Thermodynamic data for Iron (II) in high-saline solutions at temperatures up to 90 C / GRS, Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) mbH ; Andrés G. Muñoz, Tina Scharge, Helge C. Moog ; this report was prepared under contract No. 02 E 10075 with the German Federal Ministry of Economics and Technology (BMWi)