Natural Science Forum / Chemistry / General Chemistry / April 2008

Does anyone know of a good discussion (lab manual?
lit ref?) of when to use Na2SO3 (sodium sulfite), NaHSO3
(sodium bisulfite), Na2S2O3 (sodium thiosulfate), or
similar (dithionite, metasulfite) sulfur reagents during

A human with no disease or medical condition is put on a stinky stinky
kakaa diet of:
A. Stale fat-free hot melted cheddar cheese
B. Lentils -- "dhal"

I am new to this group.  I have no chemistry background.  I am looking
for a non-partisan/non-commercial opinion about the mosquito
attractant Octenol.  I would like to buy the mosquito magnet, however
I have 2 young children and I am concerned about any dangers to the

It's become a common meme in politics; but when does it happen in reality?
Certain quantities of gas can combine to make 2+2=5 a reality; what are
the other circumstances, if any?

I like to put together a distillation tower to refine ethanol from a
fermenter. I am looking in its construction material and the tower
type.
WIll Carbon steel do or will need to go to SS steal?  Also,

Writing a script and wanted to know if readable fingerprints could be
transferred from a gun that's been wrapped in paper (just standard paper).
That is, the prints are on the gun, which is then wrapped in paper.  If the
gun were then lost, would any prints have transferred to the ...

What you are about to read might sound unusual but it could be very
enlightened.
New Muslim Brother From San Francisco
http://www.youtube.com/watch?v=miw1nt-vNAU

People who like to worry badly need more things to worry about. By
definition biodiesel is bio-degradable. To a lesser extent so is
petroleum. Microbial evolution and symbiosis can exceed our rate of
adaption. Hence we die of disease. What are you going to do when the

We are a small company that makes various formed products including an
inorganic oxide-based extrudate. That process works fine. But we are
interested in making a new extrudate based on a different mix of
oxides. We know this stuff will perform well because a competitor is

I know H2O2 dissociates into two OH. radicals. But how does it go on
from here? Presumably it is the same answer as what happens at the
anode in the electrolysis of pure water. Is it
OH. +OH. <-> HOH + O..

Hello, I'm Francesca, I need desperatly help!!!!
I'm doing a research about the resin, not the synthetic one, but that of the
trees!! It is very important, if someone knows something, let me know.
thanks, Francy

Follow up on thread here.  Friend that worked at refinery said aviation
gas is very high octane.  To use lower octane gas, even if free of
alcohol would cause problems.  Not a good idea.
As for you boaters, you can probably use gas made for cars.

If you're anything like me, the chances are that your
mind works against you when it comes to seduction. The
second you arrive at a bar or party, despite the promise
you made to yourself that you'd be the charming life and

I am working on seperation chemsitry of  platinum noble metals, namely
Pd, Rh, Ru. I learn that these metals are of wide interest in fuel
cells, etc due to their hydrogen stroage capacity. I have some queries
regarding this

Does any one has experience in distillation of nitromethane? I am
planning to do u/vacuum distillation of nitromethane(NM). I have a
stream containing traces of HCl, water and around 97-98% NM. I am
planning to adjust pH with help of sodium carbonate solution and then