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Hexavalent
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Most low-molecular weight amines smell quite bad....'fishy' seems to be a suitable adjective a lot of the time.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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ScienceHideout
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I have to say that my favorites list goes, from best to worst,
1. Methyl Benzoate- Don't know why
2. Alpha pinene, reminds me of christmas
3. Methyl trans-cinnamate... jeez, I have a lot of esters on my list
4. Fatty acid methyl esters- really appetizing for some reason
5. Methyl salicylate- wintergreen
6. Chloroform- I like its sweetness, yet etherie volitility
7. Carbon tet- Yes... sorta fruity.
8. Vanillin
Yeah- once I tried to convince my gf to wear a little bit of methyl benzoate- she thought I was nuts... It does smell good, though!
My worst- from worst to bad are
1. Chlorine- I HATE IT... makes me want to gag just thinking about it
2. Ammonia- quite bad
3. Methylamine- Typical amine odor!
4. Benzaldehyde- Yes... It smells like cough medicine...
5. Formaldehyde- just plain old bad
6. GAA- vinegar is okay, I just don't like the whole room to be flooded with it!
7. Bromine- You know the smell
8. HCl- self explanitory
hey, if you are reading this, I can't U2U, but you are always welcome to send me an email!
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IPN
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Having worked a lot with triethylamine (sonogashiras in neat TEA) I dont know if I have just gotten used to it or what, but I kind of like the smell.
Worst smells I have come across are definitely thiophenol and benzoxazole. The latter is like a mix of pyridine and rubber, very nauseating.
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Hexavalent
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My least favourite class of compounds in this respect has to be either amines or thiols.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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SM2
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This is a difficult question. Subjective, and I haven't smelled even 1% of chemicals out there. By far my favorite is a mixture of indoles and some
other components, made by DuPont. They lightly oderize their country store with it, and it is subtle, yet amazing. Smelling directly from the jar,
it smells foul, like a sweet skunk, but in the right dilution, something magical happened.
Worst? methylmercaptan. I give credence to some of the gases used, for instance, in the semi's industry, certain hydrides, etc, but their effect is
primarily to make one instantly vomit, and secondarily, they smell god awful. But methylmercaptan smells like Tony Soprano eating an old philly sub
from his fridge, and not even chewing. Later, the gasses emanating from his anus (due to anaerobic fermentation). My idea of how to describe the
grim odour of methylmercaptan.
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SM2
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Oh yes, bromine has distinct fecal notes to it, no doubt.
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Mailinmypocket
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I'd hate to be the poor person who's "fecal notes" smell of bromine....
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haroldramis
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Haha, I actually loled at that.
My first time making Bromine I was hit with a small whiff taking the receiving flask off and stoppering it. This was done outside. The only 'fecal
note' that could have resulted would have been if I shat myself during the violent coughing, snotting, tearing fit that followed.
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Rogeryermaw
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obviously i have never smelled fluorine or astatine (seriously doubt anyone here ever has in any noticeable quantity) but all the other halogens have
distinct yet related odors. at least i thought so. iodine, chlorine, and bromine all have a somewhat similar aroma to them. not scatological but if
they became extremely potent, some people may crap themselves.....
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Adas
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Quote: Originally posted by Jor  | When are these sulfurated ketones formed? Good thing to know so I can avoid them at all cost. I really don't want to make such a thing by accident.
Yes by HCl/H2S/acetone, but any other reactions as well?
[Edited on 12-6-2009 by Jor] |
You can use P4S10, or maybe even Al2S3 (but I really doubt it).
I am quite curious how thioacetone smells.
Rest In Pieces!
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ScienceHideout
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Pyradine is pretty bad- just had to throw that out there...
CS2 smells like farts.
hey, if you are reading this, I can't U2U, but you are always welcome to send me an email!
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sargent1015
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acrylates... Just... Ick! All of them just persistently fill a room in seconds.
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Eddygp
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| Quote: Originally posted by IPN | Having worked a lot with triethylamine (sonogashiras in neat TEA) I dont know if I have just gotten used to it or what, but I kind of like the smell.
Worst smells I have come across are definitely thiophenol and benzoxazole. The latter is like a mix of pyridine and rubber, very nauseating.
