Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Resorcinol Test

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_9980

Used to detect the presence of phthalic acid in phthalate plasticizers or alkyd resins. It involves heating the product under test with concentrated sulfuric acid and resorcinol, and pouring the resulting mixture into excess of an alkaline solution. If phthalic acid is present, the fluorescein produced yields its characteristic yellow-green color.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA