butane refillers.
Can anyone told me any experiment which can be conducted with butane (C4H10)?
I'm watching camphor which melts in liquid n-butane at some celsius degrees below zero...that's fun! 
Ok, thanks at all for help!
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kazaa81
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.
Hi,
now I'm going to sleep, good night to everyone!
PLEASE post ANY idea, ex. synthesis of butane omologues (inferior and superior) from it, just to give an idea....post everything (interesting) in
which butane can be used.
Please maintain "live" this section of forum with our ideas!
Have fun with butane!
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neutrino
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You could always use it for extraction of things from plant matter. I’m pretty sure that capsaicin (the chemical that makes things spicy) is soluble
in butane.
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Skinflint
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It would be fun to brominate it with liquid bromine, but this would probably be quite energetic and difficult to do. You could then try to seperate
the less volatile products.
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BromicAcid
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Bromination of butane at 127 C and in the presence of UV light favorably leads to 2-bromobutane (98.2%) and the remainder is regular bromobutane.
I'm sure in excess you could force it to go further, but its not really that reactive expecially if you compare it to chlorine.
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Esplosivo
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BromicAcid, or anybody, do you known what position is favoured on reaction of chlorine and butane? A doubt a mono-substitution can be achieved with
the vigorous chlorine but a mixture of halogenoalkanes would be quite useful as a solvent. The prep is quite easy, as a source of UV I've got the
sun and for the Cl2 I've always used he rxn between KMnO4 and HCl. Thanks for the help.
Theory guides, experiment decides.
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sparkgap
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The secondary positions (i.e., the two carbons in between) are preferentially attacked. The radicals corresponding to those positions are stabilized
by the surrounding groups.
In short, your resulting mixture of chlorinated butanes will most probably have most of them chlorinated at carbons 2 and 3.
Hope this helps.
sparky (^_^)
"What's UTFSE? I keep hearing about it, but I can't be arsed to search for the answer..."
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kazaa81
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Many thanks!
Hi,
many thanks to everyone who have helped me!
You have talked about butane reacting with chlorine, this reaction seem feasible for me, even because I've finished to build my homemade
"kipp" equipment.
It is a airtight flask connected with a 3 exit link: one inserts in the flask's gum cap, one is used to insert the reagent in the flask (the one
which starts reaction) and one is linked to a small plastic tube attached to a bubbler.
Can anyone explain more deeply how works the reaction?
Please add more, even how butane reacts with other compounds.
Thanks at all for help!!
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BromicAcid
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Photochemical chlorination of n-butane:
CH3CHClCH2CH3 (75%) @ 30C
CH3CH2CH2CH2Cl (25%) @ 30C
Works best with blue light or shorter wavelengths, inital step is rupture of the Cl-Cl bond and free radical attack. As you can see compared to the
yields above with bromine, bromine is much more selective about attacking butane then chlorine is. Separation of these two compounds would probably
prove very difficult though along with keeping the chlorine to butane ratio nice and even.
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kazaa81
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thanks..
Hi,
I haven't much time to spend in the net,
so add more, please.
ANY info. is welLcomed!
Thanks at all for infos!
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