An analysis of experimental measurements the properties chlorine dioxide gives ΔfG°(OClO·, g) = 116.3 ± 2.0, ΔfH°(OClO·, 98.5 2.0 kJ mol−1, ΔfG°(ClOO·, 112.5 1.5, and ΔfH°(ClOO·, 98.3 1.5 mol−1. OClO· solubility Ksol 1.01 0.15 mol l−1 atm−1, ΔsolH −28.9 ΔsolS −96.9 4 J mol−1 K−1. The uncertainties provided in this paper are expanded U or 2 σ (95% confidence internal). These results redox potent...

Abstract Magnetite stability in ultramafic systems undergoing subduction plays a major role controlling redox states of the fluids liberated upon dehydration reactions, as well residual rocks. Despite their relevance for evaluation conditions, systematics and geochemistry oxide minerals have remained poorly constrained subducted Here, we present detailed petrological geochemical study magnetite...

Low resistivity in argillaceous sandstone reservoirs may be attributed either to the effect of microporosity, or to specific effects due to clays and/or to conducting minerals. In the frame of a study on pore lining chlorite bearing sandstones, from different hydrocarbon reservoirs, measurements of cation exchange capacities and specific surface areas have been performed, on whole rocks as well...

Flotation is the most known beneficiation method for separation of complex and refractory iron ores. As a typical iron-containing silicates, it difficult to separate chlorite from specularite, because similar surface physicochemical properties. In this study, selective depression effect sodium hexametaphosphate (SHMP) was conducted via cationic micro-flotation. The adsorption mechanism between ...

late neoproterozoic-early cambrian schists have been occurred in southwest of zanjan city from the soltanieh belt. the soltanieh belt in northwest of iran is uplifted basement of precambrian-paleozoic in main central iran zone and includes outcrops of precambrian, paleozoic and mesozoic formations. late neoproterozoic-early cambrian schists, the oldest stratigraphy unit in the region, consist o...