We had an old chap for organometallic chemistry
who would present all sorts of compounds with little snippets like 'this compound smells of freshly-cut grass, which is usually the last thing anyone who smells it comments upon.'
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Sat 13 Aug 2011, 14:20,
archived)
That's usually commented about cyanide
which smells of bitter almonds, but most people can't smell it until it is at a dangerously high level.
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Sat 13 Aug 2011, 14:55,
archived)
I can't smell it.
I work with the stuff a fair bit as well. H2S is a dodgy one - when you can't smell it any more it's either a) dispersed and you're safe or b) at a concentration that means you're already going to die.
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Sat 13 Aug 2011, 14:58,
archived)
The smelliest lab at my university was the one working on novel bonding of pnictogens
(Arsoles!)
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Sat 13 Aug 2011, 16:08,
archived)