Ion exchange. Medical search. Frequent questions

Ion exchangers are either cation exchangers, which exchange positively charged ions (cations), or anion exchangers, which exchange negatively charged ions (anions). (wikipedia.org)
Most salts dissolved in water are ions, either positively charged(cations), or negatively charged(anions). (fujifilm.com)
Anions are negatively charged ions such as nitrates and nitrites. (mantablog.nl)
negatively charged ions are called anions. (idreco.com)
It is then ensured that negatively charged ions replace the hydroxide ions. (aosmithme.com)

Typical ion exchangers are ion-exchange resins (functionalized porous or gel polymer), zeolites, montmorillonite, clay, and soil humus. (wikipedia.org)
However, the simultaneous exchange of cations and anions is often performed in mixed beds, which contain a mixture of anion- and cation-exchange resins, or passing the solution through several different ion-exchange materials. (wikipedia.org)
NEW YORK , April 20, 2015 /PRNewswire/ -- This report analyzes the worldwide markets for Ion Exchange Resins in US$ Thousands by the following End-Use Segments: Chemicals, Drinking & Wastewater Treatment, Food & Beverage, Power Generation, and Others. (prnewswire.com)
5.2 This test method is intended for mixtures of ion-exchange materials that have salt-splitting capacity as measured by Test Method E of Test Methods and Practices D2187 for cation-exchange resins, and Test Method H for anion-exchange resins. (astm.org)
In the case of cation-exchange resins, these are styrene-based polymers with sulfonic acid functional groups. (astm.org)
German speciality chemicals company LANXESS has announced a new method of recovering lithium using ion exchange resins. (aquatechtrade.com)
The organisation's monodisperse resins can be used to remove divalent ions, namely calcium, magnesium, strontium and barium, in a concentration range of 1-100 mg/l from brine with a typical lithium content of 10 g/l. (aquatechtrade.com)
complexation technique is used to prepare complexes of drug where ion exchange resins such as Indion ® 214, Indion ® 234 and Indion ® 414 were used with a drug-resin ratio of 1:0.5, 1:1, 1:2. (sld.cu)
A number of methods have been reported for masking the bitter taste, such as use of ion-exchange resins, 1 use of inclusion complexes with cyclodextrins, 2 viscosity modifications 3 melt granulation, 4 microencapsulation techniques like spray-drying, 5 spray-congealing, 6 coacervation 7 and solvent evaporation method. (sld.cu)
8 Ion exchange resins are solid and suitably insolubilized high molecular weight polyelectrolytes that can exchange their mobile ions of equal charge with the surrounding medium reversibly. (sld.cu)
As a previous study showed the ion-exchanging resins could be used in Saclay for the treatment of radioactive effluents, the author reports a study which aimed at investigating to which extent thus obtained results could be extrapolated to the case of higher industrial columns. (osti.gov)
ENGLISH ABSTRACT: Adsorption tests were conducted with four different ion-exchange resins to determine the equilibrium adsorption of a range of precious and base metals. (sun.ac.za)
The ion exchange resins have to be restored on a routine basis to regenerate the capacity once it has been exhausted. (danativara.com)
Size exclusion chromatography and ion-exchange resins are used to separate sucrose from fructose and dextrose in the sugar industry and to separate lactose, salts, and non-protein nitrogen in the dairy industry. (eurodia.com)
size exclusion chromatography and ion-exchange resins are used to separate dextrose or maltose from molecules with a high degree of polymerization (sucrose, amino acids, salts). (eurodia.com)
They are widely used as ion-exchange resins to remove ions such as potassium, calcium, and sodium from solutions in technical or medical applications. (mantablog.nl)
This analysis also holds for most anion exchange resins. (mantablog.nl)
In the middle 1940's, ion exchange resins were developed based on the copolymerization of styrene cross-linked with divinylbenzene. (idreco.com)
These resins were very stable and had much greater exchange capacities than their predecessors. (idreco.com)
Polystyrene-divinylbenzene resins are still used in the majority of ion exchange applications. (idreco.com)

