Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: isshin on September 15, 2021, 05:51:20 PM
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The bottle contains 100mL of a solution labelled as phosgene solution 15wt. % in toluene. I need 5mmol of phosgene, which equals to 0.4946g. So, I am wondering how much solution should I draw up from the bottle to have 0.4946g of phosgene? The density of the entire solution displayed on the bottle is 0.924 g/mL
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It means the solution is 15 % by weight of phosgene. I.e., if you were to weigh out 100 g of the solution, 15 g would be phosgene and 85 g would be solvent.
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Gotta say, I'm kind of terrified for someone who doesn't know how to sort this out on their own to be handling a phosgene solution. It is REALLY hazardous stuff, and that sort of calculation is something an experienced organic chemist does 3x a day.
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Yes, it was used as chemical weapon in ww2.
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I have worked with phosgene. It is not to be trifled with. You can inhale a lethal amount and not know it until the symptoms begin a day or so later. If you are uncertain about these things, be sure and get someone experienced to help you.
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You can use triphosgene in most cases, this material is a solid and easy to handle. Fumehood is always necessary.