+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn

+ Translate
+ Recently Requested

Exchange of alkaline earth cations in soil organic matter

Exchange of alkaline earth cations in soil organic matter

Soil Science 146(1): 6-14

We conducted batch equilibration ion exchange experiments to determine selectivity of peat for various alkaline earth ions with calcium as the resident cation. Two levels of Ca-neutralized peat (100 and 33%) were prepared from acid-washed samples (CEC=2.72 mol(+) kg-1) by equilibration with equivalent amounts of CO2-free satureated Ca(OH)2. The pH and concentrations of Ca2+ and the exchanging ion were determined at the end of each equilibration period. Both the 100 and 33% Ca-neutralized peat showed the preferential sequence Mg

(PDF emailed within 0-6 h: $19.90)

Accession: 001831075

Download citation: RISBibTeXText

DOI: 10.1097/00010694-198807000-00002

Related references

Effect of ionic strength on swelling and the exchange of alkaline earth cations in soil organic matter. Soil Science 146(2): 67-72, 1988

Effect of sodium and calcium cations on the ion-exchange affinity of organic cations for soil organic matter. Environmental Science & Technology 46(11): 5894-5901, 2012

Alkaline earth metal cation exchange: effect of mobile counterion and dissolved organic matter. Environmental Science & Technology 46(8): 4591-4598, 2012

Changes in exchangeable cations and exchange capacity of soil consequent on oxidation of its organic matter. J. agric. Sci., Camb, 65: 241-243, 1965

Effect of organic matter and its humified colloidal fractions on exchange of the cations usually involved in soil aggregation. Agricoltura Mediterranea 121(3): 198-204, 1991

Zeta potential of pyrophyllite in aqueous solutions of alkaline and alkaline earth metal cations and low-molecular-weight organic. Journal of Dispersion Science and Technology 28(5): 689-695, 2007

Ultrafine Na-4-mica: uptake of alkali and alkaline earth metal cations by ion exchange. Langmuir 20(12): 4920-4925, 2005

Ion-exchange affinity of organic cations to natural organic matter: influence of amine type and nonionic interactions at two different pHs. Environmental Science & Technology 47(2): 798-806, 2013

Cation exchange capacities of soil organic matter fractions in a Ferric Lixisol with different organic matter inputs. Agriculture, Ecosystems and Environment 100(2/3): 161-171, 2003

Release of ammonium and organic matter from soil by hydrofluoric acid and effect of hydrofluoric acid treatment on extraction of soil organic matter by neutral and alkaline reagents. Jour Agric Sci 52(2): 137-146, 1959

Adsorption of paraquat on soil organic matter: effect of exchangeable cations and dissolved organic carbon. Journal of Hazardous Materials 235-236: 218-223, 2013

Development and evaluation of a new sorption model for organic cations in soil: contributions from organic matter and clay minerals. Environmental Science & Technology 47(24): 14233-14241, 2014

Cations adsorbed to soil organic matter: A regulatory factor for the release of organic carbon and hydrogen ions from soils to waters. Water Air & Soil Pollution 85(3): 1095-1100, 1995

Solvation properties of natural and synthetic ionophores. I. Stoichiometry of complexes with alkali and alkaline earth cations in aprotic organic solvents. Biophysical Journal 40(1): 61-68, 1982