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Author: Subject: A chemical with a stifiling odour
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[*] posted on 25-12-2010 at 10:12
A chemical with a stifiling odour


Baruer p.653 describes tricarbon disufide C3S2 [carbon subsulfide] as a red-brown liquid of stifiling odor.

2. Being of such a character or nature as to engender a feeling of
stultification, repression, or suffocation
http://www.thefreedictionary.com/stifling.

Can anyone here confirm this?

[A] most penetrating odor; poisonous when inhaled.
http://tinyurl.com/26kc4zp

Explodes if rapidly heated to 100-120o. [The polymer?]
http://tinyurl.com/3adz5cq

..very offensive odor
http://tinyurl.com/2vxu9gv

A New Sulphide of Carbon
A. E. TUTTON.
Nature January 18, 1894
http://tinyurl.com/2e8dwb7

an extraordinarily strong tear-exciting odour

The liquid sulphide combines readily with six atoms of bromine,
with evolution of heat. The substance is readily isolated when
bromine is dropped into a solution of C3S2 in chloroform, as it is
insoluble in that solvent. Strangely enough this compound,
C3S2Br6 [?] is endowed with a pleasant aromatic odour, two
substances of frightful odours thus uniting to form an agreeably
odoriferous compound, a striking example of the effect of chemical
combination.

Watts Dictionary
http://tinyurl.com/2cw4tlj

Tricarbon disulphide C3S2. B. von Lengyel (B. 26, 2960 [1893])
obtained this compound by keeping the vapours of CS2 in an
electrio arc between C poles for some hours, filtering off the black
substance formed, allowing the red filtrate to stand over Cu for 6
to 8 days, and evaporating in a current of dry air. C3S2 is a
deep-red liquid, S.G. 1-27389; the vapour, even in minute
quantities, causes violent catarrh
; can be distilled, with partial
change to a black solid, at 60°-70° and reduced pressure ;
insoluble water, but dissolved by EtOH, Et20, CS2, CHC13, or
C,Ha. A cone, solution in CS2 deposits a black solid; the same
solid is formed by gently heating the liquid, if heating to
100°-120° is rapid the change is explosive.
The black solid is
probably a polymeride. A solution of CjS2 in CS2 reacts with Br to
form CsS2Brs. (For other reactions, v. abstract in C. J. 60 [11], 91
[1894].)


djh
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The cat got (its self) a mouse for Christmas judging by the
3-pieces laying on the bedroom floor this AM. The mouse ....
martyrdom, or perhaps it was paying for collective murine
sins. Releigons have been stated based on less.

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[*] posted on 25-12-2010 at 11:12


This is one of those molecules that only a spectroscopist could love!
Back in the days when I did such things we made tiny amounts of odd things, some of which lived only for fractions of a second.
It can also be made by pyrolysis and I would guess that most spectroscopists stream carbon disulphide vapour through a hot tube and into the photoelectron, microwave, etc spectrometer. They then 'fish out' the lines of interest.
It does not have a very extensive chemistry, it seems to like polymerising, sometimes explosively, another reason not to make it in large amounts.
It undoubtedly pongs, but stifling? Odour can be dependent on concentration, for example quite a few people find very weak chlorine, ozone or acetic acid pleasant but they are undoubtedly irritating in higher concentration, and is to some extent subjective.
It was investigated as a war gas an one time but dropped because of its instability.
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