Published 1987 | Version v1
Book

Kinetics of ion exchange on ammonium 12-molybdophosphate

  • 1. Durban-Westville Univ. (South Africa). Dept. of Chemistry

Description

The kinetics of ion exchange of K+, Rb+, Cs+ and T1+ on ammonium 12-molybdophosphate (AMP) was studied as a function of particle size, temperature and concentration of the exchanging ions, using a potentiometric method. Treatment of the kinetic data according to well-established rate laws has yielded diffusion coefficients, as well as enthalpies and entropies of activation for the exchange reactions. There is evidence that the exchange of K+ on AMP is accompanied by a phase transition. In the exchanger phase, the diffusion coefficient of Rb+ is consistently larger than that of Cs+, which distinguishes AMP from all other known ion exchangers. (author)

Additional details

Publishing Information

Publisher
Elsevier Applied Science.
Imprint Place
Barking (UK)
ISBN
1-85166-101-8
Imprint Title
Recent developments in ion exchange
Imprint Pagination
433 p.
Journal Page Range
p. 357-366.

Conference

Title
International conference on ion exchange processes (ION-EX '87).
Dates
13-16 Apr 1987.
Place
Wrexham (UK).

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
20014818
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACTIVATION ENERGY; AMMONIUM PHOSPHATES; ION EXCHANGE; MOLYBDENUM PHOSPHATES; PARTICLE SIZE; POTENTIOMETRY; REACTION KINETICS
Descriptors DEC
AMMONIUM COMPOUNDS; ENERGY; KINETICS; MOLYBDENUM COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; SIZE; TITRATION; TRANSITION ELEMENT COMPOUNDS