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Title: High-temperature heat capacities of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass

Abstract

The heat capacities (C/sup 0//sub p/) of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass have been determined to an accuracy of +-1.0% by differential scanning calorimetry between 350 and 1000 K. Results have been combined smoothly with existing low-temperature heat capacity and entropy data, and fitted by least squares to the equations presented. The accuracy of the differential scanning calorimeter was checked by measuring the heat capacities of corundum and periclase and comparing these results with those published by the U.S. National Bureau of Standards. Calorimetric data for muscovite, pyrophyllite, and grossular were combined with data from recent equilibrium studies to derive improved values for ..delta..H/sup 0//sub f,298/ and ..delta..G/sup 0//sub f,298/ for muscovite, pyrophyllite, and grossular.

Authors:
; ;
Publication Date:
Research Org.:
Geological Survey, Reston, VA
OSTI Identifier:
6046185
Resource Type:
Journal Article
Journal Name:
Am. Mineral.; (United States)
Additional Journal Information:
Journal Volume: 64:1-2
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; ALUMINIUM SILICATES; SPECIFIC HEAT; ANORTHOSITES; CALCIUM SILICATES; CORUNDUM; GLASS; MAGNESIUM OXIDES; MUSCOVITE; PYROPHYLLITE; ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; ALUMINIUM OXIDES; CALCIUM COMPOUNDS; CHALCOGENIDES; IGNEOUS ROCKS; MAGNESIUM COMPOUNDS; MICA; MINERALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; ROCKS; SILICATES; SILICON COMPOUNDS; THERMODYNAMIC PROPERTIES; 152002* - Geothermal Data & Theory- Properties of Minerals & Rocks

Citation Formats

Krupka, K M, Robie, R A, and Hemingway, B S. High-temperature heat capacities of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass. United States: N. p., 1979. Web.
Krupka, K M, Robie, R A, & Hemingway, B S. High-temperature heat capacities of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass. United States.
Krupka, K M, Robie, R A, and Hemingway, B S. 1979. "High-temperature heat capacities of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass". United States.
@article{osti_6046185,
title = {High-temperature heat capacities of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass},
author = {Krupka, K M and Robie, R A and Hemingway, B S},
abstractNote = {The heat capacities (C/sup 0//sub p/) of corundum, periclase, anorthite, CaAl/sub 2/Si/sub 2/O/sub 8/ glass, muscovite, pyrophyllite, KAlSi/sub 3/O/sub 8/ glass, grossular, and NaAlSi/sub 3/O/sub 8/ glass have been determined to an accuracy of +-1.0% by differential scanning calorimetry between 350 and 1000 K. Results have been combined smoothly with existing low-temperature heat capacity and entropy data, and fitted by least squares to the equations presented. The accuracy of the differential scanning calorimeter was checked by measuring the heat capacities of corundum and periclase and comparing these results with those published by the U.S. National Bureau of Standards. Calorimetric data for muscovite, pyrophyllite, and grossular were combined with data from recent equilibrium studies to derive improved values for ..delta..H/sup 0//sub f,298/ and ..delta..G/sup 0//sub f,298/ for muscovite, pyrophyllite, and grossular.},
doi = {},
url = {https://www.osti.gov/biblio/6046185}, journal = {Am. Mineral.; (United States)},
number = ,
volume = 64:1-2,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1979},
month = {Mon Jan 01 00:00:00 EST 1979}
}