Admittedly my organic chemistry classes occurred 20+ years ago, but I
remember butyl (or methyl) mercaptan as being what gives the lovely odor to
one's liquid waste after eating asparagus and crotonaldehyde as the main
component of a skunk's stench. (One remains up on this sort of thing when
living with Karl.)

Stephanie

----- Original Message -----
From: "Dave Baker" <DBAKER5@KC.RR.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, October 31, 2001 6:46 PM
Subject: Re: Cold weather camping, heating, etc.

> Wonderful!  Thank you.  I have been puzzling over this for a year.  (I
never
> did understand partial pressures, moles, etc.   I do remember that PV=nRT,
> however.)
>
> Dave in KC
> 85 Westy
> http://members.fortunecity.com/davebaker1
>
> ----- Original Message -----
> From: Matthew Pollard <poll7356@UIDAHO.EDU>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Wednesday, October 31, 2001 2:20 PM
> Subject: Re: Cold weather camping, heating, etc.
>
>
> > yep. CO on top, CO2 on bottom.
> >
> > air is:
> > nitrogen: 78.08%  and weights 28.0134g/mol
> > oxygen: 20.9476% and weights 31.99 g/mol
> > Argon: 0.934% and weights 39.948 g/mol
> > (and the rest is less than .001% each, neon, co2, he, kr, xe, ch4, h2)
> > Density is 1.2250 at sea level and 25C
> >
> > Carbon-Monoxide weights 28.005 grams/mole and has a density of .301 at
sea
> > level at 25C
> >
> > So therefore, CO is "lighter" than air and will build from the top down
> > and not the bottom up, like CO2.  BUT BARELY. Look at those masses,
there
> > is not much difference.
> >
> > But the masses are really close so things like air currents are pretty
> > important here.  But not with CO2- that stuff is really heavy and you
can
> > "see" it hang out down low.
> >
> > Ok, back to my gasses (butyl mercaptan-- the same stuff that makes
skunks
> > smell great!)
> > -Matthew
> >
> > Matthew Pollard          "Racing with the wind and flirting with death
> > Dept. Of Chemistry        So have a cup of coffee and catch your breath"
> > University of Idaho
> > www.uidaho.edu/~poll7356
> >
>