Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Purity and Heat of Fusion Data for Environmental Standards as Determined by Differential Scanning Calorimetry.
Author Donnelly, J. R. ; Drewes, L. A. ; Johnson, R. L. ; Munslow, W. D. ; Knapp, K. K. ;
CORP Author Lockheed Engineering and Sciences Co., Inc., Las Vegas, NV.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher c1990
Year Published 1990
Report Number EPA-68-03-3249; EPA/600/J-90/301;
Stock Number PB91-146555
Additional Subjects Differential thermal analysis ; Heat of fusion ; Herbicides ; Pesticides ; Organic compounds ; Calorimetry ; Purity ; Data acquisition ; Temperature ; Reprints ; Environmental standards
Library Call Number Additional Info Location Last
NTIS  PB91-146555 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/13/1991
Collation 35p
Differential scanning calorimetry (DSC) has been applied to 273 environmental standards, including pesticides, herbicides and related compounds. Members of the following chemical classes were analyzed: organophosphorus, organochlorine, phenol, triazine, uracil, phenoxy acid, urea, carboxylic acid, amide, and others including amines, organometallics, esters and heterocycles. Values for the heat of fusion, experimental temperature onset, theoretical temperature onset for 100% pure compound, and percent purity are presented. DSC was found to be a widely applicable method to most classes of organic environmental standards and their metabolites.