The formation of pyrite from hydrated iron oxide in aqueous solution at 20°C |
| |
Authors: | William M. B. Roberts |
| |
Affiliation: | (1) Baas-Becking Geobiological Laboratory, Bureau of Mineral Resources, Canberra, A.C.T., Australia |
| |
Abstract: | Experiments are described in which pyrite is synthesized at room temperature and atmospheric pressure from hydrated iron oxides and hydrogen sulphide under conditions similar to those expected in the natural environment. This synthesis differs from earlier work in that oxygen was rigorously excluded from the system and the pH was 5.6. During a later ageing period a reaction appears to take place in which iron monosulphide is converted to pyrite at pH 5.85.
Zusammenfassung Versuche zur Synthese von Pyrit bei Raumtemperatur unter atmosphärischem Druck, ausgehend von Eisenhydroxiden und Schwefelwasserstoff und somit unter gleichen Verhältnissen, wie in natürlicher Umgebung, werden beschrieben.Die Synthese unterscheidet sich von früheren Arbeiten durch den strengen Ausschluß von Sauerstoff und den pH-Wert von 5.6. In einer darauffolgenden Alterungsperiode scheint eine Reaktion einzusetzen, in der Eisenmonosulfid bei pH 5.85 zu Pyrit umgewandelt wird.
Published with the approval of the Director; Bureau of Mineral Resources, Geology and Geophysics. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|