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LOL when I read TEA I though it was triethylaluminium and I was completely paralysed!
there may be bugs in gfind
[ˌɛdidʒiˈpiː] IPA pronunciation for my Username |
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Oscilllator
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For some reason my solutions of potassium nitrate I make smell very nice, kind of sweet. I don't know if this is because of impurities, though.
As for bad smells, I got a nose full of ammonia and that was pretty bad, although it did clear my nose out quite well 
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VitaminX
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Best: Benzaldehyde smells wonderful, also EtOAc is my favorite solvent of all time
Worst: Pyridin is pretty bad, SOCl2, Trimethylamine, Triethylamine
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sargent1015
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Ethyl acetate makes me surprisingly hungry for some reason.
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DJF90
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I quite like the smell of NaBr and HBr; both smell kind of fruity to me. Absolutely fucking hate HCl (g or conc.) as it chokes me up and rusts the
shit out of anything ferrous in the vicinity. Even my old aluminium hotplate top showed signs of corrosion (as does any Al foil nearby). I try to
avoid it at ALL costs.
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Adas
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LOL, I get hungry when I smell cigarette smoke.
Rest In Pieces!
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mr.crow
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I made ethyl benzoate, that smells pretty nice. Distillation removed all the acrid notes and the pure product is just wonderful.
Impure KNO3 does have a sweet smell, weird. Salts shouldn't smell like anything.
Whatever is in nail polish is really nice. Tons of esters. Don't sniff it too much haha
Double, double toil and trouble; Fire burn, and caldron bubble
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12AX7
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There are volatile salts, of course; lead acetate smells of acetic acid due to decomposition to the basic acetate. Cupric chloride, when heated,
doesn't really smell, but because it vaporizes fairly easily (in the 300C range IIRC), the fumes can become airborne, where they stick to the sinuses
really badly. Not a pleasant salt when heated!
Tim
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Eddygp
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Ethyl acetate for the best.
Bromine for the worst one, although I have not smelled it.
there may be bugs in gfind
[ˌɛdidʒiˈpiː] IPA pronunciation for my Username |
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Mailinmypocket
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From my microbiology supplies:
Beef extract (smells just awful... looks awful... yuck)
Bacto-peptone (Has a smell reminiscent of cat piss)
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Endimion17
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| Quote: Originally posted by DJF90 | | I quite like the smell of NaBr and HBr; both smell kind of fruity to me. Absolutely fucking hate HCl (g or conc.) as it chokes me up and rusts the
shit out of anything ferrous in the vicinity. Even my old aluminium hotplate top showed signs of corrosion (as does any Al foil nearby). I try to
avoid it at ALL costs. |
But sodium bromide does not have a smell at all. It's not volatile, it's not being attacked by atmosphere not it decomposes by itself. It's a very
stable salt. The only thing you might smell are the impurities, whatever they are, but pure salt... no.
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Oscilllator
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| Quote: Originally posted by Endimion17 | | Quote: Originally posted by DJF90 | | I quite like the smell of NaBr and HBr; both smell kind of fruity to me. Absolutely fucking hate HCl (g or conc.) as it chokes me up and rusts the
shit out of anything ferrous in the vicinity. Even my old aluminium hotplate top showed signs of corrosion (as does any Al foil nearby). I try to
avoid it at ALL costs. |
But sodium bromide does not have a smell at all. It's not volatile, it's not being attacked by atmosphere not it decomposes by itself. It's a very
stable salt. The only thing you might smell are the impurities, whatever they are, but pure salt... no. |
Maybe his NaBr/KBr have the same impurities as my potassium nitrate? Idk how that would happen though.
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Random
International Hazard
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| Quote: Originally posted by Adas | | Quote: Originally posted by Jor | When are these sulfurated ketones formed? Good thing to know so I can avoid them at all cost. I really don't want to make such a thing by accident.
Yes by HCl/H2S/acetone, but any other reactions as well?
[Edited on 12-6-2009 by Jor] |
You can use P4S10, or maybe even Al2S3 (but I really doubt it).
I am quite curious how thioacetone smells. |
i would like to see how thioacetone smells and would make in it small quanitity but that story about whole town evacuation doesnt sound appealing
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