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

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)

Document Details

Document Type
Technical Report
Publication Date
Nov 20, 1962
Accession Number
AD0293160

Entities

People

  • G. Esposito

Tags

DTIC Thesaurus Topics

  • Anhydrides
  • Buildings And Structures
  • Chemical Compounds
  • Materials
  • Materials Laboratories
  • Organic Compounds
  • Phthalates
  • Polyester Plastics
  • Research Facilities
  • Resins
  • Standards

Fields of Study

  • Chemistry

Readers

  • Analytical Chemistry
  • Organic Chemistry
  • Surface Coatings Technology.