labphoto: An addition funnel after a bromination with elemental bromine. Elemental bromine besi

labphoto: An addition funnel after a bromination with elemental bromine. Elemental bromine beside it’s quite toxic it is also volatile, so if you are working with it always wear proper protection and use a fume hood. Interesting that the word bromine is from Greek: βρῶμος, brómos, meaning “strong-smelling” or “stench”. When the addition funnel looks like this it is recommended to wash it with a proper solvent what dissolves the bromine and could be transferred into the reaction mixture.  Important note:  Don’t clean Br2-contaminated glassware with acetone, use alcohol. From the reaction of bromine and acetone bromoacetone is generated what is a potent irritant/lacrymator. -- source link
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