In a water softener, ion exchange occurs as the water runs through a bed of small plastic resin beads which are saturated with sodium ions. (danativara.com)

Ion exchange usually describes a process of purification of aqueous solutions using solid polymeric ion-exchange resin. (wikipedia.org)
The rate of metal ion uptake by PHBRF-II terpolymeric resin was higher than that of PHBRF-I. Effect of pH and electrolytes under specified condition were also studied. (hindawi.com)
It is not necessary that the cation-exchanging resin be in the hydrogen form and the anion-exchanging resin be in the hydroxide form for this test method. (astm.org)
A new method of recovering lithium using an ion-exchange resin could help reduce the economic costs and environmental impact of brine. (aquatechtrade.com)
The grain capacity also makes it a perfect fit for areas with very hard water since it can remove a large amount of calcium and magnesium ions at once before the resin needs to be regenerated . (waterdefense.org)
The experimental results obtained indicate a possible process route for the separation of precious metals with ion-exchange resin. (sun.ac.za)
In batch adsorption tests the counter ion is not removed from the resin. (sun.ac.za)
The resin capacity for a specific ion concentration could therefore not be determined. (sun.ac.za)
As the water, containing calcium and magnesium ions, flows past the resin beads, calcium and magnesium ions "stick" to the ion exchange resin, liberating the sodium ions, which then go into solution. (danativara.com)
Eventually, the resin beads contain nothing but calcium and magnesium ions and no sodium. (danativara.com)
Chromatography, ion exchange, and adsorption are similar technologies that involve specific uses of porous, calibrated, and functionalized polymer-resin beads. (eurodia.com)
Ion exchange is an extremely robust and adaptable technique allowing the extraction from a liquid of a charged molecule, which is then exchanged for an ion initially bound to the resin. (eurodia.com)
What is DI (Deionizing or Ion Exchange) resin? (mantablog.nl)
An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange. (mantablog.nl)
There are multiple types of ion-exchange resin. (mantablog.nl)
One is a "anion" exchange resin. (mantablog.nl)
The other type of resin is a "cation" exchange resin. (mantablog.nl)
As an example of how a resin works look at the cation filter media out there which claim to remove ammonia from the aquarium by exchange with sodium in a resin bed. (mantablog.nl)
While that is true, one must understand that the resin is "non-selective" and will "exchange" for every cation in the water, not just ammonium. (mantablog.nl)
The exchange will take place until the ratio of each cation is the same in both the water and the resin. (mantablog.nl)
Capacity is defined as the amount of exchangeable ions a unit quantity of resin will remove from a solution. (idreco.com)
Soon, an anion exchange resin (a condensation product of polyamines and formaldehyde) was developed. (idreco.com)
In addition to a plastic matrix, ion exchange resin contains ionizable functional groups. (idreco.com)
Ion exchange, in which synthetic resin is used as a filter material, is performed by processing water containing (Ca+) and (Mg+) ions, which cause hardness, through a sodium-based cationic resin. (aosmithme.com)
During this process the Ca+ and Mg+ ions replace the Sodium (Na+) ions attached to the resin, completing the water softening procedure. (aosmithme.com)
When the surface of resin grains are completely covered, the grains must be freed of ions causing hardness and charged with sodium ions again to regain hardness. (aosmithme.com)
It is ensured that positively charged ions replace the hydrogen ions and water is processed through the anionic resin. (aosmithme.com)

