testimento - 6-7-2013 at 00:08
The wiki cites that several chloro compounds can be made by thermal reaction on methyl chloride. Methyl chloride itself is formed with methanol
reaction with hydrogen chloride on alumina catalyst (=distill meth and hcl over al2o3 at 350C).
On general, chlorocompounds can be manufactured as following:
DCM is produced by treating either methyl chloride or methane with chlorine gas at 400–500 °C. At these temperatures, both methane and methyl
chloride undergo a series of reactions producing progressively more chlorinated products.[1]
CH4 + Cl2 → CH3Cl + HCl
CH3Cl + Cl2 → CH2Cl2 + HCl
CH2Cl2 + Cl2 → CHCl3 + HCl
CHCl3 + Cl2 → CCl4 + HCl
The output of these processes is a mixture of methyl chloride, dichloromethane, chloroform, and carbon tetrachloride. These compounds are separated by
distillation.
Methane is quite difficult to produce for garage chemist, but methyl chloride can be made quite straightforward. That gas can be lead through boro or
quartz tube heated up to required temp to obtain all the prementioned chlorocompounds, that can be then separated upon fractional distillation.
So much for the hassle with diluted hypochlorite, acetone and other gunk.
sankalpmittal - 10-7-2013 at 05:16
So, what is your question ?
:p
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[Edited on 7/10/13 by bfesser]
bbartlog - 10-7-2013 at 06:51
I think you'll find that CHCl3 at least is far more conveniently prepared by 'the hassle with hypochlorite, acetone and other gunk'. Your proposal
requires quite some process controls (two gas flow rates and the reactor temperature) together with the construction of a setup that will withstand
hot chlorine gas, condensers, fractionation, etc... by the time you get to the point where your savings in feedstock costs justify your setup, you'll
likely be in violation of local environmental laws :-)
But if you want to do it for fun, by all means go for it.
ScienceSquirrel - 10-7-2013 at 09:31
The madness of the science is undoubtable.
Hurree Jamset Ram Singh
testimento - 10-7-2013 at 16:12
Well I dont see it so difficult, you only need borosilicate or quartz tube for the point where the gases are heated up, all other you can make out of
PVC tube. If you got the chlorine electrolysis cell already and other stuff, the price for making this is merely getting it done.
AndersHoveland - 10-7-2013 at 16:40
Some compounds can be easily chlorinated at room temperature. Acetone easily reacts with chlorine, especially at lower pH.
Nitromethane is easily chlorinated at higher pH. In both these examples, the reaction mechanism proceeds through tautomers.
And of course, unsaturated hydrocarbons react with chlorine. (better in this case not to have any water in the reaction) Propylene reacts with
chlorine to form 1,2-dichloropropane, while a turpentine soaked cloth will burst into flames if chlorine is passed over it.
Ethanol can be chlorinated to either chloroform, chloral hydrate, or ethyl hypochlorite, depending on reaction conditions. The reaction mechanisms
here are more complex.
[Edited on 11-7-2013 by AndersHoveland]