Zur Wasserlöslichkeit des Glases

Walther, Régis

doi:10.1002/prac.19150910119

Cited by 2 publications

(2 citation statements)

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“…However, it has been the authors' experience, using distilled water from a source originally containing very small quantities of impurities, that the freeing from ammonia and carbon dioxide was accomplished most easily by vigorous boiling for several minutes. A metal container is required for this operation, since hot water extracts appreciable quantities of alkali from glass vessels, as shown by Walther (8). Distilled water containing alkali yields high nitrogen results, as it is used to dilute the acid in the ammonia-distillate receiver.…”

Section: Micromethodsmentioning

confidence: 99%

Chromous Sulfate as Reducing Agent in Volumetric Determination of Iron

Thorton¹,

Sadusk²

1932

Ind. Eng. Chem. Anal. Ed.

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salts, which are undoubtedly very powerful reducing agents, have come into prominence for use in deoxidation methods of analysis within the last few years, Although this property of bivalent chromium was known at a comparatively early date, chromous chloride having been employed in gas analysis (12), it was not until recently that Buehrer and Schupp (2) demonstrated the feasibility of utilizing it in certain volumetric processes. Since then, methods depending upon reduction by a chromous compound have been brought out for the estimation of various elements either alone or in admixture with one or more others (IS).This present contribution consists in preparing a solution of chromous sulfate of the requisite purity and stability by a well-known convenient procedure, devising a reliable apparatus for storing and using the solution so obtained, and studying the reduction of a ferric salt at such temperatures as usually prevail in a working room.

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Section: Micromethodsmentioning

confidence: 99%