and AnO
Species in Geologic EnvironmentsChoppin, G. R.*; Bronikowski, M.*; Chen, J.*; Byegard, J.*; Rai, D.*; Yui, Mikazu
This report provides thermodynamic data for predicting concentrations of pentavalent and hexavalent actinide species (AnO
and AnO
) in geologic environments, and contributes to an integration of the JNC chemical thermodynamic database, JNC-TDB (previously PNC-TDB), for the performance analysis of geological isolation system for high-level radioactive wastes. Thermodynamic data for the formation of complexes or compounds with hydroxide, chloride, fluoride, carbonate, nitrate, sulfate and phosphate are discussed in this report. The estimation of the stability constants by use of the Born equation is included. The Pitzer parameters for AnO and AnO, redox potentials and equilibrium constants of redox reactions for actinides are also included.
Language |
: | English |
|---|---|---|
Report No. |
: | JNC TN8400 99-012 |
Pages |
: | 155 Pages |
Publication Year/Month |
: | 1999/01 |
| : | ||
Paper URL |
: | |
Keywords |
: | Born equation; JNC-TDB; Pitzerパラメータ; アクチニド; アクチニド化学種; アクチニド化合物; ウラニル錯体安定度定数; ネプツニウム錯体; ふっ化物; プルトニウム錯体; りん酸; 安定度定数; 塩化物; 化学平衡; 錯体生成; 酸化還元反応; 硝酸; 水酸化物錯体; 性能評価; 整備; 炭酸; 地層処分; 地層処分システム; 地中処分; 電位; 熱力学; 熱力学データベース; 廃棄物; 廃棄物処分施設; 廃棄物処理; 平衡定数; 放射性廃棄物; 溶解度; 溶解度積; 硫酸 |
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