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ASTM-E2041:2008 Edition

$40.63

E2041-08e1 Standard Method for Estimating Kinetic Parameters by Differential Scanning Calorimeter Using the Borchardt and Daniels Method

Published By Publication Date Number of Pages
ASTM 2008 9
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ASTM E2041-08e1

Historical Standard: Standard Method for Estimating Kinetic Parameters by Differential Scanning Calorimeter Using the Borchardt and Daniels Method

ASTM E2041

Scope

1.1 This test method describes the determination of the kinetic parameters of activation energy, Arrhenius pre-exponential factor, and reaction order using the Borchardt and Daniels treatment of data obtained by differential scanning calorimetry. This test method is applicable to the temperature range from 170 to 870 K (āˆ’100 to 600 Ā°C).

1.2 This treatment is applicable only to smooth exothermic reactions with no shoulders, discontinuous changes, or shifts in baseline. It is applicable only to reactions with reaction order n ā‰¤ 2. It is not applicable to autocatalyzed reactions and, therefore, is not applicable to the determination of kinetic parameters for most thermoset curing reactions or to crystallization reactions.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This test method is similar, but not equivalent to, ISO Method 11357, Part 5, that contains provisions for additional information not supplied by this test method.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

activation energy; Arrhenius frequency factor; Borchardt and Daniels kinetics; differential scanning calorimetry (DSC); kinetics; pre-exponential factor; reactions; Activation energy; Arrhenius kinetic constants; Borchardt and Daniels kinetics; Differential scanning calorimetry (DSC); Exothermic temperature analysis; Kinetic behavior/characteristics/parameters; Pre-exponential factor; Reactions

ICS Code

ICS Number Code 17.200.10 (Heat. Calorimetry)

DOI: 10.1520/E2041-08E01

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
Summary of Test Method
2 Basis of Methodology
Significance and Use
Interferences
3 Apparatus
Calibration
Procedure
FIG. 1
4 Calculation
5 Report
Precision and Bias
FIG. 2
6 Keywords
X1. TEST FOR nth ORDER OR AUTOCATALYTIC REACTIONS
X1.1
X1.2
X1.3
X1.4
X1.5
X1.6
7 FIG. X1.1
8 X2. COMPARATIVE RESULTS
X2.1
X2.2
X2.3
X2.4
X2.5
FIG. X1.2
ASTM-E2041
$40.63