There are also amphoteric exchangers that are able to exchange both cations and anions simultaneously. (wikipedia.org)
This is accomplished by exchanging divalent cations (such as calcium Ca2+ and magnesium Mg2+) with highly soluble monovalent cations (e.g. (wikipedia.org)
In a saline solution, dissolved ions such as sodium(+) and chloride(-) migrate to the opposite electrodes passing through selected membranes that either allow cations or anions to pass through(not both). (fujifilm.com)
Ion exchange with divalent cations (Cu, Mn, Zn, Ca and Sr) has also been shown to be possible, with phases showing altered XRD patterns and decomposition products. (bham.ac.uk)
It's possible for water to be softened via the ion exchange process when divalent cations like magnesium and calcium are exchanged with monovalent cations that are highly soluble. (sensorex.com)
Cations are positively charged ions such as ammonium. (mantablog.nl)

Ion exchangers can have binding preferences for certain ions or classes of ions, depending on the physical properties and chemical structure of both the ion exchanger and ion. (wikipedia.org)
Common examples of ions that can bind to ion exchangers are: H+ (proton) and OH− (hydroxide). (wikipedia.org)
i.e. polymeric or inorganic insoluble ion exchangers are widely used for water softening, water purification, water decontamination, etc. (wikipedia.org)
The main advantage of zwitterionic ion-exchangers is the possibility of their use for the simultaneous separation of catlons and anlons and the use of diluted elucnts, which significantly increases the sensltlvlty of detection and can contribute to the increased efficlency. (dcu.ie)
dechlorinatory, and ion exchangers. (danativara.com)
Ion exchangers transfer ions from the raw water to solid material so that undesirable ions do not precipitate and form scale on critical heat transfer surfaces. (danativara.com)
Water softeners use ion exchangers to remove ions like magnesium and silica and replace them with sodium. (danativara.com)
Ion exchangers exchange one ion for another, hold it temporarily, and then release it to a regenerant solution. (idreco.com)
these types of units are called mix-bed ion exchangers. (aosmithme.com)

It's possible to use ion exchange to get rid of hardness in water by exchanging magnesium and calcium ions that create hardness for sodium ions. (sensorex.com)
Water softeners are primarily used to remove calcium and magnesium ions from the water such as boiler makeup water. (danativara.com)
Hardness ions, such as calcium and magnesium, must be removed from the water supply before it can be used as boiler feedwater. (idreco.com)
For example, in a sodium zeolite softener, scale-forming calcium and magnesium ions are replaced with sodium ions. (idreco.com)
Water softening devices are used to filter the calcium (Ca+) and magnesium (Mg+) ions that cause hardness from water. (aosmithme.com)

The NHE6 protein helps exchange positively charged atoms (ions) of sodium (Na+) with hydrogen ions (H+) across the endosomal membrane. (medlineplus.gov)

In domestic filtration systems ion exchange is one of the alternatives for water softening in households along with reverse osmosis (RO) membranes. (wikipedia.org)
Compared to RO membranes, ion exchange requires repetitive regeneration when inlet water is hard (has high mineral content). (wikipedia.org)
Fundamental understanding of ion sorption and transport in ion-exchange polymers is critical for development of high performance membranes. (confex.com)
Experimental techniques for characterizing ion sorption and transport in charged membranes have been established, however, a simple theoretical framework to describe the experimental findings is currently lacking. (confex.com)
In this work, a model to predict ion sorption and permeability in ion-exchange membranes has been formulated and tested against experimental data. (confex.com)
Quantitative description of ion sorption in charged membranes equilibrated in salt solutions typically relies on a rigorous thermodynamic formalism (i.e. (confex.com)
In this work, Manning's counter-ion condensation theory, originally developed for polyelectrolytes, was extended to ion-exchange membranes and used to estimate membrane ion activity coefficients. (confex.com)
The results of the model were compared to ion sorption data obtained experimentally for various commercially available ion-exchange membranes. (confex.com)
However, material innovation with regard to the ion-exchange membranes used in MCDI has been neglected. (aiche.org)
The ion-exchange membranes for ED tend to be thick as they serve as a separator in addition to an ion-conducting electrolyte in electrodialysis. (aiche.org)
In MCDI, the ion-exchange membranes do not serve as separator and they are employed to prevent co-ion adsorption to the porous carbon electrodes. (aiche.org)
This talk will demonstrate how thinner ion-exchange membranes with higher ionic conductivity substantially reduces the energy footprint for MCDI - approximately 35 kT per ion removed with ED membranes to 15 kT per ion removed with new ion-exchange membranes. (aiche.org)
Additionally, the new ion-exchange membranes displayed a significantly higher Coulombic efficiency. (aiche.org)
The talk will showcase how ex-situ properties of ion-exchange membranes, such as ionic conductivity, thickness, and permselectivity, are instrumental for lowering the energy footprint of MCDI. (aiche.org)
Fabrication of high-conductivity ion exchange membranes (IEMs) is crucial to improve the performance of non-aqueous vanadium redox flow batteries (NAVRFBs). (rsc.org)
In the present work, anion exchange membranes with high-conductivity were fabricated by aligning ion channels of the polymer electrolyte impregnated in porous polytetrafluoroethylene (PTFE) under electric fields. (rsc.org)

