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1619978 
Journal Article 
Glass Capillary Gas Chromatography Of Homologous Series Of Esters. IV. Separation Of Homologous Series Of Certain Halogenopropyl Esters Of Aliphatic Carboxylic Acids On OV-101 
Komarek, K; Hornova, L; Horna, A; Churacek, J 
1983 
1 
Journal of Chromatography
ISSN: 0021-9673 
NIOSH/00141230 
281 
299-303 
The gas chromatographic behavior of chloropropyl esters of aliphatic monocarboxylic acids was examined. Separation of homologous series of chloropropyl esters was performed on a gas chromatograph equipped with a flame ionization detector and a glass capillary column. The influence of chlorine (7782505) atoms in position 3 and two atoms in positions 2 and 3 of n-propyl esters and in positions 1 and 3 of isopropyl esters, and of increasing chain length and branching of the acid moiety of esters was studied using retention index increments. The increments were calculated as the difference between retention indices for 3-chloro, 2,3-dichloropropyl, and 1,3-dichloroisopropyl esters of aliphatic monocarboxylic acids and those for the corresponding unhalogenated esters. Increments for chlorine atoms decreased with increasing carbon chain length of acid moiety of esters for all the homologous series of both chlorated n-propyl and isopropyl esters of the lower branched and unbranched monocarboxylic acids. Increments for higher esters did not decrease, but fluctuated slightly. Comparison of retention index increments for 2,3-dichloropropyl esters and 1,3-dichloroisopropyl esters indicated that the values of the former for two chlorine atoms in 2,3-dichloropropyl esters were greater than those of the latter for two chlorine atoms in 1,3-dichloroisopropyl esters. The authors conclude that the values of the increments for chlorine in 2-chloropropyl esters are likely to be lower than those for chlorine in 3-chloropropyl esters. 
DCN-128847; Gas chromatography; Chlorinated hydrocarbons; Esters; Carboxylic acids; Chemical properties; Chemical analysis; Molecular structure; Alkyl groups; Flame ionization methods; Physical properties; Peaks