Author:
M. Bhutani Indian Institute of Technology Department of Chemistry Hauz Khas 110029 New Delhi (India)

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Abstract  

Deposition of carrier-free32P on ignited PbF2, BaF2, SrF2, CaF2 and MgF2 is described as a function of the pH and the concentration of added lattice and non-lattice ions. The influence of these factors in enhancing the carrying is explained. The carrying is explained in the light of surface adsorption taking place by the mechanism of counter-ion exchange. In contrast with expectations, the carrying is favoured in the presence of non-lattice cations (e. g. Ba2+ and Sr2+) having the same electric charge and comparable ionic radii. These observations are discussed in the light of findings made in the case of lead sulphate, where the carrying of the same tracer is adversely affected by the presence of these foreign cations. The structural characteristics which are assumed to be responsible for the anchoring of these non-lattice cations by the lattice anion on the lead sulphate surface are supposed not to exist in these cases.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)