ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Gas chromatography of methyl esters of aromatic mono-, di-, and tricarboxylic acids formed during oxidation of a mixture of trimethylbenzenes

M. Hronec, J. Krupčík, and J. Baxa

Department of Chemistry and Technology of Petroleum, Slovak Technical University, 88O 37 Bratislava

 

Abstract: Relative elution time of six methyl dimethylbenzoates, five isomeric methylphthalic acids and three isomeric benzenetricarboxylic acids was estimated on packed and capillary columns. Apiezon L, QF-1, Reoplex-400 and ethylene glycol succinate + 2% H3PO4 at 140—214°C were the liquid phases in the packed columns, Apiezon К and Reoplex-400 at 209 and 168°C, respectively in the capillary ones. It has been found that no satisfactory separation of all theoretically possible isomeric methyl dimethylbenzoates took place at any of the packed columns; isomeric methyl methylphthalates were well separated on 10% ethylene glycol succinate + 2 % H3PO4; a good separation of all isomeric methyl dimethylbenzoates and methyl phthalates was achieved on a 45-m Reoplex capillary column at 168°C.

Full paper in Portable Document Format: 271a135.pdf

 

Chemical Papers 27 (1) 135–140 (1973)

Wednesday, October 23, 2019

IMPACT FACTOR 2018
1.246
SCImago Journal Rank 2018
0.274
SEARCH
Advanced
VOLUMES
International Conference on Coordination and Bioinorganic Chemistry
46th International Conference of SSCHE
© 2019 Chemical Papers