Synthesis of Bromine
Posted 4 May 2005 - 06:29 PM
Posted 4 May 2005 - 08:13 PM
Make a solution of the NaBr and do electrolysis.
Yes, that's a great idea. But isn't there another way to produce bromine ?
Would this work ? :
2 NaBr + MnO2 + 3 H2SO4 ==> Br2 + 2 NaHSO4 + MnSO4 +2 H2O
And what should I use of equipment ? Should I do a destillation or ... ??
Posted 4 May 2005 - 09:41 PM
Posted 4 May 2005 - 09:44 PM
Posted 4 May 2005 - 09:49 PM
A better method of producing bromine is to oxidize the bromide ion via chlorine gas production. In fact, one trip to a pool supply store will get you everything you need. You can either generate the chlorine gas separately, or you can just generate it in-situ which is probably the easier thing to do. Just get some powdered super shock (Caldium hypochlorite), sodium bromide tablets, and hydrochloric (muriatic) acid. Mix the hypochlorite and sodium bromide in some water so that everything will be nicely dissolved. Then slowly add the hydrochloric acid. You will notice that the solution will start turning a reddish color as free bromine is liberated. You want to add the HCl slowly so that the solution doesn't overheat and you don't generate too much chlorine gas at one time. You will also want to have an excess of acid so that the bromine will remain as the free element. Then all you have to do is cool off the solution and suck out the bromine from the bottom of the beaker with a pipette. Just make absolutely sure you do this outside.
Posted 4 May 2005 - 10:58 PM
you could also use H2SO4. really important factor: MAKE SURE THE H2SO4 IS ONLY 25% OR SO. anything above 30% and youre pushing your luck. you dont want H2S to be evolved.
btw, jdurg, while it isnt smart to mix H2SO4 and H2O2, it is smart to do the following:
Posted 5 May 2005 - 12:24 AM
Posted 5 May 2005 - 12:39 AM
br would go up as a gas... it may be dense but not as dense as water
It's bp is only slightly higher than room temp at normal atmospheric pressure. If done in an ice bath it might form a layer on the surface if the method where you bubble Cl through it. First we went from talking about makingf iodine to bromine. This is a trend or something. What have you started Akcapr!
Posted 5 May 2005 - 12:44 AM
Posted 5 May 2005 - 01:36 AM
Posted 5 May 2005 - 02:07 AM
It exists only for a few nano seconds at the most and can be found in the decay chain of i think uranium.
Its just that there cannot be enough of it to be visible.
Posted 5 May 2005 - 08:45 PM
half-life of 210 At is actually 2 minutes. if you get an active enough alpha source you can produce enough of it to see; it's black. in fact, researchers have produced enough to perform some tests on it.
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