Natural Science Forum / Chemistry / General Chemistry / October 2007

Soap Bubbles,Their Colours and the Forces Which Mould Them by C V
Boys,Romance of Science Series, 1912,original owners
inscription,otherwise VGC. 190 pages.
Great little edwardian science book on soap and all things soapy!

I notice that batteries have their own separate recycle
bins, they have to be separated due to the toxic
metal content.
What processing is done on them?

The following paper is extremely good but it is long. I've excerpted
parts of it to give its flavor and to encourage readers to read the
original.
http://www.ff.org/centers/csspp/pdf/20070330_kininmonth.pdf

The chlorides are cheaper.

The logic behind the oxidation number formalism for molecular
compounds, I thought, was to assign the more electronegative element
both electron pairs in a given bond. This works well for many
compounds, but with nitrogen triiodide, for example, shouldn't

Ellingham diagram is a plot of change in STANDARD free energy change
with temperature for various reactions like the formation of
oxide,sulphides etc.
  STANDARD FREE ENERGE CHANGE is the change in energy measured at

I'm trying to think of methods that may detect ~ 1/2 picoamp DC
without applying any appreciable *bias* current.
I have a passive analog amp meter that with the aid of a microscope
can accurately detect down to 100 pA. Close, but no cigar.

Can dilute (~0.1M) fluoride at room temperature react with
acetic acid in aqueous solution to give fluoroacetate?  pH around
4-5 (acetic acid/acetate buffer).  Would lanthanides make any
difference?  (Trying to grow lanthanide fluoride crystals, but not

I'm not a regular member of this group, but I'm hoping that someone here
can help me because I know practically nothing at all about chemistry.
My hobby is homebrewing, and recently there have been some discussions
about the possibility of using a tiny amount of olive oil in a

I've come across the word "diocene" in the context of chemistry, and
it sounds like it might be a legitimate term (like benzene).
Indeed, doing a google search on "diocene chemistry" gave me a few
hits... including "Milfred concentrated emulsifiable diocene

I know HCl gas is very volatile but it dissolves and dissociates in
water to make hydrochloric acid, so what should happen if I have some
dilute hydrochloric acid entrained in an organic solvent and distill
it.?  Will the water come over the top first and concentrate up the

It seems that either this conversation has been dropped on another
thread (see 'Gravitational Shadowing' or 'Difference between physics
and mathematics') or I am onto something.
Is the theory of H2O angle in conflict with the theoretical 2p orbital

Work at Home - Get Paid Every Week
Earn a guaranteed income from home starting today.
International company requires home based typists to do simple typing
tasks for their clients.

As more transuranic elements are synthesized, the periodic table of elements
is getting bigger. The latest periodic table I have shows that Mt (Z=109),
meitnerium, as the last confirmed element although there may be more. That
leaves analogs of Pt, Au, and Hg to complete that ...

According to Wikipedia:
http://en.wikipedia.org/wiki/Irish_coffee
"Although this beverage may be served without sugar,
doing so would prevent the cream from floating on top