Record Display for the EPA National Library Catalog
RECORD NUMBER: 40 OF 61Main Title | Purity and Heat of Fusion Data for Environmental Standards as Determined by Differential Scanning Calorimetry. | |||||||||||
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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 | |||||||||||
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Collation | 35p | |||||||||||
Abstract | 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. |