BTW - SWIAs biggest problem smellwise is this strange high-boiling "side-product" from this grignard rxn.
BzCl is nasty, but ceases to smell after a few days - but this stuff has a really disgusting smell of rotten eggs, citric acid and who knows what else... (not describeable)
And even the glassware used still smells from that stuff, although several cleaning attempts with acids, lyes and even DCM, ether, toluene and ethyl formate were done! DON'T ATTEMPT TO DISTILL THAT STUFF EVEN WITH THE BEST VACUUM YOU CAN IMAGINE! At least I seriously wouldn't recommend it if you want to reuse your glassware...
Greetz A