NDLI: Combined facile methods of the DSC and origin lab program to study the dehydration kinetics of KMnPO$_{4}$·H$

Content Provider	Springer Nature Link
Author	Danvirutai, Chanaiporn isong, Pittayagorn
Copyright Year	2014
Abstract	Thermal dehydration kinetics of potassium manganese phosphate monohydrate (KMnPO$_{4}$·H$_{2}$O) was studied using alternative procedure, including the combination between DSC data and Origin Lab program. The results revealed that this convenient method is a suitable tool for the determination of reliable kinetic parameters. The peak area at current temperature can be calculated using the Origin Lab program. Consequently, the kinetic parameters by non-isothermal equations can be calculated. The apparent activation energies were found to be 101.26 and 101.45 kJ mol$^{−1}$ using KAS and iterative methods, respectively. The natural logarithms of pre-exponential factor (lnA) were found to be 12.2775 and 12.4157, respectively based on mechanism function of g(α) = (1−(1 – α)$^{2/3}$). The experimental enthalpy change of the dehydration process of the studied compound was about 290 J g$^{−1}$. All detectable peaks from XRD patterns of this compound are indexed as the formula KMnPO$_{4}$·H$_{2}$O according to the standard data file PDF#802360. The SEM micrograph exhibits the loose agglomeration phenomenon among the thin plate, which supports the existence of the layered structure compound.
Starting Page	2249
Ending Page	2255
Page Count	7
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	119
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-12-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dehydration kinetics Kinetics from DSC KMnPO$_{4}$·H$_{2}$O Origin lab Program for DSC Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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