Along with absorption and adsorption, ion exchange is a form of sorption. (wikipedia.org)
This session is devoted to all fundamental aspects and applications of adsorption and ion exchange. (aiche.org)
As such, the papers presented in this session are expected to be of broad appeal to the adsorption and ion-exchange area and of exceptional quality. (aiche.org)
From the ion-exchange characteristics determined, a selective adsorption sequence is proposed for the separation of precious and base metals. (sun.ac.za)
As such, the adsorption models are only valid for the initial part of the ion-exchange process. (sun.ac.za)
The adsorption of cesium ions in aqueous solution by TNS was investigated in this study. (iwaponline.com)
The main adsorption mechanism of TNS to cesium ion is ion exchange. (iwaponline.com)
The adsorption mechanism was the ion exchange between the interlayer Na (I) of TNS and Cs (I). (iwaponline.com)
Among them, the inorganic ion exchange adsorbent has better mechanical properties, the ion exchange position is more uniform, and the adsorption selectivity for metal ions is high. (iwaponline.com)
An original process based on a combination of technologies (membrane filtration, electrodialysis, ion exchange, adsorption) to produce second-generation sugars. (eurodia.com)

In such cases the hydrogen ion as well as the chloride ion is determined in the second sodium nitrate elution described in Test Method I of Test Methods and Practices D2187 , and the calculations given herein are made using the titration values so determined. (astm.org)
5.3 The test method as written assumes that the cation exchange material has been regenerated to the hydrogen form with acid and the anion exchange material has been regenerated with alkali to the hydroxide or free-base form. (astm.org)
Monovalent ion exchange (with Na, K, Rb, Cs and Ag) gave complete and facile exchange of the host's hydrogen ions and gave crystalline products. (bham.ac.uk)
For well water supply, Springwell WSSS4 is the best ion exchange water softener and filter combo to remove hard water minerals as well as iron, manganese and hydrogen sulfide contaminants from the water. (waterdefense.org)
It substitutes hydrogen ions (H + ) for sodium, calcium etc. and substitutes hydroxyl ions (OH - ) for sulfates, chlorides, etc. (mantablog.nl)
The development of a sulfonated coal cation exchange medium, referred to as carbonaceous zeolite, extended the application of ion exchange to hydrogen cycle operation, allowing for the reduction of alkalinity as well as hardness. (idreco.com)
By controlling the amount of hydrogen ions, the NHE6 protein helps regulate the relative acidity (pH) inside endosomes, which is important for the recycling function of these compartments. (medlineplus.gov)

Industrial and analytical ion-exchange chromatography is another area to be mentioned. (wikipedia.org)
Ion-exchange chromatography is a chromatographical method that is widely used for chemical analysis and separation of ions. (wikipedia.org)
Prepacked columns for high-resolution purification of proteins and other biomolecules by ion exchange chromatography. (fishersci.com)
Over recent years development of ion chromatography (IC) has focused on new phase technologies to s~multaneously increase efficlency and vary selectivity. (dcu.ie)
Recombinant glycoprotein products were purified and characterized by amino acid sequencing and carbohydrate structural analysis using matrix-assisted laser desorption ionization time of flight mass spectrometry, high-pH anion-exchange chromatography with pulsed amperometric detection, and methylation analysis. (nih.gov)

