Record details

Title
    Thermodynamic properties of scorodite and parascorodite (FeAsO4 center dot 2H(2)O), kankite (FeAsO4 center dot 3.5H(2)O), and FeAsO4
Author
    Boerio-Goates, Juliana
    Drahota, Petr
    Filippi, Michal
    Grevel, Klaus-Dieter
    Kahl, Wolf-Achim
    Majzlan, Juraj
    Plášil, Jakub
    Woodfield, Brian F.
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Hydrometallurgy
Vol./nr.
    Roč. 117, č. APRIL
Pages
    10
Year
    2012
Thesaurus term
    entropy
    ferric arsenates
    formation enthalpy
    scorodite
    solubility
Keyword
    2H(2)O
    3.5H(2)O
    Center
    Dot
    FeAsO4
    Kankite
    Parascorodite
    Properties
    Scorodite
    Thermodynamic
Abstract (in english)
   Iron arsenates, especially scorodite (FeAsO4.2H2O), are the usual phases of choice for arsenic immobilization in waste forms of variable origin. The thermodynamic properties of this phase, necessary for the prediction of its dissolution or precipitation, have been usually constrained by solubility experiments. Here, we measured the thermodynamic properties of scorodite, its polymorph parascorodite, the mineral kaňkite (FeAsO4.3.5H2O), and the anhydrous FeAsO4 by a combination of calorimetric techniques, thus avoiding the inherent uncertainties of the solubility experiments.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    27. 4. 2014