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adsorption
adsorption
adsorption The physical binding of a particle of a particular substance to the surface of another by adhesion or penetration. In soils, it is the attachment of an ion, molecule, or compound to the charged surface of a particle, usually of
clay or
humus, where replacement or exchange may take place. Ions carrying positive charges (e.g. those of calcium, magnesium, sodium, and potassium) become attached to, or adsorbed by, negatively charged surfaces (e.g. those of clay or humus).
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Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments
Magazine article from: Journal of Surfactants and Detergents; 3/1/2009; ; 700+ words
; Abstract Surfactants enhance adsorption of an aroma chemical on cotton...fiber substrate result in higher adsorption of surfactant/aroma chemical...aroma chemical alone, with higher adsorption for cationic systems than for anionic...
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Adsorption of Anionic-Cationic Surfactant Mixtures on Metal oxide Surfaces
Magazine article from: Journal of Surfactants and Detergents; 12/1/2007; ; 700+ words
; ...Abstract This research evaluates the adsorption of anionic and cationic surfactant mixtures...surfactant mixture below the CMC, the adsorption of anionic surfactant was found to substantially...plateau level of anionic surfactant adsorption (i.e., at or above the CMC) did...
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Adsorption of Aroma Chemicals on Cotton Fabric from Aqueous Systems
Magazine article from: Journal of Surfactants and Detergents; 10/1/2005; ; 700+ words
; ABSTRACT: The adsorption of aroma chemicals on cotton fabric...solubility, and fiber morphology. The adsorption increased with increasing surfactant...in surfactant concentration. The adsorption also was found to be highly dependent...
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Adsorption of small drug particles at the surface of large excipients
Magazine article from: Pharmaceutical Technology Europe; 1/1/2006; ; 700+ words
; Applications of adsorption of small drug particles at the surface...and different factors affecting adsorption process were discussed and summarized...rate were exhibited in this article. Adsorption of small drug particles on the surface...
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Adsorption of iodine on nylon-6.
Magazine article from: Trends in Biomaterials and Artificial Organs; 7/1/2002; ; 700+ words
; ...activity has been imparted to nylon-6 by adsorption of iodine. Iodine adsorption has been carried out by two ways: a) dipping...single layer on the surface of fibers. Iodine adsorption from solution in acetone does not follow Langmuir...
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Adsorption characteristics of tetracycline by two soils: assessing role of soil organic matter.(Report)
Magazine article from: Australian Journal of Soil Research; 5/1/2009; ; 700+ words
; ...frequent waste discharge. Investigation of adsorption characteristics of antibiotics in soils...important antibiotics, tetracycline adsorption in soil would be more complicated than...investigations had shown that there is a high adsorption of tetracycline by reference soil components...
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Adsorption kinetic, thermodynamic, and desorption studies of isopropyl alcohol vapor by oxidized single-walled carbon nanotubes.(TECHNICAL PAPER)(Technical report)
Magazine article from: Journal of the Air & Waste Management Association; 8/1/2009; ; 700+ words
; ...solution and used as adsorbents to study adsorption kinetics, thermodynamics, and desorption...IPA) vapor in an airstream. The adsorption capacity of IPA decreased with temperature...indicating an exothermic nature of the adsorption process, and slightly decreased with...
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Adsorption of Lead(II) from Water by Carbon Nanotubes: Equilibrium, Kinetics, and Thermodynamics
Magazine article from: Water Environment Research; 6/1/2009; ; 700+ words
; ABSTRACT: Adsorption of lead(II) from water on carbon nanotubes (CNTs) was investigated using a series of batch adsorption experiments. The adsorption rate was studied experimentally at various temperatures...
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Phosphate adsorption at variable charge soil/water interfaces as influenced by ionic strength.(Report)
Magazine article from: Australian Journal of Soil Research; 8/1/2009; ; 700+ words
; ...Arai and Sparks 2007). The adsorption of phosphate by soils can affect...Such soils show appreciable adsorption and fixation capacity for phosphate. Over the past few decades, the adsorption and desorption of P in soils has...
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The Adsorption of Zinc Dialkyldithiophosphates on Partially Stabilized Zirconia from Hydrocarbon Solution©
Magazine article from: Tribology & Lubrication Technology; 7/1/2006; ; 700+ words
; ...Kinetics, isotherms and enthalpy of adsorption of zinc di-n-alkyl (di-n...temperatures 25C and 35C were done. The adsorption enthalpy has been determined using a Montcalcalorimeter. ZDTP adsorption isotherms are Langmuir-like. The...
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adsorption
Book article from: The Columbia Encyclopedia, Sixth Edition
adsorption adhesion of the molecules of liquids...and in the preparation of ammonia. Adsorption occurs also in solutions; colloidal...dye held to the surface of cloth by adsorption permeates the fibers so that when the...
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adsorption complex
Book article from: A Dictionary of Ecology
adsorption complex Various materials of the soil, mainly clay and humus and to a lesser degree other particles, that are capable of adsorbing ions and molecules.
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sodium adsorption ratio
Book article from: A Dictionary of Ecology
sodium adsorption ratio ( SAR ) The tendency for sodium cations to be adsorbed at cation-exchange sites in soil at the expense of other cations...
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sodium-adsorption ratio
Book article from: A Dictionary of Earth Sciences
sodium-adsorption ratio (SAR) Describes the tendency for sodium cations to be adsorbed at cation-exchange sites in soil at the expense of other...
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pollution control
Book article from: The Oxford Companion to the Earth
...can be adsorbed to the surface (see adsorption ), absorbed into the surface, or undergo...exchange with ions in the mineral. Adsorption results from mineral surfaces having...absorption , not to be confused with adsorption. Dissolved ions can also exchange with...
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