STUDY OF THE NITRITE-CHLORIDE AND NITRATE-NITRITE ION-EXCHANGE EQUILIBRIA IN DILUTED AND CONCENTRATED MEDIA

Authors
MARINA ML GARCIA MC POITRENAUD C
Citation
Ml. Marina et al., STUDY OF THE NITRITE-CHLORIDE AND NITRATE-NITRITE ION-EXCHANGE EQUILIBRIA IN DILUTED AND CONCENTRATED MEDIA, Reactive & functional polymers, 32(3), 1997, pp. 269-276
Citations number
22
Categorie Soggetti
Polymer Sciences","Engineering, Chemical","Chemistry Applied
Journal title
Reactive & functional polymers → ACNP
ISSN journal
13815148
Volume
32
Issue
3
Year of publication
1997
Pages
269 - 276
Database
ISI
SICI code
1381-5148(1997)32:3<269:SOTNAN>2.0.ZU;2-0
Abstract
The variation of nitrite-chloride and nitrate-nitrite selectivity coef ficients as a function of the water activity of the solution was deter mined for three anion exchangers of different crosslinking degree (X8, X4, and X2) in solutions of NaCl-NaNO2 and NaNO2-NaNO3 mixtures. Resu lts were compared with those obtained for the nitrate-chloride selecti vity coefficient. At least in Na+ medium, nitrate-nitrite selectivity coefficient can be estimated as a function of the water activity of th e solution from the ratio between nitrate-chloride and nitrite-chlorid e selectivity coefficients.