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

Printable Version  
Author: Subject: tricholoracetic acid
dusty
Harmless
*




Posts: 1
Registered: 11-12-2007
Member Is Offline

Mood: No Mood

[*] posted on 11-12-2007 at 12:33
tricholoracetic acid


Does anyone know the relative purity of reagent grade trichloroacetic acid vs. ACS?
View user's profile View All Posts By User
Sauron
International Hazard
*****




Posts: 5351
Registered: 22-12-2006
Location: Barad-Dur, Mordor
Member Is Offline

Mood: metastable

[*] posted on 11-12-2007 at 13:08


It's a meaningless question. ACS reagent chemicals are manufactured to standards published by ACS, while the meaning of "reagent grade" can vary from one manufacturer to another, there being no agreed upon meaning for the term.

You can easily find what ACS means by ACS reagent trichloroacetic acid by looking in nAldrich's catalog,

Then you can look at the catalogs of various major chemical manufacturers and see what % purity they state for reagent grade or similar terminology for same compound.

Most of them will have such information online.

ACS reagents often are defined as to what limits of specific impurities are tolerated. Usually that is not the case with "lab grade", "AR grade" or "for synthesis" or "purum" etc. A %age may be stated, but impurities not usually enurated much less quantified.




Sic gorgeamus a los subjectatus nunc.
View user's profile View All Posts By User
chemrox
International Hazard
*****




Posts: 2961
Registered: 18-1-2007
Location: UTM
Member Is Offline

Mood: LaGrangian

[*] posted on 11-12-2007 at 14:46


I think your question about trichloracetic acid is better approached from what is the intended use and what impurities the manufacturers list for various offerings.



"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
View user's profile View All Posts By User

  Go To Top