Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
iodobenzene
Help anyone.........In the conversion of aniline to iodobenzene can I substitute sodium nitrate for the sodium nitrite I do not have. If not can I
readily convert sodium nitrate to the nitrite?
|
|
Phel
Hazard to Self
Posts: 72
Registered: 20-11-2004
Location: Scandium
Member Is Offline
Mood: viscous creep
|
|
You'll want the nitrosonium ion (<sup>+</sup>N=O)in your diazotization, which won't be formed with NaNO3. For conversion of nitrate ->
nitrite look here:
https://sciencemadness.org/talk/viewthread.php?tid=52 (preparation of ionic nitrites)
[Edited on 5-3-2006 by Phel]
|
|
solo
International Hazard
Posts: 3975
Registered: 9-12-2002
Location: Estados Unidos de La Republica Mexicana
Member Is Offline
Mood: ....getting old and drowning in a sea of knowledge
|
|
Reference Information:
aniline
Iodobenzene
I seems to me it's easier to make iodobenzene starting with benzene, otherwise you would have to find a way to convert and amine to the halogen you
seek..... solo
http://www.chemguide.co.uk/organicprops/arylhalides/preparat...
[Edited on 5-3-2006 by solo]
It's better to die on your feet, than live on your knees....Emiliano Zapata.
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
Solo aniline is what I have to work with, actualy hcl variety. See att. reference material I have been looking at. And as I posted query nitrate vs
ntrite since I have the one & not the other. Everyones discussion and pointers are much appreciated
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
ref i am looking at
Attachment: 7_Diazotisation_aniline.html (19kB) This file has been downloaded 3598 times
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
also
Attachment: propsdiazo.html (12kB) This file has been downloaded 1138 times
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
and
Attachment: preparation.html (7kB) This file has been downloaded 1223 times
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
finally
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
and finally
Attachment: diazotisation.htm (6kB) This file has been downloaded 1636 times
|
|
garage chemist
chemical wizard
Posts: 1803
Registered: 16-8-2004
Location: Germany
Member Is Offline
Mood: No Mood
|
|
I have done the production of iodobenzene from aniline myself, and it worked nicely. You do need sodium nitrite though.
Go to the pharmacy and ask for it if necessary, or reduce your sodium nitate with molten lead.
The crude iodobenzene is black, and must be washed with HCl, NaOH and then redistilled.
|
|
Dr.Muto
Harmless
Posts: 17
Registered: 2-3-2006
Member Is Offline
Mood: No Mood
|
|
Thak You
|
|