Author

Hsu-Yuan Li

Document Type

Thesis - Open Access

Award Date

1969

Degree Name

Master of Science (MS)

Department

Chemistry

Abstract

The mass transfer from a hot zone to a cooler zone by means of a gaseous carrier has been observed to take place for many metals and compounds. Lee (19) studied the transport of many metals by their chloride and dissimilar gaseous chlorides. The subhalides, which form at higher temperatures on cooling disproportionate to metal and normal halide. This technique has been applied to purify many metals and compounds for which a sublimation or distillation method is not -practical due to the very high temperatures required. Aluminum has been purified using aluminum trichloride as a carrier (29). Pizzarello (25) has studied the epitaxial growth of GaAs in a system containing hydrogen and iodine gases (see more in text).

Library of Congress Subject Headings

Scandium
Gallium
Thermochemistry

Format

application/pdf

Number of Pages

51

Publisher

South Dakota State University

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