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

Printable Version  
Author: Subject: Is there anyway to prepare Picric acid from terephthalic acid?
chemaniac
Harmless
*




Posts: 4
Registered: 12-9-2004
Member Is Offline

Mood: No Mood

[*] posted on 12-9-2004 at 23:12
Is there anyway to prepare Picric acid from terephthalic acid?


Is there anyway to prepare Picric acid from terephthalic acid?
Please guide me in this method with all the details.




counter exploder!
View user's profile View All Posts By User
vulture
Forum Gatekeeper
*****




Posts: 3330
Registered: 25-5-2002
Location: France
Member Is Offline

Mood: No Mood

[*] posted on 13-9-2004 at 00:17


Big mistake.

You're asking to be spoonfed. :mad:
Put some thought in it yourself, don't be lazy. :mad:

Unless you show you've put some thought into this yourself this thread is gone.

Members, please do not spoonfeed this guy.




One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
View user's profile View All Posts By User
JohnWW
International Hazard
*****




Posts: 2849
Registered: 27-7-2004
Location: New Zealand
Member Is Offline

Mood: No Mood

[*] posted on 13-9-2004 at 01:14


Understood, Vulture.

Terephthalic acid is para-benzenedicarboxylic acid, p-C6H4(COOH)2. Usually used for making fibrous polymers with, by polyesterification with 1,end-diols, like that with(CH2OH)2 which is called Mylar/Dacron/Terylene.

To convert it to picric acid would require decarboxylation, then conversion to phenol (I will not say how here, as Vulture insists), as intermediate steps. The whole process would be quite uneconomic compared to starting from benzene or phenol, anyway.

John W.
View user's profile View All Posts By User
AngelEyes
Hazard to Others
***




Posts: 187
Registered: 24-1-2003
Location: South of England
Member Is Offline

Mood: Better than it used to be.

[*] posted on 13-9-2004 at 03:11


This guy is asking the same question on E&W under the name quashimailk - wasn't that user banned here?
View user's profile View All Posts By User
chemaniac
Harmless
*




Posts: 4
Registered: 12-9-2004
Member Is Offline

Mood: No Mood

sad.gif posted on 16-9-2004 at 00:34
i m not asking to be spoonfed!


I have read that sodium benzoate can be decarboxylated to Phenol, by fusion with NaOH.
I need to know what if I first convert terephthalic acid into sodium salt and then carry out its decaboxylation. Apparently it seems to produce resorcinol,but unfortunately i have lack of appropriate apparatus and reagents, so its not possible for me to carry out all the experiments and to test the yield.
Please,don't think that i m a spoonfeeder.Its very difficult for a guy ho has no access to all the accesories of a chemical lab.
Looking forward for ur co-operation.




counter exploder!
View user's profile View All Posts By User

  Go To Top