Natural Science Forum / Chemistry / General Chemistry / September 2005

Can cyclohexane and toluene be separated in distillation if the
external pressure is 350 mm Hg instead of 760 mm Hg?
Thanks in advance.

People keep mentioning CRC, I found out that it's a publisher using
google, but which specific book applies BEST to chemistry in general?
ISBN please

I'm attemping to plate using platinum, and I'm currently on the first
step, bringing platinum metal into solution. My idea was to use aqua
regia, with some NaCN to complex with the platinum and help bring it
into solution, however upon adding my NaCN to the aqua regia, two

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Can somebody provide me an information about development and practical use
of above electrochemical effects?
Very thanks,
Pavel

Anyone know a practical way of converting aniline to phenol?
I'm thinking treating it with N oxides, but cant figure out the
reaction scheme. What is it? What interemediates and by-products?

Hello Boys...
I'm searching informations on how to put two metals togheter in
solution,without generating any precipitation.I know there are smart
guys here..anyone has some suggestions?Thank you.

CE magazine's cost index for 2002-2005 anyone please (annual average
values)?
TIA,
Nikolas

    Any one know of a good place to buy small off-the-shelf
plastic lenses?

Hi sc!
How good would it work to make O2 and N2 (with trace noble gases,
...) from air like this:
(1) O2(air) + 2 MnO2 + 4 KOH (aqueous) -->

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I'm playing around with salts of the nitronate ion. All experiments I
do point in the direction of a dark brown/red ion, but from a chemistry
expert, I understood that nitronate ion is colorless. The expert,
however, does not have personal experience with nitronate salts.

While my wife was out last night I heated up some "food" in the
microwave.  As usual the pyrex bowl was a little hotter than the food
after a couple of minutes.
I got to wondering- what type glass is used in those very expensive

Hi, Everyone!
My textbook says that if two volumes of identical gas are mixed, there
is no change in entropy. Suppose I have vessel one (V1) and vessel 2
(V2). V1 and V2 are separated by a removable separator. V1 has 9

does anybody know of a web site where I could fine prices for inorganic
chemical products lab-grade? Sites like Merck only give the ordering
references.
Many Thanks,