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Showing 1 to 20 of 372 for “"ionic strength"”.
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Effect of ionic strength on heterogeneous nucleation of calcite during biomineralization
… yet the relationships for how macromolecules and ionic strength influence the crystallization of sparingly soluble salts (e.g., CaCO₃) are not established. Developing a physical picture of these controls is hindered by the traditional assumption that background electrolytes are inert. In this …
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The Solubility Product of Ferrous Sulfide in Solutions of Varying Ionic Strength
This investigation was undertaken specifically to study the variation of the solubility product of ferrous sulfide in aqueous solutions of potassium nitrate up to a concentration of 1 molar. |Ferrous sulfide was precipitated by bubbling hydrogen sulfide through solutions containing known …
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Influence of solution ionic strength on aggregation of novel water soluble phosphines and two phase catalysis
… due, in part, to the aggregation of the ligand. Ionic water soluble phosphines and their metal complexes are strong electrolytes. Salt addition for various purposes is a common technique in the aqueous phase chemistry. In the case of water soluble catalysis, the solution ionic strength may be …
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Sorption of Cadmium, Copper, Lead, and Zinc as influenced by pH, ionic strength and selected soil components
… is influenced by several factors, including pH, ionic strength, the presence of ionic composition or organic ligands, total amount of metals, and adsorbent loading. These conditions should be considered when evaluating metal sorption capacity of soil material or when applying laboratory results …
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Dynamic and equilibrium adsorption behaviour of ß-lactoglobulin at the solution/tetradecane interface: Effect of solution concentration, pH and ionic strength
… of different bulk concentration, solution pH and ionic strength on the dynamic and equilibrium pressures of BLG adsorbed layers at the solution/tetradecane (W/TD) interface has been investigated. Dynamic interfacial pressure (Π) and interfacial dilational elastic modulus (E’) of BLG solutions for …
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An investigation into the effect of ionic strength of plant water on valuable mineral and gangue recovery of a platinum bearing ore from the Merensky reef
… and water recoveries were obtained at higher ionic strength. The increase in the ionic strength in the absence of any depressant caused an increase in Cu and Ni recovery.
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Developing a relationship between ore feed grade and flotation performance
… process water. This recycling leads to increased ionic strength and may introduce deleterious ions dissolved in solution which affect reagent action, mineral surface properties and pulp chemistry. This may change the water quality over time and may in turn impact plant performance. The depletion …
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Considering the action of frothers under degrading water quality
… frothers behave under conditions of increased ionic strength. If it can be determined how these variables interact, then it may be possible to manage frother dosage in operations that recycle process water with the aim of reducing the quantity and cost of frothers and limiting the need for …
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Cellulose Nanocrystals as 'Green' Emulsifiers Stabilized Crude Oil in Water Emulsions
… emulsions. The effects of concentration of CNC, ionic strength of the aqueous phase, volume fraction of crude oil to water, and the presence of divalent ions on the stability of crude o/w emulsions were examined. Emulsions stabilized with different concentrations of CNC vary from 0.1 to 1.0wt% …
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Interfacial behavior of RNA-free MS2 bacteriophage particles
… respectively, found by varying pH at a constant ionic strength. The electrophoretic softness, found by varying ionic strength and constant pH, found that MS2 was 2.1 nm and that RNA-free MS2 was 1.6 nm, a slightly harder particle. Electrophoretic mobility results of these two particles are …
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The Effect of Switchable Additives on Colloidal Interactions Found in Oil Sands
… were investigated in the presence of cationic and anionic switchable surfactants, as well as switchable ionic strength additives. Of the additives studied, cationic switchable surfactants caused the greatest change in adhesion force between solutions free of CO2 and solutions saturated …
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A determination of the effect of changing collector chain length under varying Water Quality
… in water quality such as changes in pH, ionic strength (IS), and the concentration of total dissolved solids (TDS). The froth and pulp zones in the flotation cell work interactively to recover minerals and changes to water quality affect both zones. The factors affect the behavior of …
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Investigating electrolyte-reagent-mineral interactions in response to water quality challenges in the flotation of a PGM ore
… performed to examine the effect of increasing ionic strength of plant water and CMC dosage on froth stability and gangue recovery. Two-phase batch flotation and froth column tests were performed at various electrolytic conditions to assess the effect of ionic strength, electrolyte type and pH …
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Protein degradation in rat skeletal muscle : intracellular, non-lysosomal enzyme systems and their endocrine control
… an optimum pH of 8.5, much less rapidly at low ionic strength (insoluble myofilaments) than at high salt concentrations (solubilized proteins). When the myofibrillar fraction was added to the particle-free cytosol prepared from the muscle extracts, proteins of the cytosol were also degraded, but …
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Study of Chemical States, Composition and Adsorption Behavior of Iron Coated Granular Activated Carbon (Fe-GAC) for Selenate Removal and Feasible Adsorbent Modifications
… of 1 mg/L were conducted under three different ionic strengths to study selenate adsorption behavior. Selenate adsorption reached equilibrium within 48 hours with more than 85% of the equilibrium capacities being obtained within the first 6 hours. High removal efficiency (i.e., > 75%) was …
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Engineering the interface of cytochrome b5 and myoglobin for in vitro and in vivo applications
… As a result, the system works well only when the ionic strength of the buffer is <5 mM, which is outside the common physiological ionic strength. As a result, applications for this system are limited. To overcome this limitation, cytochrome b5 was engineered such that the interaction with …
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Water quality effects on the bubble-particle attachment of sulfide minerals
… bubble-particle interaction increases as the ionic strength of the plant water increases. This was the case with both chalcopyrite and galena particles. Literature would suggest that this result of an increase in particle recovery and bubble-particle attachment may be due to the increase in …
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Impact of molasses quality on ethyl alcohol fermentation by the yeast saccharomyces cerevisiae
… elevated concentrations of inorganic salts and ionic strength in industrial fermentation media have been implicated in negatively affecting fermentation. Based on these limited literature findings, the study addressed the effect of three cation constituents of molasses (K+, Mg2+ and Na+), …
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The Dynamical Behavior of Confined Aqueous Systems
… The effects of chemical additives, ionic strength and adjoining surface chemistry on the static and dynamic interactions of confined polymer aqueous solution were investigated.
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