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RECORD NUMBER: 231 OF 297

Main Title Production of cis- and trans-Caronic Acids from delta-3-Carene.
Author Berg., Lloyd ;
CORP Author Montana State Univ., Bozeman. Dept. of Chemical Engineering.;Federal Water Pollution Control Administration, Washington, D.C.
Year Published 1967
Report Number FWPCA-WP-00510-05;
Stock Number PB-253 366
Additional Subjects Synthesis(Chemistry) ; Terpene compounds ; Oxidation ; Gas chromatography ; Separation ; Isomers ; Pulp mills ; Byproducts ; Infrared spectra ; Nuclear magnetic resonance ; Experimental design ; Optical isomers ; Cyclopropane dicarboxylic acid/dimethyl
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-253 366 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 100p
Abstract
The sole known source of delta-3-carene, a bicyclic terpene, in the United States and Canada is in the by-product turpentine produced by five western Kraft pulp mills. The present potential supply of delta-3-carene is 1000 gallons per day. Two cyclopropane ring-containing dibasic acids (cis- and transcaronic acids) were recovered in 99% purity from the mixture of oxidation products obtained by the potassium permanganate oxidation of delta-3-carene in acetone. The identification of cis- and trans-caronic acids was based on commercial analysis for carbon, hydrogen and oxygen, and on infrared and nuclear magnetic resonance spectroscopy. The spectra are included in the thesis. The relative solubilities of the oxidation products in water varied at different pH values. Thus, they were separated by ether extraction of a water solution with pH control.