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Exchange Reactions Between Phosphates and Soils: Hydroxylic Surfaces of Soil Minerals
Author(s) -
McAuliffe C. D.,
Hall N. S.,
Dean L. A.,
Hendricks S. B.
Publication year - 1948
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1948.036159950012000c0025x
Subject(s) - library science , citation , management , chemistry , archaeology , geography , computer science , economics
I SOTOPIC tracers are of value in following exchange reactions between surfaces and components of contiguous solutions. They were first used in this way by Paneth (13)* for determining specific surfaces of insoluble lead salts by exchange with the radioactive isotope of lead known as Th B, which is 82Pb and is hereinafter referred to as Pb*. Kolthoff and his students (8, 9) greatly extended work with this isotope and formulated clear concepts of the surface of PbSO4. The basic reaction is, PbSO4 (solid surface) + Pb* (solution) *=? Pb*SO4 (solid surface) + Pb (solution) The equilibrium constant for this isotopic exchange reaction is, of course, equal to i; hence,