Characterize effects of solution pH, ionic strength, background ions (e.g. (serdp-estcp.org)

Thus, a more durable, less soluble, and more translucent material was developed 33 , with chemical bonding to the dental substrate by the bonding of calcium ions to carboxylic radicals existing in the enamel, dentin and cementum. (bvsalud.org)

In certain applications a cation exchange material in the potassium, ammonium, or other monovalent form may be encountered. (astm.org)
A thermodynamically favoured phase with two waters of crystallisation was observed for all monovalent cation exchanges. (bham.ac.uk)

At this point, softening no longer occurs and hardness ions (Ca and Mg) begin to leak through the bed. (danativara.com)

An electrical potential is used to move salts through ion exchange membrane, leaving fresh water behind as product water. (fujifilm.com)
ED and EDR are processes in which ions move through a semi-permeable membrane under the influence of an electrical current. (fujifilm.com)
Good agreement was found between the predicted values for membrane co-ion concentration and those obtained experimentally when solution and membrane non-idealities were included in the model. (confex.com)
Ion diffusion coefficients in the membrane were estimated using the Mackie and Meares model. (confex.com)
The overall goal of this proof-of-concept project is to develop ion exchange membrane (IEM)- and ion exchange fiber (IEF)-based strategies for passive sampling of chemically-diverse per- and polyfluoroalkyl substances (PFAS) at Department of Defense (DoD) facilities. (serdp-estcp.org)
The integration of an ion exchanging membrane directly into the polymethylmethacrylate (PMMA) substrates of the EOP enables the separation of the gas production due to electrolysis from the pumping channel. (jku.at)

In an ion exchange system, undesirable ions in the water supply are replaced with more acceptable ions. (idreco.com)

Polyatomic inorganic ions like SO2− 4 and PO3− 4. (wikipedia.org)

can be used to probe the internal ions of quadruplexes in We have chosen to study the bimolecular foldback aqueous solution. (lu.se)

The interaction between all the input parameters, e.g. the interaction of gold and chloride ions, was modelled by specifying the product of the gold and the chloride concentrations as an input variable. (sun.ac.za)

More detailed information of completely dehydrated alkali ions (usually K+ or Na+) about the internal ions can be obtained by measuring the coordinated to the buried carbonyl oxygens of the nucleotide spin relaxation rate(s) over a wide range of resonance bases. (lu.se)

Accordingly, increasing Ag+concentration in zeolite and also zeolite concentration in the paint formulation for single Ag+ ion-exchanged zeolites lead to higher ∆E values and ruined visual inspection of these coatings. (mendeley.com)
In 1905, Gans, a German chemist, used synthetic aluminosilicate materials known as zeolites in the first ion exchange water softeners. (idreco.com)

Ion exchange is a reversible interchange of one kind of ion present in an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or making water demineralised, the purification of chemicals and separation of substances. (wikipedia.org)
If not removed, these ions can be the basis for forming insoluble compounds that will precipitate in boiler systems. (danativara.com)

LANXESS said the use of ion exchange has a number of advantages over the traditional methods of final polishing for lithium brine due to the removal of calcium polyvalent ions, including increased efficiency, low leakage, high flow rates due to exchange kinetics. (aquatechtrade.com)
Such magnetic relaxation dispersion (MRD1) structural polymorphism of quadruplexes ( 2, 5, 6 ), but little measurements have been used to study ion binding (via 23Na is known about the energetics and kinetics of ion binding. (lu.se)

