Term
| oxidation state of halides (group 8A) |
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Definition
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Term
| how the environmental chemistry of F is different from that of other halides |
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Definition
| it's the weak acid anion of hydrofluoric acid |
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Term
| the acidity or alkalinity of halides |
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Definition
| strong acids (pKa between about -6 and -9.5) |
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Term
| the source of fluorine in soil |
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Definition
| derived from volcanic emissions (deposited on soil in rainwater) and from the weathering of primary minerals |
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Term
| what fluorine does in some minerals |
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Definition
| isomorphically substitutes for OH- in the mineral structures |
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Term
| the source of halides in soils, except for F |
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Definition
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Term
| how halide ions exist in soils |
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Definition
| primarily as free, uncomplexed, monovalent anions |
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Term
| what F may do in acidic soil solutions (pH < 6) |
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Definition
| react with Al3+ and Fe+3 to form soluble complexes |
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Term
| the retention of halides in soil |
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Definition
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Term
| do halides form mineral precipitates? |
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Definition
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Term
| one way halides can be weakly retained in soils |
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Definition
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Term
| where the AEC in acid soils comes from |
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Definition
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Term
| one way F can be strongly retained in soils |
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Definition
| by Fe and Al oxyhydroxides via ligand-exchange adsorption mechanisms, particularly in acid soils |
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Term
| the dominant halide in soil solutions |
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Definition
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