Natural Science Forum / Chemistry / General Chemistry / June 2008

What are the best commercial adhesives for gluing polyester labels to
plastic?    My application requires tolerance of temperature between -20 F
and +150 F.
This is a low volume application so I would appreciate commercial brand

I am looking for a material that will get heavier when heated BUT cool
back down to regular weight when not exposed to the heat.  Is there
such a thing.  I am a non-chemistry person, as you can tell.
Thanks in advance.

The main value of hydrogen  is at its endpoint of use in a fuel cell. The
considerable difficulties of manufacture, storage, transport and safety
probably rule out its practical use in bulk,  except as a political
boondoggle.

i know how to produce pc-viruses... show me!
just pick one none executable file, add .exe or .com extension to it,
run it and expect A major attack over the universal wide neuro web.
donot worry -- by the time kaspersky and nod32 comeup with definition

Hi all, I'm looking for decent, technically detailed, chemistry
specific
science fiction novels to read, any good recommendations would
be really appreciated.

I have to use this autoclave. There are four keys. I know that 2 are
for 134 degrees and 2 are for 121 degrees. I`m interested in 121
degrees: which is the difference between the 2 keys of 121 degrees?
How long a cycle of 121 degrees last? I shoul do 2 autoclaving cycles

There is a lot of BS around so called "Black Sands" that some people
claim contain huge amounts of gold, platinum, palladium, etc.
But they also claim you can't get it out unless you use some
"mystery", "secret", "proprietary" process to unlock the stuff.

Principles of Direct Current Machines (1923)
By Alexander Langsdorf
Additional information and photos of this book are available on this
page:

I know nothing about chemistry. This question just occurred to me and
I thought you dudes might have the answer.
I'm just wondering if oil (as in the stuff that is heading for $200 a
barrel) can be manufactured in a lab/factory? It's just hydrogen,

Some interesting stuff I found on the Internet about light bulb tech and
chemistry.
http://community-2.webtv.net/insula/LightBulbTech/
insula

How difficult is it to test a home water supply (city water) for
contaminants?  There have been some issues with our cities' water, and
I am curious as to what exactly is in it.
I've heard there are test kits available, but I don't know how

Hi folks. Our very small chem department at our very small university
just bought a used Corning MP-8S water still. It's in good shape but
we need the manual. We've done a web search and come up with nothing
useful. Apparently Corning sold the product line and the new owners

Hi and sorry again,
inorganic chemistry is now "past" (I passed my exam) while I'll have
to repeat in July the organic chemistry part.
One of the questions I found in the exam was about what happens to

Printing dollar is a copyright violation
----------------------------------------------------
I recently heard that the USA government or the unfederal reserve is
printing dollars. Is this a copyright violation ?