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Showing 1 to 20 of 23 for “"magnesium sulfate"”.
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Evaluation of the potential use of langbeinite (potassium sulfate / magnesium sulfate) as a reclaiming material for sodic and saline sodic soils.
Soil sodicity/salinity and scarcity of water are important constraints of agricultural development in arid lands. Excessive exchangeable sodium of sodic and saline sodic soils cause swelling of clays and dispersion of colloidal particles, and results in poor soil-water-air relationships. Reclaiming …
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Adsorption of ammonia and carbon dioxide in solutions of magnesium sulfate / by Ernest T. Schoenwald, Frank E. Rush, Richard J. McGarry.
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1944
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Hydrometallurgical Processing Of Rare Earth Elements From Ion Adsorption Clays
… systems. This study showed that ammonium sulfate extracts less aluminum content than magnesium chloride. Even when magnesium sulfate (hydrate) extracts less aluminum (impurity in Pregnant Leach Solution) content than the other lixiviants used in the study, magnesium sulfate extracts less …
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Rheological properties of candle filter deposits at elevated temperatures and pressures
… sintering, revealing a system in which smaller magnesium sulfate particles adhere to the surface of larger calcium sulfate crystals, and apparently densifying more at higher magnesium sulfate compositions.
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Sulfate attack on cement paste with volcanic ash : durability analysis
Sulfate attack is responsible for deterioration of infrastructure and often occurs in sulfate rich soil or brackish environment. The aim of this study is to investigate the effect of volcanic ash cements when exposed to different forms of sulfate attack, specifically to sodium and magnesium …
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Economic evaluation of a "Krystal" crystallizer
A study was made cf the cost per pound of magnesium sulfate monohydrate produced by a "Krystal" crystallizer at recirculation rates from 20 to 40 gallons per minute and operating temperatures from 150 to 180 °F. From these tests, the optimum operating conditions within the range of these variables …
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An investigation of some of the factors affecting spray drying
… investigation. Preliminary tests were made with magnesium sulfate and sodium sulfate in order to get the dryer to function properly. Four tests were made, using sodium sulfate solutions, in order to determine the effect of the degree of atomization. Three tests were made, using sodium sulfate …
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CHARACTERIZATION OF HALOPHILIC MICROORGANISMS AND SULFATE SALTS FROM THE HYPERSALINE LAKES OF BRITISH COLUMBIA, CANADA; AN ASTROBIOLOGICAL PERSPECTIVE
… loss of liquid water on Mars would have produced magnesium sulfate rich brines. The Basque Lakes of British Columbia, Canada, are an excellent terrestrial analogue for this site, as they possess highly concentrated brines fed by ground water springs, abundant sulfate salts, and are inhabited by …
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Compatibility and stability of 8% amino acids solution in combination with electrolytes, vitamins and antibiotics
… of potassium phosphate, calcium gluconate, and magnesium sulfate well in excess of “usual” therapeutic concentrations. Similarly, commonly employed vitamin supplements and insulin were examined in combination with the hyperalimentation solution and failed to demonstrate signs of physical …
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The effect of magnesium ions on the current efficiency of magnesium anodes used as cathodic protectors
… to determine, if possible, whether or not the magnesium ion concentration in the backfill has a significant effect upon the current efficiency of a pure magnesium anode when used to protect a steel cathode. Accordinging to H.A. Robinson, there should normally be no effect, but he indicated that …
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Dental Health and Socioeconomic Status: Their Relationship with Preterm Labor in Rural Western South Dakota A Pilot Study
… membranes or for treatment of preterm labor with magnesium sulfate. Data pertaining to the participants' pregnancy, related health history, dental health including brushing and flossing routines, and family income level were collected in an interview using a questionnaire.<br> The findings of this …
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New Methods of DNA Assembly, Gene Regulation with a Synthetic sRNA, and Cyanobacterium Phenotype Monitoring with Raman Spectroscopy
… deprivation, acetate, sodium chloride and magnesium sulfate) on the phenotypic response of the cyanobacterium Synechocystis sp. PCC6803. The RametrixTM LITE Toolbox for MATLAB® enabled processing of Raman spectra and application of principal component analysis (PCA) and discriminant …
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Mineral-Surface Chemistry of Hydroxyapatite and Urea-Rich Solutions
… (urea, ammonium formate, and water, UAFW) and magnesium sulfate. Time-dependent infrared studies were conducted via polarization modulated – infrared reflection-absorption spectroscopy (PM-IRRAS) to monitor structural changes of the mineral surface. Thin hydroxyapatite films were analyzed with …
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Protein-associated calciuria in a free living population
… last three days of the five. Urinary calcium, magnesium, sulfate and nitrogen were determined on these samples. There was a significant correlation of r = .31 (p < .0001) between dietary protein and urinary calcium. Linear regression analysis (y = 1.22x + 98) revealed that the slope of the line …
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The Effect of the Chemical Composition of Low Salinity Water on the Growth, Development, and Survival of Cultured Juvenile Blue Crabs
… (CaCl<sub>2</sub>); NaCl, CaCl<sub>2</sub>, and magnesium chloride(MgCl<sub>2</sub>); NaCl, MgCl<sub>2</sub>, CaCl<sub>2</sub>, and potassium Chloride 9KCl); and SS. Another set of treatments examined the addition of magnesium sulfate (MgSO<sub>4</sub>) to the mixed ion solutions. The results of …
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Sustainable bacteria-based self-healing fiber reinforced concrete
… and 2.5 percent, cured in both fresh water and magnesium sulfate water solution, were tested to examine concrete behavior in harsh environments. Additionally, steel fibers at volume fraction percentages (Vf percent) of 1.0 percent and 1.5 percent, along with 1.0 percent bacterial content, were …
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Spironucleus Vortens of the Freshwater Angelfish (Pterophyllum scalare): Growth Requirements, Chemotherapeutants, Pathogenesis and Immunity
… albendazole, fenbendazole, mebendazole, and magnesium sulfate was evaluated. The pathogenicity of S. vortens in angelfish was investigated in fish experimentally inoculated with trophozoites. This study provided information to help understand the pathogenesis of the parasites in the host. …
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Terahertz spectroscopy to explore the role of vibrational dynamics in systems with varying structural order and disorder
… in a transmission geometry on the example of magnesium sulfate heptahydrate. A novel method was developed to perform temperature and concentration calibrations of liquid samples at terahertz frequencies, enabling the studies of local concentration of semicrystalline systems.
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Sulfato de magnesio en intubación orotraqueal sin relajantes musculares: revisión sistemática con meta-análisis y análisis secuencial de ensayos
En anestesiología, el Sulfato de Magnesio actúa como sedante, analgésico y relajante muscular. La sedación se debe a la inhibición del receptor NMDA, reduciendo los requerimientos anestésicos halogenados y propofol. En analgesia, modula el estímulo nervioso y disminuye la liberación de …
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Synthesis and Characterization of Cationic Spherical Polyelectrolyte Brushes
… Surprisingly, for sodium iodide and magnesium sulfate the solubility increases again if the salt concentration is raised to 1 mol/l. At lowest ionic strength electrostatic interaction prevails and the brush layer is swollen in all cases by the osmotic pressure of the counterions. …
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