Natural Science Forum / Chemistry / General Chemistry / July 2008

I would like to optimize a Mercury Cold-Vapors analytical method which
isn't efficient to my opinion because we get broad and flat peaks.
Anyone would know what could cause theses very broad peaks whatever the
concentration I'm using for calibration (I usually use 0.1, 1, 5 and 10

I'm looking to buy a used laboratory chiller (refrigerated
recirculator).  I'm only interested in the following models:
  VWR:  1175  1177  1179
  Polyscience:  6505  6506  6705  6706  6105  6106

A team of scientists led by researchers from Princeton University has
discovered a new way that electrons behave in materials. The discovery
could lead to new kinds of electronic devices.
http://thefreereporter.net/newspr/3020201.html

NASA'S New Launch Vehicle - Le Turd.
I read it on NasaSpaceFlight.com.

Dear Friends,
Myself Pradeep Belwal, a resident Indian, working with an engineering
organisation called M/s. Adsorbtech Engineers Pvt. Ltd. and who is
engaged in manufacturing Gas generation Plants (A set of pressure

OK, I cannot seem to find online the reaction information with
Aluminum and molten Sodium Hydroxide. That is, melt NaOH (which melts
around 318C) and add small amounts of Aluminum to it - what is the
reaction?

Does anyone knows of a process where noble metals like Ru Rh or Pd are
leached into nitric acid, either in metallurgical process or recycling
methods? All the present methods employ either aqua regia or
hydrochloric acid.

This text I posted on the boatdesign.com forum under the title "any chemists
among you":
When I open the engine bay of my boat, I smell something acid.
The boat is not in use because I am working (again) on various electronic

I need to create relative humidity about 50% to calibrate a hygrometer.  
You make a slush of the chemical with distilled water, put it in a sealed
container, and wait.  
Potassium carbonate is one of the salts listed as good for this.  It makes

Today I solved one of my old problems. I mix pancake batter to last
for a week, but without using a plastic
throwaway container. Throwaway because the dried batter on the walls
of the container are so miserable

I am cross-posting this to sci.research.careers and you
should add s.r.c to the groups you track.
Bob wrote:

http://www.thriftyfun.com/tf264233.tip.html
http://counties.cce.cornell.edu/yates/8030.htm

Regular Clorox bleach can be used to kill microorganisms, but it will
put white stains on your colored clothing.
I want to attempt to sterilize my colored clothing as I wash it (I use
a public landromat.)

Poured vinegar into our Krups coffee maker to clean and a clear gel
formed on the top of the strainer with a puff of steam. The coffee maker
was just turned off when the vinegar was poured in and it was of the
white distilled type (Heinz) and not diluted at all. Any idea what ...

I'm in UK, so hoping I can buy in UK.
I see products such as Tensol 12; Tensol 70; Extru-Fix; Evo Bostik 7452 and
other quality adhesives to bond cast or extruded acrylic, but I seem to be
having a hard time finding anything that comes in a 50 or 100 ml bottle or