Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: iodobenzene
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 06:41
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?
View user's profile View All Posts By User
Phel
Hazard to Self
**




Posts: 72
Registered: 20-11-2004
Location: Scandium
Member Is Offline

Mood: viscous creep

[*] posted on 5-3-2006 at 06:57


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]
View user's profile View All Posts By User
solo
International Hazard
*****




Posts: 3966
Registered: 9-12-2002
Location: Estados Unidos de La Republica Mexicana
Member Is Offline

Mood: ....getting old and drowning in a sea of knowledge

[*] posted on 5-3-2006 at 07:14


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.
View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:36


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
View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:37


ref i am looking at

Attachment: 7_Diazotisation_aniline.html (19kB)
This file has been downloaded 3514 times

View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:39


also

Attachment: propsdiazo.html (12kB)
This file has been downloaded 1084 times

View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:41


and

Attachment: preparation.html (7kB)
This file has been downloaded 1164 times

View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:42


finally
View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:44


and finally

Attachment: diazotisation.htm (6kB)
This file has been downloaded 1589 times

View user's profile View All Posts By User
garage chemist
chemical wizard
*****




Posts: 1803
Registered: 16-8-2004
Location: Germany
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 08:55


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.
View user's profile View All Posts By User
Dr.Muto
Harmless
*




Posts: 17
Registered: 2-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 5-3-2006 at 09:38


Thak You
View user's profile View All Posts By User

  Go To Top