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Document Type

Research

Abstract

Experimental evidences are presented to support the necessity of precipitating barium sulfate by the addition of the sulfate to barium chloride rather than in the reverse order as is usually recommended. Factors such as loss due to creeping of the precipitate, temperature and time of digestion, heating of the barium sulfate to constant weight, and others were very carefully controlled. Data are given showing the results obtained using potassium, sodium, ammonium, and hydrogen sulfates. An explanation is offered why the results are low when the usual order of precipitation (BaCl2 to the sulfate) is followed. Microphotographs of barium sulfate obtained by different methods and under varying conditions are given.

Publication Date

1929

Journal Title

Proceedings of the Iowa Academy of Science

Volume

36

Issue

1

First Page

261

Last Page

261

Copyright

© Copyright 1929 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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