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Centimeter
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You could also oxidize the isopropyl alcohol using sodium hypochlorite (Bleach) and acetic acid, although this would certainly introduce a great deal
of water. This whole thing seems crazy! I can’t imagine going through so much work to get acetone!
Now onto health hazards with using acetone. Acetone is able to penetrate into you blood stream quite easily. Subsequently it is capable of
transmitting things that it has dissolved into your body just by touching it. In fact, my father worked on a project in which he studied using acetone
solutions as potential spray-on inoculations. So be careful when cleaning glassware, especially when working with potential carcinogens.
Also, acetone is extremely bad for the environment. So I hope that everyone is disposing of their gallons of acetone properly!
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bio2
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......Also, acetone is extremely bad for the environment. ............
Acetone is produced by the human body is not very toxic
and is environmentally biodegradable.
This of course doesn;t mean it should be flushed down the toilet or indiscriminately
inhaled.
[Edited on by bio2]
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smuv
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| Quote: | | Also, acetone is extremely bad for the environment. |
Do you have a source for this?
According to this article, acetone seems pretty benign. For the quantities of acetone used in experimentation I think it would be reasonable to assume that
biodegridation would quickly remove the acetone from the soil (outlined in the above article). Additionally this article (and many others) show
acetone to be fairly benign to organisms; many of which simply metabolize acetone to produce carbon dioxide.
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prole
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Hey all. I can't believe nobody has mentioned the bisulfite adduct for purification of acetone (a ketone). It's in the library (here), check Vogel's
3rd. I imagine that would render your nail polish remover into ultra pure acetone.
I always distill my hardware solvents. They invariably contain particles and coloured impurities that are not noticeable until it's distilled. The
residues left after simple distillation range among cloudy, dusty, gold to green to yellow.
As an aside, I once heated a small amount of acetone in a test tube without a boiling stone and the whole lot vapourized and shot straight to the
ceiling. Funny thing was, it never hit the ceiling, it remained a gas. I had to change my pants after that. Ah, sweet ignorance!
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not_important
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Bisufite is an expensive way to purify a solvent, as it uses up the bisufite and base/acid used to destroy the addition compound. The complex with
sodium iodide was used to purify acetone back when it was a product of the destructive distillation of wood, methanol was the main contaminate.
These days fractional distillation, drying, and fractionating again will do a good job of cleaning acetone. Different methods of production, different
contaminates.
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prole
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@ not important: I agree, the expense and trouble may be prohibitive for large amounts. But since others are suggesting actually synthesizing
acetone, this isn't too far to go. Plus, it's fun.
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elementcollector1
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I have up&up acetone with impurity of an organic compound (don't have it in front of me, something like dihydroxyquinone)? Probably that's not it,
but according to Wiki when I looked it up, it remains solid well past the boiling point of acetone. There is no methylacetate or water in this
product, according to the label on the back. Any simple purification routes? I can distill if necessary, but I wanted to know if there's anything
simpler.
Does acetone catch fire when heated in a distillation apparatus?
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blogfast25
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Not if you heat it to boiling point and gently distill. Totally safe. Just make sure your condenser condenses all vapours so your work space doesn't
get to contain a lot of acetone vapours. The BP of acetone is so low you can use a steam bath as heat source, even safer!
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elementcollector1
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The steam bath idea worked beautifully. Incidentally, the actual impurity was denatonium benzoate. My boiling, crude acetone turned yellow-orange on
heating - is this the presence of this impurity? The distillate itself was very clear, almost identical to water in color and viscosity.
Definitely doing this again, soon I'll have liters of acetone on the cheap... >:D
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bellasmith
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That I know.
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blogfast25
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Quote: Originally posted by elementcollector1  | The steam bath idea worked beautifully. Incidentally, the actual impurity was denatonium benzoate. My boiling, crude acetone turned yellow-orange on
heating - is this the presence of this impurity? The distillate itself was very clear, almost identical to water in color and viscosity.
Definitely doing this again, soon I'll have liters of acetone on the cheap... > |
By distilling you concentrate whatever non-volatile crap in the re-boiler flask, which thus goes progressively more coloured as you distill off the
acetone. In commercial nail polish remover there's a whole range of stuff, besides DnaB, also a bit of oil, usually a dye, some water etc...
But a cheap source of acetone nail polish remover I wouldn't call! Techical acetone is cheap as chips... But it's a nice exercise in simple
distillation alright!
[Edited on 26-1-2013 by blogfast25]
[Edited on 26-1-2013 by blogfast25]
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