A determination of vapor pressure of barium in the thermal production of barium metal

Author

Thomas A. Theobald

Abstract

The Knudsen effusion method was used to find the equilibrium reaction pressure of barium for the following reactions:
4BaO + 2Al - 3Ba + BaO·Al₂O₃ (l)
4BaO + Si - 2Ba + 2BaO·SiO₂ (2).
The resulting barium pressure for reaction (l) ranged from 0.27 mm. Hg to 1.77 mm. Hg in a temperature range of 940°C to 1086°C. The barium pressures for reaction (2) varied from 0.38 mm. Hg to 1.94 mm. Hg in a temperature range of 1000°C to 1086°C. The free energies of formation of BaO·Al₂O₃ and 2BaO·SiO₂ at 1087°C were calculated from the pressure data and found to be -360,800 calories and -376,900 calories, respectively.

Advisor(s)

Schlechten, A. W.

Committee Member(s)

Larson, Andrew H.
Tappmeyer, Wilbur P.
Wolf, Robert V., 1929-1999

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1962

Pagination

iv, 94 pages

Note about bibliography

Includes bibliographical references (pages 90-93).

Rights

© 1962 Thomas A. Theobald, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1436

Print OCLC #

5949458

Electronic OCLC #

1035558948

Recommended Citation

Theobald, Thomas A., "A determination of vapor pressure of barium in the thermal production of barium metal" (1962). Masters Theses. 4163.
https://scholarsmine.mst.edu/masters_theses/4163