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Repairing Infrared Spectrophotometers
Interesting.
According to my data, almost all solid-state modern detectors already have a built- ... |
24-6-2009 at 11:38
by: Biginelli |
Frozen joints--should I be hopeless?
If you remove chloral hydrate, it will be no Bredemann's solution
Soaking in H2SO4 and naphtha he ... |
24-6-2009 at 07:55
by: Biginelli |
Repairing Infrared Spectrophotometers
I have a question then to anyone who has at least some experience with Hitachi infrared line. My spe ... |
24-6-2009 at 04:10
by: Biginelli |
Frozen joints--should I be hopeless?
I recommend Bredemann's solution:
10 parts of chloral hydrate
5 parts of glycerol
5 parts of wa ... |
24-6-2009 at 03:46
by: Biginelli |
It is not book but programme.
ACD 10.0 - is much better - its license is endless. |
23-6-2009 at 05:10
by: Biginelli |
It is not book but programme.
Einz:
[code]http://www.chem4all.vn/forums/showthread.php?t=2458[/code]
Zwei:
[code]http:/ ... |
21-6-2009 at 04:37
by: Biginelli |
oxidation alcohol to aldehyde with MnO2
So why bother with this in situ condition? |
17-8-2007 at 12:12
by: Biginelli |
oxidation alcohol to aldehyde with MnO2
Active gamma-form of MnO2 can be obtained by the following reaction:
MnCl2 + KMnO4 => MnO2 + C ... |
17-8-2007 at 12:11
by: Biginelli |
37% formaldehyde
one of the best and most precise ways to analyze % of formaldehyde solution is DNPH (dinitrophenylhy ... |
9-4-2007 at 07:52
by: Biginelli |
Dring HNO3 with MgSO4, possible?
First method is used in nitric acid industrial production, though distillation is not vacuum |
23-2-2007 at 12:15
by: Biginelli |
Dring HNO3 with MgSO4, possible?
Another method is vacuum distillation over P4O10. |
23-2-2007 at 12:11
by: Biginelli |
Dring HNO3 with MgSO4, possible?
There's a method: HNO3 is mixed with H2SO4 (BOTH LIQUIDS MUST BE COOLED) and distilled in vacuum. bp ... |
23-2-2007 at 12:10
by: Biginelli |
Pye Unicam SP1000
I guess, replacement parts are impossible to obtain today... |
17-2-2007 at 12:44
by: Biginelli |
Pye Unicam SP1000
Many thanks for the info!
So, what was it all about : the evice have instantly lost sensitivity, a ... |
17-2-2007 at 12:39
by: Biginelli |
Pye Unicam SP1000
Thanks for information! Does it have a vacuumized cell?
And what's a power supply for, I still do ... |
6-2-2007 at 11:51
by: Biginelli |
What effect does Chloroformhave on rubber
Swelling at first. Extraction of dye into chloroform is the second. |
19-1-2007 at 12:50
by: Biginelli |
Pentaerythritol from paint
Chromatography's the only effective way I guess. But costly. |
12-1-2007 at 11:33
by: Biginelli |
Dihydrocodeine O-demethylation?
SN2 in such polar conditions? |
1-1-2007 at 04:36
by: Biginelli |
Pye Unicam SP1000
Is anyone familiar with this type of IR spectrophotometer?
What type of IR receiver does it use?
... |
29-12-2006 at 11:47
by: Biginelli |
Distillation set questions
Hilski,
*What types of things CANNOT be distilled using rubber stoppers with holes instead of gro ... |
29-12-2006 at 11:45
by: Biginelli |
Ketone distillation at atmospheric pressure
Quite a risky operation IMHO...
I'd use a vacuum distyllation without any question. Basing on th ... |
29-12-2006 at 11:38
by: Biginelli |
make carbon electrodes?
Or, perhaps, batteries? Some of D-type have graphite rods inside... |
9-12-2006 at 04:18
by: Biginelli |
make carbon electrodes?
Pencils? |
9-12-2006 at 04:17
by: Biginelli |
quenched reaction&workup
perhaps adding a VERY DRY solvent in which the esired compound is surely unsolable can help? |
1-12-2006 at 12:31
by: Biginelli |
3,4,5-trimethoxynitrostyrene reduction fun
What about NaBH4 in CF3COOH for phase 1? |
26-11-2006 at 13:48
by: Biginelli |
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