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X-ray diffraction data for two new calcium uranium (VI) hydrates

Published online by Cambridge University Press:  10 January 2013

J. M. S. Skakle ,
L. P. Moroni  and
F. P. Glasser
J. M. S. Skakle
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB9 2UE, Scotland
L. P. Moroni
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB9 2UE, Scotland
F. P. Glasser
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB9 2UE, Scotland
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Abstract

The X-ray powder diffraction patterns for two new synthetic calcium uranium (VI) silicate hydrate phases are reported. Ca1.5U6(OH)7O16·7H2O is orthorhombic, space group P*a*, with unit cell a=13.8949(14), b=12.0776(12), c=15.228(3) Å. The structure appears to be related to that of becquerelite. Ca2(UO2)2(Si2O5)3·10H2O was also indexed on an orthorhombic unit cell, a=12.075(3), b=15.406(6), c=26.043(6) Å. The Powder Diffraction File coverage of uranium-containing minerals which could, on the basis of their chemical formula, form in U-containing cements is also reviewed.

Information

Type
Research Article
Information
Powder Diffraction , Volume 12 , Issue 2 , June 1997 , pp. 81 - 86
Copyright
Copyright © Cambridge University Press 1997

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