Thermodynamic stability and kinetics of perovskite dissolution

Thermodynamic stability and kinetics of perovskite dissolution

Perovskite, a SYNROC host mineral for nuclear wastes, is thermodynamically unstable in natural waters and in association with common minerals. Leach experiments demonstrate that CaTiO sub(3) (perovskite), SrTiO sub(3) and BaTiO sub(3) are as reactive as some silicate glasses below 100 degree C, but...

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Veröffentlicht in:Nature (London) 1981-01, Vol.289 (5796), p.358-362
Hauptverfasser: Nesbitt, H. Wayne, Bancroft, G. Michael, Fyfe, William S, Karkhanis, Suresh N, Nishijima, Akio, Shin, Shigemitsu
Format: Artikel
Sprache:eng
Schlagworte:
leaching
nuclear power plants
perovskite
radioactive materials
radioactive wastes
storage
thermodynamics
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Zusammenfassung:Perovskite, a SYNROC host mineral for nuclear wastes, is thermodynamically unstable in natural waters and in association with common minerals. Leach experiments demonstrate that CaTiO sub(3) (perovskite), SrTiO sub(3) and BaTiO sub(3) are as reactive as some silicate glasses below 100 degree C, but leach much more slowly than glasses above 100 degree C.
ISSN:0028-0836
1476-4687
DOI:10.1038/289358a0