Also, quoting Farley and Castleman's Observation of Gas-Phase Anionic Bismuth Zintl Ions J. Am. Chem. (stackexchange.com)
Hence, anionic Zintl ions of these species are particularly intriguing due to the inability of current theories to account for them and lack of other corresponding metallic compounds with which they may be compared. (stackexchange.com)
Units performing the deionization procedure are called cationic units in the removal of cationic ions, and anionic units in the removal of anionic ions. (aosmithme.com)

The anion-exchanging materials in this class are styrene-based materials with quaternary ammonium functional groups. (astm.org)
These columns are USP L14 listed and contain silica-based quaternary ammonium for anion-exchange separations. (separationmethods.com)

The MRD data indicate that both quadruplexes contain Na+ ions between the T4 loops and the terminal G-quartets and that these ions have one water ligand. (lu.se)
The only stable binding site of a fifth ligand at the active-site zinc ion is opposite to the normal substrate site, in a narrow cavity behind the zinc ion. (lu.se)
Ligand exchange at the zinc ion probably proceeds by a dissociative mechanism. (lu.se)

Zwittenonic ioncxchangcrs, where positlve and negatlve charges are located in close proxlmlty, exhibit potentla1 for selectivity optlm~sationin IC due to vanation of the ratio of electrostatic attract~onlrepulsion forces between analyte ions and ion-exchange groups. (dcu.ie)

For high-pressure boiler feedwater systems and many process systems, nearly complete removal of all ions, including carbon dioxide and silica, is required. (idreco.com)

Ion exchange is a method widely used in household filters to produce soft water for the benefit of laundry detergents, soaps, and water heaters. (wikipedia.org)
Another application for ion exchange in domestic water treatment is the removal of nitrate and natural organic matter. (wikipedia.org)
BASF SEEichrom Technologies, Inc.Evoqua Water TechnologiesFinex OyIon Exchange ( India ) Ltd. (prnewswire.com)
At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and generation of energy from waste. (zoominfo.com)
Ion Exchange Services - India's No 1 Water treatment services company! (zoominfo.com)
Mr. Dinesh Sadasivan Mr. Dinesh Sadasivan is ED and CEO of Ion Exchange Services Ltd , pioneers in the field of Total Water and Environment Managem. (zoominfo.com)
Nalco Water offers a complete range of industrial water softeners and ion exchange systems. (ecolab.com)
This is the first water filtration system in the State of Mississippi to utilize an ion exchange filtration system. (gmcnetwork.com)
Ion exchange water softeners are the most effective water treatment devices for softening hard water. (waterdefense.org)
The best ion exchange water softener for city water supply is the Springwell SS + water softener system which comes with 32,000 grain capacity, 11 GPM flow rate and 1 - 7 bathroom size. (waterdefense.org)
Springwell SS+ is one of the highest rated ion exchange water softeners that offers 20 GPM high flow rate and 80,000 grain capacity to cater for more than 7+ bathrooms, which makes it ideal choice for very large homes or even small apartment buildings. (waterdefense.org)
The Springwell WSSS4 is the best choice if you're looking for a well water filtration system and ion-exchange water softener combo. (waterdefense.org)
Among the most effective water treatments that can be used to rid water of contaminants is the ion exchange process. (sensorex.com)
The exchanged substance and contaminant will both need to consist of the same electrical charge and will need to dissolve in water for the process to work as intended. (sensorex.com)
An example of the ion exchange process involves another process that's known as water softening . (sensorex.com)
However, ion exchange can also be used for the removal of toxic metals from water. (sensorex.com)
Because of the effectiveness of the ion exchange method, this water purification technique has many industrial applications, which include everything from metal finishing applications to food and beverage production. (sensorex.com)
One standard ion exchange application involves preparing high-purity water that can be used for nuclear, power engineering, and electronic industries. (sensorex.com)
Many household filters are based on the ion exchange process and work by producing soft water. (sensorex.com)
The ion exchange process is also regularly used for domestic water treatment via the removal of natural organic matter and nitrate from water. (sensorex.com)
While the ion exchange process is common for water treatment purposes, it also has other industrial applications that don't necessarily involve water treatment. (sensorex.com)
Before using a water treatment system that's outfitted with ion exchange technology, it's common to test the makeup of water to determine how much treatment is necessary. (sensorex.com)
This type of water can cause scale buildup in piping and other industrial equipment, which is when the ion exchange process can be used to soften the water. (sensorex.com)
The readings you obtain can then inform the remaining ion exchange and water treatment process that occurs. (sensorex.com)
A water softener eliminates this problem by replacing precipitate-forming ions with sodium ions. (danativara.com)
Ion Exchange's sustainability strategy is based on the purpose of our business i.e. to conserve the planet's most precious resources through total water and environment management solutions. (ionexchangeglobal.com)
Limited water consumption, due to the special care taken in designing our ion-exchange columns. (eurodia.com)
All natural waters contain, in various concentrations, dissolved salts which dissociate in water to form charged ions. (idreco.com)
Ion exchange systems are used for efficient removal of dissolved ions from water. (idreco.com)
The water softening process is based on the ion exchange principle, which falls into the chemical treatment part. (aosmithme.com)
The deionization procedure varies based on numerous factors, such as water quality and economy, ion exchange type and regeneration method. (aosmithme.com)
Anion Exchanges of Water-Stable Perovskite Nanocrystals in the Pure Water Phase and Applications in Detecting Halide Ions via a Smartphone-Based Sensing Platform. (bvsalud.org)
This laboratory technician was processing water samples, while standing in front of a bank of ion-exchange columns, which she was using to separate out their strontium-90 content. (cdc.gov)

