COMPETITIVE ADSORPTION OF AQUEOUS CARBONIC AND ACETIC-ACIDS BY AN ALUMINUM-OXIDE

被引：38

作者：

SCHULTHESS, CP ^{[1
]}

MCCARTHY, JF ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831

来源：

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL | 1990年 / 54卷 / 03期

关键词：

D O I：

10.2136/sssaj1990.03615995005400030009x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The pH-dependent adsorption envelopes of Na salts of acetic acid (AcOH) and carbonates (H2CO3, HCO-3, CO2-3) on an Al oxide were studied to elucidate the effect of carbonates on the adsorption behavior of organic acids. The relative affinity of the aqueous compounds for adsorption by the Al oxide was determined based on the pH value of their adsorption edges. The relative affinity for adsorption by the Al oxide was OH > carbonate > acetate > Cl. The amount of both the acetate and carbonate adsorbed by Al oxide are reduced in the presence of competitive OH anions at high pH and high concentrations of Cl anions at low pH. -from Authors

引用

页码：688 / 694

页数：7

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