Chemical Forums
Specialty Chemistry Forums => Citizen Chemist => Topic started by: science2000 on November 17, 2005, 03:01:21 AM
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I want to dissolve some sulfur. I don't have anything fancy, so I can either use denatured alcohol, toluene, or acetone. What's the best?
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Sulfur really doesn't dissolve all that easily in much of anything, but since it is completely non-polar your best bet would be to try the toluene. (Though I wouldn't get my hopes up too much).
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Could sulfur be soluble in CS2 :P ? That's only a thought.... ??? :(
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Sulfur is soluble in CS2, but I have no way of accessing this. It's too toxic anyways.
what about butane from cigarette lighters? That's very nonpolar and much safer than toluene.
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Sulfur is soluble in CS2, but I have no way of accessing this. It's too toxic anyways.
what about butane from cigarette lighters? That's very nonpolar and much safer than toluene.
Well..it's a bit toxic, yeah, but if you have elementar sulfur you can make it just by mixing the sulfur with carbon and heating it.
C + 2S ----Heat------> CS2
Anyway, I'd also think that butane is not convenient, because you have to work under pressure and because of the fire hazard! Toluene is a good solution.
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Well..it's a bit toxic, yeah, but if you have elementar sulfur you can make it just by mixing the sulfur with carbon and heating it.
C + 2S ----Heat------> CS2
Anyway, I'd also think that butane is not convenient, because you have to work under pressure and because of the fire hazard! Toluene is a good solution.
Forget about the synthesis of CS2 at home. It requires really high temperatures.
Toluene is a nice alternative, but only when hot. I've done that personally. Have a look at my website, where the procedure is outlined. It can be scaled up safely.
http://woelen.scheikunde.net/science/chem/exps/S+toluene/index.html (http://woelen.scheikunde.net/science/chem/exps/S+toluene/index.html)
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Citing butane as a terrible fire hazard, then suggesting synthesis of CS2, now that is something I have to laugh at a little ;D
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You're site, woelen, is what inspired me to want to try this experiment. Supposedly sulfur is also somewhat soluble in acetone and other solvents too. I want to use the safest solvent that gives the best results, so I asked. Is toluene ALOT better to use than acetone? Heating these flammable solvents sounds kinda dangerous.
What conditions would ignite butane...besides flames and sparks and heat?
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Toluene is MUCH better than acetone for dissolving sulphur. Sulphur only dissolves in tiny amounts in acetone, but it hardly is worth to mention. Besides that, acetone is more volatile and more flammable. I also did the experiment with acetone, but it simply sucks.
I also did the experiment with ligroin (a mix of low-boiling alkanes, 40-60 degrees centigrade). Sulphur does not dissolve in that at any appreciable amounts. I expect it to be the same with butane.
Heating the toluene is not that dangerous in the way I did this.
I boiled water and then immersed the test tube with sulphur and toluene in the hot water. If you want to do the experiment on a larger scale, then you have to use an electrical water boiler and put your beaker with toluene and sulphur in that. Do NOT use open fire with this experiment.
Making CS2 yourself is VERY mad. CS2 is extremely flammable. Vapor of CS2, going over hot (boiling) water may be ignited already. Acetone, butane and toluene are childrens toys, compared to CS2. It is toxic like hell and flammable like hell.
Have a look at this thread at sciencemadness: http://www.sciencemadness.org/talk/viewthread.php?tid=1066
After you have read this, then you'll understand that making CS2 yourself is not feasible, unless you have a really well-equipped home-lab.