Citation: 'cation-exchange polymer' in IUPAC Compendium of Chemical Terminology, 3rd ed. (iupac.org)
Previous studies have often overlooked the importance of including ion activity coefficients in such treatments, mainly because no reliable models or experimental techniques were available for obtaining these values in the polymer phase. (confex.com)
It was observed that the ion channels of the polymer electrolyte were uniformly orientated in the atomic-force microscopy image. (rsc.org)

The purification processes of this type play an important role to create the ultrapure lithium salts needed in the production of lithium batteries and rechargeable lithium-ion batteries," said Steinhilber. (aquatechtrade.com)

In recent years, TNS has attracted wide attention because of its simplicity in synthesis and high efficiency in ion exchange. (iwaponline.com)

ABSTRACT: The structural stability of guanine quadruplexes depends critically on an unusual configuration of dehydrated Na+ or K+ ions, closely spaced along the central axis of the quadruplex. (lu.se)

The test method will determine the amount of anion-exchange material of any functionality present in the mixture. (astm.org)
1.1 This test method determines the ratio between the equivalents of anion-exchange capacity and the equivalents of cation-exchange capacity present in a physical mixture of salt-splitting anion-exchange material and salt-splitting cation-exchange material. (astm.org)

In an electrolyte the charge carriers are ions, so there is no appreciable flow of free electrons. (stackexchange.com)
This chemical reaction converts the ion-based current in the electrolyte to electron-based current in the metal. (stackexchange.com)

The trapping of ions occurs along with the accompanying release of other ions, and thus the process is called ion exchange. (mantablog.nl)

The silver and zinc exchanged zeolite A samples prepared from kaolin were introduced as filler into the paint matrix during the electrostatic powder coating process. (mendeley.com)
For this purpose, ∆E values of all prepared coatings for silver and zinc ion-exchanged zeolite samples were measured. (mendeley.com)
The parametrization is used in molecular dynamics simulations and molecular mechanical energy minimisations of alcohol dehydrogenase with a four- or five-coordinate catalytic zinc ion. (lu.se)
The active-site zinc ion seems to prefer four -coordination over five-coordination by at least 36 kJ/mole. (lu.se)

Ion sorption coefficients were estimated by the model presented in this work. (confex.com)

