Metal oxyanions

Many important soil components are not present as simple cations or anions but as oxyanions that include both important metals and nonmetals. The most common and important metal oxyanion is molybdate (Mo042 ). The most common and important nonmetal oxyanions are those of carbon (e.g., bicarbonate [HC03 ] and carbonate [C032-]), nitrogen (e.g., nitrate [N03 ] and nitrite [NQ2 ]), and phosphorus (e.g., monobasic phosphate [H2P04 ], dibasic... 

Truebenbach, C.S. Houalla, M. Hercules, D.M. Characterization of Isopoly Metal Oxyanions Using ESI Time-of-Flight-MS. J. Mass Spectrom. 2000, 35, 1121-1127. 

Table 39 Selection of Coordinated Oxyanions and Anhydrous Transition Metal Oxyanion Salts1...

Unlike the other metal oxyanions discussed above, the thermodynamic driving force for reduction of U(VI) by Fe° is only moderately favorable under conditions of environmental relevance. Because the dominant forms of U(VI) in most groundwaters are carbonate complexes, the following overall (reduction and precipitation) reaction might be expected ... 

Anions (including metal oxyanions such as chromate) can also be adsorbed, as can anionic ligands (such as phosphates and sulfates), and dissolved or suspended humic substances (such as fulvic acids). The ionic strength and pH influence the sorption of anions since they compete with the OH- ions... 

A problem that has recently aroused considerable interest concerns the site of protonation in complex transition metal oxyanions. Klemperer and coworkers have employed NMR for studying the... 

When one studies sorption processes, be they with metals, oxyanions, radionuclides, or organic chemicals, a biphasic behavior is almost always observed... 

THE CHEMISTRY AND CATALYTIC PROPERTIES OF TRANSITION METAL OXYANIONS IN SODALITE CAGES... 

The salt loaded nosean systems and their cation exchanged forms provide convenient model systems for investigating the chemistry of metal oxyanions in... 

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