Results 41 to 50 of about 176,458 (336)
Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]
, 2014 Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum +5 more
core +3 more sources
Damage in porous media due to salt crystallization [PDF]
Physical Review E: Statistical, Nonlinear, and Soft Matter Physics
81 (2010) 066110, 2010 We investigate the origins of salt damage in sandstones for the two most common salts: sodium chloride and sulfate. The results show that the observed difference in damage between the two salts is directly related to the kinetics of crystallization and the interfacial properties of the salt solutions and crystals with respect to the stone. We show that,
arxiv +1 more source
Sulfate permeasesphylogenetic diversity of sulfate transport.
Acta Biochimica Polonica, 2009 Sulfate uptake, the first step of sulfate assimilation in all organisms, is a highly endoergic, ATP requiring process. It is under tight control at the transcriptional level and is additionally modulated by posttranslational modifications, which are not yet fully characterized.
Sebastian Piłsyk, Andrzej Paszewski
openaire +4 more sources
Geochemistry constrains global hydrology on Early Mars [PDF]
, 2019 Ancient hydrology is recorded by sedimentary rocks on Mars. The most voluminous sedimentary rocks that formed during Mars' Hesperian period are sulfate-rich rocks, explored by the $Opportunity$ rover from 2004-2012 and soon to be investigated by the $Curiosity$ rover at Gale crater.
arxiv +1 more source
The Affinity of the Sulfate- and Ether-Containing Surface-Active Ionic Liquids to Carbon Dioxide, Hydrogen Fluoride, Hydrogen Sulfide, and Water [PDF]
arXiv, 2022 The development of novel task-specific ionic liquids (ILs) represents an essential challenge in modern organic and physical chemistries. Recently we reported surface-active ILs contained the two well-known organic cations (1-butyl-3-methylimidazolium and tetrabutylammonium) and the two surface-active anions (lauryl sulfate, lauryl ether sulfate).
arxiv
Uranyl Sulfate Nanotubules Templated by N-phenylglycine
Nanomaterials, 2018 The synthesis, structure, and infrared spectroscopy properties of the new organically templated uranyl sulfate Na(phgH+)7[(UO2)6(SO4)10](H2O)3.5 (1), obtained at room temperature by evaporation from aqueous solution, are reported.
Oleg I. Siidra +6 more
doaj +1 more source
Applied Sciences, 2021 This paper presents experimental and analytical work of which the main objective was to support the introduction of a new technology for the production of sewer pipes. In this technology, the pipes produced consist of two differently produced parts.
Ivailo Terzijski +5 more
doaj +1 more source
Toxins, 2017 If chronic kidney disease (CKD) is associated with an impairment of kidney function, several uremic solutes are retained. Some of these exert toxic effects, which are called uremic toxins. p-Cresyl sulfate (pCS) is a prototype protein-bound uremic toxin to which many biological and biochemical (toxic) effects have been attributed.
Tessa Gryp +3 more
openaire +5 more sources
Studies of Effectiveness of Commercial Home Treatment Systems [PDF]
, 1984 Eleven home water systems were tested representing six different types of filtering systems. Tests were made for Sulfates, Nitrates, Phosphate, Iron and Escherichia coli and Enterobacter aerogenes before and after passing through a home treatment system.
Couser, Raymond D., Trigg, William W.
core +2 more sources
Liberation of sulfate from sulfate esters by soils [PDF]
Applied and Environmental Microbiology, 1976 When incubated with acid, alkaline, and neutral soils, a variety of synthetic sulfate esters representing the various classes of these compounds was hydrolyzed by enzymes, probably of microbial origin. The appearance of sulfate in the soil water occurred immediately after introduction into the soils with some esters, whereas with others it occurred ...
C Houghton, R A Rose
openaire +2 more sources