Barite (Ba[SO4]) is one of the promising candidates for sequestration radioactive waste. can incorporate radium (Ra) and form ideal solid solutions, i.e., (Ba,Ra)[SO4]. Together with isostructural celestite (Sr[SO4]), ternary (Ba,Sr,Ra)[SO4], may exist in natural conditions. Our fundamental understanding dissolution kinetics sulfates critically important a better risk assessment nuclear waste r...

The water-soluble colorless compound NaY[SO4]2 ? H2O was synthesized with wet methods in a Teflon autoclave by adding mixture of Na2[SO4] and Y2[SO4]3 8 to small amount water heating it up 190 °C. By slow cooling, single crystals could be obtained the trigonal crystal structure refined based on X-ray diffraction data space group P3221 (a = 682.24(5) pm, c 1270.65(9) Z 3). After its thermal deco...

Two salts of the chlorhexidine di-cation (H2CHx2+) - (H2CHx)(SO4)·3H2O and (H2CHx)(CO3)·4H2O - have been synthesised and characterised crystallographically.

Sulfate desorption and mobility in soil can be of both environmental and agronomic importance. This study was conducted to describe the desorption of SO 4 from agricultural soils under experimental conditions applicable to the movement of SO 4 in overland flow and runoff waters. The kinetics of SO 4 desorption from soil were investigated at five different water/soil ratios (10:1-400:1), five ti...

The hydrogeological processes driving the hydrochemical composition of groundwater in alpine pristine aquifer system Port del Comte Massif (PCM) are characterized through multivariate statistical techniques Principal Component Analysis (PCA) and Gaussian Mixture Models (GMM) framework Compositional Data (CoDa) analysis. Also, Natural Background Levels (NBLs) for NO3 SO4 Cl evaluated, which spec...