Heat Capacities and Thermodynamic Properties of Pinnoite and Inderite
Joint Authors
Sun, Kangrui
Li, Long
Zheng, Hanyu
Guo, Yafei
Deng, Tianlong
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-10
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In this paper, in order to understand the thermodynamic properties of natural minerals of pinnoite (MgB2O4·3H2O, Pin) and inderite (Mg2B6O11·15H2O, Ind) deposited in salt lakes, heat capacities of two minerals were measured using a precision calorimeter at temperatures from 306.15 to 355.15 K after the high purity was synthesized.
It was found that there are no phase transitions and thermal anomalies for the two minerals, and the molar heat capacities against temperature for Pin and Ind were fitted as Cp,m,pin = −2029.47058 + 16.94666T − 0.04396T2 + 3.89409×10−5T3 and Cp,m,Ind = −30814.43795 + 282.68108T − 0.85605T2 + 8.70708×10−4T 3, respectively.
On the basis of molar heat capacities (Cp,m) of Pin and Ind, the thermodynamic functions of entropy, enthalpy, and Gibbs free energy at the temperature of 1 K interval for the two minerals were obtained for the first time.
American Psychological Association (APA)
Zheng, Hanyu& Sun, Kangrui& Li, Long& Guo, Yafei& Deng, Tianlong. 2020. Heat Capacities and Thermodynamic Properties of Pinnoite and Inderite. Journal of Chemistry،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1181993
Modern Language Association (MLA)
Zheng, Hanyu…[et al.]. Heat Capacities and Thermodynamic Properties of Pinnoite and Inderite. Journal of Chemistry No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1181993
American Medical Association (AMA)
Zheng, Hanyu& Sun, Kangrui& Li, Long& Guo, Yafei& Deng, Tianlong. Heat Capacities and Thermodynamic Properties of Pinnoite and Inderite. Journal of Chemistry. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1181993
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1181993