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Characterization of radium sulphate

Hedström, Hanna and Persson, Ingmar and Skarnemark, Gunnar and Ekberg, Christian (2013). Characterization of radium sulphate. Journal of Nuclear Chemistry. 2013:ID:94070, 1-4
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Official URL: http://dx.doi.org/10.1155/2013/940701

Abstract

This paper examines the crystal structure of radium sulphate and compares its structure to barium sulphate, strontium sulphate, and lead sulphate. The radium sulphate powder was measured by both powder X-ray diffraction and EXAFS. The unit cell was determined to be orthorhombic, belonging to the Pnma (no. 62) space group with the cell parameters = 9.07, = 5.52, = 7.28 Å, and = 364.48 Å 3.These data support the fact that radium sulphate is isostructural with barium, strontium, and lead sulphate.The bond distances were determined using EXAFS.The mean Ra-O and S-O bond distances were found to be 2.96(2) and 1.485(8) Å, respectively, and the Ra-O-S bond angle was 127(2) ∘. Findings of EXAFS data are quite consistent and support the XRD data. These findings show that it is possible for radium to coprecipitate with barium, strontium, and lead in sulphate media to form a substitutional solid solution.

Authors/Creators:Hedström, Hanna and Persson, Ingmar and Skarnemark, Gunnar and Ekberg, Christian
Title:Characterization of radium sulphate
Series/Journal:Journal of Nuclear Chemistry (2314-4831)
Year of publishing :2013
Volume:2013
Number:ID:94070
Page range:1-4
Number of Pages:4
Publisher:Hindawi Publishing Corporation
ISSN:2314-4831
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:X Agricola extesions > X50 Chemistry
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Inorganic Chemistry
Agrovoc terms:Radium, Sulphates, Chemical structure, Solids, Chemistry
Keywords:Radium sulphate, Sulphates, Crystals, Crystal structure, Isostructure, Substitutional solids
URN:NBN:urn:nbn:se:slu:epsilon-e-1874
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-1874
Additional ID:
Type of IDID
DOI10.1155/2013/940701
ID Code:11062
Faculty:NL - Faculty of Natural Resources and Agricultural Sciences (until 2013)
Department:(NL, NJ) > Dept. of Chemistry (until 131231)
Deposited By: SLUpub Connector
Deposited On:25 Apr 2014 11:28
Metadata Last Modified:20 Feb 2015 09:49

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