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Lightning Photography
Here is a time exposure I took about 4 years ago, in the Buffalo, NY area:
[img=520X678]http://ww ... |
1-9-2009 at 14:01
by: hodges |
Preventing Mold Growth in Organic Solutions
I'm sure there are impurities present in the solution. Probably a trace is all that is needed (in a ... |
25-8-2009 at 13:49
by: hodges |
Chromium Recovery Question
The reactions are on a small scale. I was mainly interested just in getting a Cr(3) salt isolated t ... |
25-8-2009 at 13:42
by: hodges |
Preventing Mold Growth in Organic Solutions
I had about a gram of picric acid that I didn't need so decided to convert it to ammonium picrate. ... |
24-8-2009 at 13:43
by: hodges |
Chromium Recovery Question
Is it possible to recover the chromium left over after using a dichromate salt in an aqueous oxidati ... |
24-8-2009 at 13:28
by: hodges |
Another Way
I was watching chemistry videos on YouTube and ran across what appears to be an interesting new idea ... |
18-8-2009 at 17:22
by: hodges |
Any Danger of Sulfates when forming Esters with H2SO4?
Standard way to form esters involves adding concentrated H2SO4 to eliminate the water formed by the ... |
17-8-2009 at 13:52
by: hodges |
Iodine Pentoxide - Guess its not a joke after all
When I first saw this on E-Bay
25g Iodine Pentoxide (Crystal) High Purity
http://cgi.ebay.com/ws/ ... |
16-8-2009 at 17:07
by: hodges |
DMSO shelf life
I have some DMSO that is around 4 years old. It was stored in a dark location inside, so not much t ... |
16-8-2009 at 16:51
by: hodges |
Aspartame Isolation
I tried a couple of experiments this evening.
Isolating apartame was not successful. I added a ... |
13-8-2009 at 18:00
by: hodges |
Aspartame Isolation
According to Wikipedia, aspartame is 180 times sweeter than sugar. I have here a brand of artificia ... |
10-8-2009 at 13:37
by: hodges |
Experimenting with mercury
Things sure have changed a lot regarding the perception of mercury safety in 30 years. In 1978, I w ... |
10-8-2009 at 13:20
by: hodges |
Stored 3 Years
Its been about 3 years since I've messed around much with most chemicals. I was taking an inventory ... |
8-8-2009 at 16:04
by: hodges |
Halogen Colors
[rquote=159496&tid=12641&author=JohnWW]Has anyone ever seen a macroscopic quantity of astati ... |
7-8-2009 at 14:17
by: hodges |
Digital Pocket Scales Don't Last?
[rquote=159525&tid=12643&author=Magpie]I offer a low tech solution: 
[/rquote] ... |
7-8-2009 at 14:10
by: hodges |
Digital Pocket Scales Don't Last?
I'm on my 3rd one.
I bought my first in 2003. Used it a couple of years. Then one day I volun ... |
6-8-2009 at 13:37
by: hodges |
When does an electron have kinetic energy as opposed to potential energy?
When an electron is part of an atom, it is not really "moving" in the classical sense. The old "sol ... |
28-6-2009 at 13:45
by: hodges |
Electrophoresis
I performed electrophoresis using regular agar and a 30-volt power supply with nichrome wires at the ... |
23-12-2007 at 10:38
by: hodges |
Non-Trivial DNA Experimentation at Home?
Thanks for the replies. I think I will work on some electrophoresis experiments over the holidays ( ... |
12-12-2007 at 17:43
by: hodges |
Non-Trivial DNA Experimentation at Home?
I read its pretty easy to extract DNA (see, for example, http://learn.genetics.utah.edu/units/activi ... |
10-12-2007 at 15:35
by: hodges |
evaporation
[quote][i]Originally posted by chemkid[/i]
"In a low dish this works awesome. It is my prefered eva ... |
25-9-2007 at 15:31
by: hodges |
homemade natural indicator
Even food coloring will change color at extreme enough pH.
Hodges |
25-9-2007 at 15:25
by: hodges |
More than one OH on a Carbon?
I know that alcohols with multiple OH- groups exist and are in fact common, but I have never run acr ... |
24-9-2007 at 15:41
by: hodges |
Electrolysis of Water
For quick impromptu calculations, you can remember that a mole of electrons is about 27 ampere-hours ... |
24-9-2007 at 15:35
by: hodges |
Alexander Shulgin Books
Edited -
I was posting a reply to the question about hydrogen production - not sure why it ended up ... |
24-9-2007 at 15:33
by: hodges |
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