Article (Scientific journals)
Über die physikalischen Veränderungen die gewisse Schwefelverbinungen unter dem Einfluss der Temperatur erleiden
Spring, Walthère
1895In Zeitschrift für Physikalische Chemie, Stöchiometrie und Verwandtschaftslehre, 18, p. 553-558
 

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Keywords :
Pressure; Diffusion in solids; Sulfides; Pression; Diffusion dans les solides; Sulfures
Abstract :
[en] Spring, W. Zeitschrift fuer Physikalische Chemie, Stoechiometrie und Verwandtschaftslehre (1895), 18, 553-8; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Experiments analogous to those undertaken with metals (Abstr., 1895, ii, 37) were made on the sulphides of silver, arsenic, antimony, bismuth, copper, tin, cadmium, lead, and zinc. The amorphous sulphides obtained by precipitation were used, being first washed, dried, and lightly pressed into cylinders. The latter treatment was merely to bring the particles into contact, the pressure being so slight that the cylinders could be easily crumbled between the fingers. One half of the cylinder was kept for comparison, the other enclosed in an exhausted glass tube and exposed for nine days of 7-8 hours to a temperature of 265° (150° for the arsenic sulphide). The cylinder of silver sulphide, after this treatment, was steel grey, with a metallic lustre, and with crystal faces visible on the surface. It could not be broken by the hand, and, after forcible breaking, exhibited a crystalline fracture resembling that of steel. Similar results were also obtained with the other compounds. Uncompressed powders were also employed, which formed compact masses, with, usually, indications of a crystalline nature. The author points out the probable importance of these results in geology, as they indicate the possible formation of crystalline rocks, etc., without fusion or the aid of a solvent. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved.
Disciplines :
Chemistry
Author, co-author :
Spring, Walthère ;  Université de Liège - ULiège
Language :
German
Title :
Über die physikalischen Veränderungen die gewisse Schwefelverbinungen unter dem Einfluss der Temperatur erleiden
Alternative titles :
[en] Physical Alteration of Certain sulfur Compounds at Temperatures Below their Melting Points
Publication date :
1895
Journal title :
Zeitschrift für Physikalische Chemie, Stöchiometrie und Verwandtschaftslehre
ISSN :
0372-8501
Publisher :
Wilheilm Engelmann, Leipzig, Germany
Volume :
18
Pages :
553-558
Commentary :
Traduit de : "Sur les modifications physiques que subissent certains sulfures sous l'influence de la température" http://hdl.handle.net/2268/68171
Available on ORBi :
since 09 August 2010

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