More precisely, the term encompasses a large variety of processes where ions are exchanged between two electrolytes. (wikipedia.org)
Ion-exchange processes are used to separate and purify metals, including separating uranium from plutonium and the other actinides, including thorium, neptunium, and americium. (wikipedia.org)
Using ion exchange processes for calcium removal cuts both the time and expenditure needed by a significant margin," said Dirk Steinhilber, technical marketing manager at LANXESS. (aquatechtrade.com)

Ion exchange is a reversible process, and the ion exchanger can be regenerated or loaded with desirable ions by washing with an excess of these ions. (wikipedia.org)
Here we reveal an interfacial exchange bias introduced by a single-step, low-energy ion implantation process in a single layer FeRh thin film. (ornl.gov)
This article provides you with a more detailed explanation on the ion exchange process and the many industrial applications it's used for. (sensorex.com)
The ion exchange process is commonly used throughout numerous industrial applications because of the many benefits that this process provides. (sensorex.com)
Ion Exchange process and policies promote fair selection of suppliers and are aimed at improving economic inclusion throughout the supply chain. (ionexchangeglobal.com)
Although aluminosilicate materials are rarely used today, the term "zeolite softener" is commonly used to describe any cation exchange process. (idreco.com)

ion-exchange study was carried out with Cu 2+ , Zn 2+ , Ni 2+ , Co 2+ , Pb 2+ & Cd 2+ by batch equilibrium method. (hindawi.com)
In both quadruplexes, the stem ions have residence times of 0.6-1.0 ms at 27 °C. The equilibrium constant for Na+ f K+ exchange is 4 for both loop and stem sites in Q3, in agreement with previous 1H NMR findings. (lu.se)

Antibacterial electrostatic powder paint coating with intended esthetic criteria was specially formulated for industrial applications using single (Ag+) and binary exchanged (Ag+ and Zn2+) zeolite A, which was prepared from local kaolin resources. (mendeley.com)
The antibacterial thermosetting powder paint was preparedinitially in a dry form by mixing metal exchanged zeolite with the powder paint raw materials. (mendeley.com)
Upon comparing the paint coatings that contain only Ag+ ion (A1-C and A3-C), it was seen that the ∆E value for A3-C was around +1.53 taking this particular zeolite formulation (0.8 wt. (mendeley.com)
E values of binary ion-exchanged samples were observed to be close to zero with much improved coloring qualities similar to the sample that includes no zeolite. (mendeley.com)
It was seen that addition of Zn2+ ions besides Ag+ ions into zeolite framework enhanced the visual appearance of the coatings (A2-C and A4-C). (mendeley.com)
The synthetic zeolite exchange material was soon replaced by a naturally occurring material called Greensand. (idreco.com)

However, most applied charge carriers in non-aqueous media migrate quite slowly, with poor ion conductivity, compared with charge carriers in aqueous media. (rsc.org)

Anatomy13

Organisms12

Chemicals and Drugs119

Analytical, Diagnostic and Therapeutic Techniques and Equipment53

Phenomena and Processes53

Disciplines and Occupations4

Anthropology, Education, Sociology and Social Phenomena1

Technology, Industry, Agriculture2

Information Science5

Health Care4

Negatively charged5

Resins20

Saturated with sodium ions1

Resin27

Cations6

Exchangers9

Magnesium5

Positively1

Membranes16

Adsorption10

Hydrogen7

Chromatography5

Ionic1

Calcium ions1

Monovalent2

Hardness1

Membrane6

Undesirable ions1

Inorganic1

Aqueous solution1

Chloride1

Alkali1

Zeolites2

Insoluble2

Kinetics2

Anionic3

Ammonium2

Ligand3

Selectivity1

Silica1

Water33

Polymer3

Salts1

Efficiency1

Abstract1

Anion-exchange material2

Electrolyte2

Occurs1

Zinc4

Sorption1

Processes3

Process6

Equilibrium2

Zeolite6

Charge carriers1