Natural Science Forum / Chemistry / General Chemistry / December 2004

I read United States Patent  5,349,074 describing a process to purify
different biliary acids from hog biles, and encountered the following
sentence:
"The biliary acids solution is treated with an ammonium zincate aqueous

my mom has always thrown down the sink drain the coffee grinds after
making the coffee, beliving that it helps to mantain the drain free of
rust and germs, but a friend doesn't belive this. in my opinion, it is
true because the coffee grinds have a certain level of antioxidants.

SHALOM
I ask you to read this letter till the end! Don't treat to my words
with indifferens. On Your understanding it will depend my fate and the
fate of my child!

I think this wasn't properly answered before.
Home garnders often loose their hand tools in over-grown grass,
weeds,
or bushes.  Using a simple RF transmitter/receiver and antenna,

There is no physics room............so i am adding my topic
here........can ne1 post the general and special theory of relativity
(actual as written by einstein).......it would be desirable if you
attach a notepad or word or any such file..........thank you

I want to get rid of some spray plastic bottles filled with household
Ammonia.  What's the best way to go about it?   Is there any law in US
that I should be aware of?

Here's a question/mystery regarding to gasoline tanks and water
(Chemistry related!).
Scenario: A tank initially has 3000 gal of gasoline. On first
inspection, there was no detectable amount of water in the tank. About

I am trying to remove artillery (shotgun) fungus black spots from a light
colored vinyl siding.  One product that has been recommended is Jomax which
is a 0.25% solution of O phenylphenol sodium salt.  The directions are to
use it in a solution 16 parts water, 3 parts bleach and ...

SNUMBER6 wrote:

it is extremely >dependent on pH ... In strong base ... it will even
oxidize Cr3+ to CrO4- ... in acid >solutions ... quite often it even

I used to believe that there were no such things as stupid questions. Recent
posts on this newsgroup are beginning to change my mind. In many cases I do
not even comment on the stupidity seen. And I do not mean just plain
ignorance.

Some garlic chemistry after a merry Christmas. I earlier posted that
garlic paste turns green when kept in a refrigerator aftera week or so
and wanted to know its cause.  Steve Turner pointed out that it may due
to bacterial action or a fungus. A further web-search showed a

Does anyone remember the immersion heater that Aldrich used to
sell as "Red Rod"?  I've never seen one in my hands, but I think it's
a ceramic covered resistance heater.  There were convenient shapes
and sizes, like 1-2 cm diameter rods with built in conductors, so you

What chemical reactions happen when you mix ammonia and bleach and why is it
dangerous?

Hi~..everybody.....It is lucky for me to find this type of academic
forum. I am just a secondary 3 student . And I come from Hong Kong (I
says CANTONESE in my daily life).I have some problems about chemistry.
And I hope that you can solve my questions. thank a lot. Please forget

has anyone ever proven that a substances freezing point is always
lower than it's boiling point?
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