Arsenic thermodynamic propertie

O Hare, P.A.G. (1993) Calorimetric measurements of the specific energies of reaction of arsenic and of selenium with fluorine. Standard molar enthalpies of formation Af7/°m at the temperature 2.98.15 K of AsFs, SeF6, As2Se3, AS4S4, and As2S3. Thermodynamic properties of AsFs and SeF6 in the ideal-gas state. Critical assessment of AfH°m (AsF3, 1)), and the dissociation enthalpies of As-F bonds. Journal of Chemical Thermodynamics, 25, 391-402. 

O Hare, P.A.G., Lewis, B.M., Susman, S. and Volin, K.J. (1990) Standard molar enthalpies of formation and transition at the temperature 298.15 K and other thermodynamic properties of the crystalline and vitreous forms of arsenic sesquiselenide (As2S3). Dissociation enthalpies of As-Se bonds. Journal of Chemical Thermodynamics, 22, 1191-206. 

Perfetti, E., Pokrovski, G.S., Ballerat-Busserolles, K. et al. (2008) Densities and heat capacities of aqueous arse-nious and arsenic acid solutions to 350 °C and 300 bar, and revised thermodynamic properties of As(OH)3°(aq), AsO(OH)3°(aq) and iron sulfarsenide minerals. Geochimica et Cosmochimica Acta, 72(3), 713-31. 

Archer D. G. and Nordstrom D. K. (2003) Thermodynamic properties of some arsenic compounds of import to groundwater and other apphcations. J. Chem. Eng. Data... 

Archer, D. G., and Nordstrom, D. K., in press. Thermodynamic properties of selected arsenic species of import to ground-water applications Journal of Chemical and Engineering Data. 

RAS/MED] Rasulov, S. M., Medzhidov, R. A., Thermodynamic properties of glassy, crystalline, and liquid arsenic selenide, Russ. J. Phys. Chem., 51, (1977), 969-970. Cited on page 190. 

Reich, M. and Becker, U. (2006) First-principles calculations of the thermodynamic mixing properties of arsenic incorporation into pyrite and marcasite. Chemical Geology, 225(3-4), 278-90. 

Pankratov, A.N. and Uchaeva, I.M. (2000) A semiempirical quantum chemical testing of thermodynamic and molecular properties of arsenic compounds. Journal of Molecular Structure (Theochem), 498, 247-54. 

The results indicate that Fe oxides and potential redox are the main soil properties controlling arsenic sorption rate. Yellow Latosol adsorbed less arsenic presumably because of its kaolinite content. Kaolin particles which had clean surfaces and low ferric oxide contents showed no uptake of As (V). The soluble arsenate was controlled by adsorption/co-precipitation in soils. Both parameters (redox potential and Fe presence) are important in assessing the fate of arsenic-containing compounds in soil therefore, at higher redox levels arsenate were the predominant As species and their sol-ubihty was low. Due to the slow kinetics of the As (V) - As (III) transformation, a considerable amount of the thermodynamically unstable arsenate species was observed under reducing conditions. 

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