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chlorogenic acid
see:
http://pubs.acs.org/doi/abs/10.1021/jf60114a017
I'd get full text, but I have moved and nee ... |
1-8-2012 at 16:25
by: Ozone |
Valeric Acid Preparation Ideas
You could also extract it from valerian: http://en.wikipedia.org/wiki/Valerian_(herb)
O3 |
23-7-2012 at 16:19
by: Ozone |
Ethyl Acetate Synthesis
Look up Fischer esterification.
O3 |
22-7-2012 at 18:08
by: Ozone |
Looking for TMS and Chloroform-D
That...That is still one of the most brilliant ideas I have ever seen. Regardless of funding, the Al ... |
10-5-2012 at 19:49
by: Ozone |
Video of spectra of arc melting
Excellent real-world example of AES!
O3 |
23-4-2012 at 15:51
by: Ozone |
Hope this was nobody here....
Total, unadulterated, weapons-grade Horse-Shit.
O3 |
5-4-2012 at 18:12
by: Ozone |
Extraction of caffeine with diethyl ether
DCM is the solvent of choice. Extract the free-base. Also, don't add salt, try washing with brine.
... |
25-3-2012 at 09:47
by: Ozone |
Construction of a blast box
"You are building a bomb, not a safety device"
Enough said.
A box with permeable fabric (e.g. ... |
25-3-2012 at 08:44
by: Ozone |
Ion Chamber
I say "meh" over such a trifling source, but--there is a general license written that extends the us ... |
25-3-2012 at 08:35
by: Ozone |
PTFE stirring bar dissolved?
Calcium hydroxide/phosphate ppt when the liquid becomes hot? The former definitely demonstrates inve ... |
19-3-2012 at 14:47
by: Ozone |
Radiation Exposure
Ok. 500 what? If its cpm, no big deal. If its R/hr, not so good (which is more like "from across the ... |
12-3-2012 at 17:11
by: Ozone |
Monosacharide + NaOH yields red color???
That is because the acid caused acid catalyzed inversion (hydrolysis of the glycosidic bond) of the ... |
10-3-2012 at 19:27
by: Ozone |
Monosacharide + NaOH yields red color???
I should also add that glucose is quite capable of producing HMF... The rate (which is significantly ... |
9-3-2012 at 23:31
by: Ozone |
Monosacharide + NaOH yields red color???
It is not HMF! That results from a sequence of dehydrations (E1) which are acid catalyzed.
When ... |
9-3-2012 at 13:57
by: Ozone |
Reaction Mechanism Please Help
In any case, it would appear to be limited by the rate-determining-step.
O3 |
28-2-2012 at 20:25
by: Ozone |
Citric acid "burnt" at 70ºC?
I looks like the sulfuric acid concentrated upon drying and dehydrated your sample (leaving mostly c ... |
8-2-2012 at 17:39
by: Ozone |
Separation of Rebiana and Erythritol
It's rebaudioside-A (I called it "reb-A" or "Reba"), to differentiate it from the other steviol glyc ... |
8-1-2012 at 07:36
by: Ozone |
Why does strontium block x-rays?
Plain glass browns very nicely in x or y-ray flux. As the electrons are knocked out (of silica tetra ... |
7-1-2012 at 07:32
by: Ozone |
Why does strontium block x-rays?
Cool!
Ah, I see. It's used to increase electron density in non-leaded glass formulations (I was ... |
6-1-2012 at 19:14
by: Ozone |
Why does strontium block x-rays?
I thought the glass was leaded or "bariated" to block whatever X-rays you might have. In any case, b ... |
6-1-2012 at 17:08
by: Ozone |
Extracting polysaccharide K from mushrooms.
This is not trivial. Given unlimited time and student-power, I'd:
0. Harvest (via culture) a larg ... |
4-1-2012 at 18:54
by: Ozone |
Zero tolerance for meth cooks kewls and other troublemakers?
Zero-tolerance policies are crutches that support (the lazy and/or gutless) those who would like to ... |
4-1-2012 at 18:27
by: Ozone |
2 chemistry problems
We see inverse solubility of calcium salts (especially Ca(OH)2 in the sugar industry) every day, a b ... |
3-1-2012 at 18:21
by: Ozone |
Dihydroxyacetone peroxide
DHA is the simplest keto-sugar, analogous to glyceraldehyde. It is a very fast Maillard browning rea ... |
17-12-2011 at 06:56
by: Ozone |
Parr bomb calorimeter
OK, the wire is Parr # 45C10. It has a value of 1400 cal/g or 2.3 cal/cm (I use a full, 23 cm piece, ... |
1-12-2011 at 13:17
by: Ozone |
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