Accession Number : AD0293160

Title :   DETERMINATION OF PHTHALIC ANHYDRIDE IN ALKYD RESINS BY TRANSESTERIFICATION AND GAS CHROMATOGRAPHIC SEPARATION

Corporate Author : ARMY COATING AND CHEMICAL LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : ESPOSITO,G.

Report Date : 20 NOV 1962

Pagination or Media Count : 1

Abstract : A gas-liquid chromatographic method was developed for the determination of phthalic anhydride in coating resins which is not affected by the presence of other dibasic acids. A qualitative chromatographic method developed in this laboratory was modified to produce quantitative results. The resin is subjected to transesterification with lithium methoxide and phthalic anhydride is determined as dimethyl phthalate using an internal standard. (Author)

Descriptors :   *CHROMATOGRAPHIC ANALYSIS, *PLASTICS, ANHYDRIDES, DIBASIC ORGANIC ACIDS, PHTHALIC ACIDS

Distribution Statement : APPROVED FOR PUBLIC RELEASE