| Pages:
1
2 |
Pyro
International Hazard
Posts: 1305
Registered: 6-4-2012
Location: Gent, Belgium
Member Is Offline
Mood: No Mood
|
|
Does D not replace H over time?
I remember reading somewhere that mixing C6H6 with D2O will eventually convert to H2O and C6D6
Edit: Whoops! Now the D is back in the formula 
[Edited on 24-12-2015 by Pyro]
all above information is intellectual property of Pyro. |
|
|
alexchim
Harmless
Posts: 8
Registered: 23-12-2015
Location: France
Member Is Offline
Mood: No Mood
|
|
I never observed MS signal for benzene. Maybe the ionisation unit of my lab is not powerful enough...
|
|
|
alexchim
Harmless
Posts: 8
Registered: 23-12-2015
Location: France
Member Is Offline
Mood: No Mood
|
|
Quote: Originally posted by Pyro  | Does D not replace H over time?
I remember reading somewhere that mixing C6H6 with D2O will eventually convert to H2O and C6H6 |
Yes, it is how CDCl3 is made, by mixing CHCl3 with D2O in several cascade reactors...
|
|
|
Heavy Walter
Hazard to Others
Posts: 127
Registered: 17-12-2015
Location: Argentina
Member Is Offline
Mood: No Mood
|
|
Hi Pyro
You are right in principle; but some of those displacements must to be forced.
By the way, in your formula D vanished...
In order to prepare deuterated PAH I will use a technique requiring acidity and temperature (adding DCl to a normal PAH and cooking it at 300 ° C).
|
|
|
Heavy Walter
Hazard to Others
Posts: 127
Registered: 17-12-2015
Location: Argentina
Member Is Offline
Mood: No Mood
|
|
Hi fluorescence
May be to add to your detailed list of deuterium labelings, see this procedure for chloroform and acetone:
Preparation of Deuterated Solvents for Nuclear Magnetic Resonance Spectrometry
P. J. Paulsen and W. D. Cooke, Baker laboratory, Cornell University, Ithaca, N. Y.
ANALYTICAL CHEMISTRY, 1963, 35, 1560.
|
|
|
| Pages:
1
2 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
