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Quick determination of ammonia or ammonium?
For the preparation of Nessler's reagent: |
16-9-2008 at 13:13
by: matei |
Quick determination of ammonia or ammonium?
A very sensitive reagent for ammonia is Nessler's reagent -potassium tetraiodomercurate(II). It's or ... |
16-9-2008 at 12:58
by: matei |
What does APP mean?
"APP" means application.
For a list of the abreviations they use see: http://ras.material.tohoku.ac ... |
9-9-2008 at 09:49
by: matei |
Very old Ethyl Ether
From "Inorganic Syntheses", Vol. XII:
[b]Purification of Tetrahydrofuran[/b]
It has been repor ... |
7-9-2008 at 12:25
by: matei |
Regarding the use of home glassware as lab glassware
[quote][i]Originally posted by 12AX7[/i]
Hmmm, tempered soda-lime, that means it will literally exp ... |
16-8-2008 at 12:34
by: matei |
Basic organic compunds from Petrol
At 80 degrees you will collect a mixture of benzene and aliphatic hydrocarbons. Aromatic hydrocarbon ... |
12-8-2008 at 13:02
by: matei |
American/British glassware compatible?
jeffB is right. We have a rotavap that has a 24/40 joint and we are using it with 24/29 glassware. |
28-7-2008 at 06:44
by: matei |
Old aniline HCl?
You should try to distill some of the liquid. My guess is it's aniline. Aromatic amines aren't very ... |
19-7-2008 at 09:07
by: matei |
Selective Coumarin modification or destruction
chemoleo,
On Gigapedia you can find a book called "Fluorescent and Luminescent Probes for Biologic ... |
19-7-2008 at 07:55
by: matei |
Incompatibilities in organometallics?
A very useful book would also be "Organometallics in Synthesis - A Manual" edited by Manfred Schloss ... |
28-2-2008 at 13:49
by: matei |
Tetrakis(dimethylamino)ethylene
Tetrakisdimethylamino-ethylene, a Strong Electron Donor
Angewandte Chemie International Edition in ... |
2-2-2008 at 14:35
by: matei |
Sand instead of silica in chromatography?
It won't work because sand grains are not porous. Adsorbents used in chromatography have a very high ... |
30-6-2007 at 11:17
by: matei |
etching databases
Check gigapedia. There is a book called "ASM Handbook, Volume 9: Metallography And Microstructures". ... |
11-5-2007 at 07:33
by: matei |
name that piece of glass!
#3,4 and 5 are pictures of a spinning band column with a dividing head attached (this is used for co ... |
9-5-2007 at 06:48
by: matei |
Nucleic acid synthesis
Sorry, the image seems to be quite big (900 kb or so). |
4-5-2007 at 10:01
by: matei |
Nucleic acid synthesis
These are the classic syntheses of DNA bases: |
4-5-2007 at 09:42
by: matei |
AS Organics - Microscale chem
You can find lots of experiments developed especially for microscale in Journal of Chemical Educatio ... |
25-4-2007 at 10:00
by: matei |
Azo Coupling
1-nitronaphthalene won't react with diazotized aniline. Diazonium salts are very weak electrophiles ... |
25-4-2007 at 07:34
by: matei |
Solid phase synthesis
The trick is to add the dryed beads to the NMR tube (aprox. 1 cm or so) and than add the solvent in ... |
14-4-2007 at 05:26
by: matei |
Solid phase synthesis
@frogfot,
The parameters for recording 13C gel-phase spectra are in these articles:
1) J. Org. C ... |
8-4-2007 at 04:24
by: matei |
Solid phase synthesis
Gel-phase NMR is simply recording the spectra of resin beads swollen in deuterated solvent. The bad ... |
7-4-2007 at 16:52
by: matei |
Solid phase synthesis
I've done some solid phase synth recently. The simplest way for reaction monitoring is to use IR spe ... |
2-4-2007 at 09:20
by: matei |
Uses for acrylamide
Acrilamide is not just toxic, it's carcinogenic. It can be polymerized and copolimerized with N,N'-m ... |
1-4-2007 at 03:09
by: matei |
Iron pentacarbonyl synthesis...
Check Brauer - "Inorganic Synthesis". |
21-3-2007 at 10:06
by: matei |
Retention factors of some compounds
SecretSquirrel,
Usually these retention factors are not reproducible so they are rarely reported ... |
21-3-2007 at 10:05
by: matei |
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