Cationic surfactants
Adsorption Properties of Gemini and Monomeric Cationic Surfactants on Sandstone and Silica Nanoparticles
... years, surfactants and nano composites have been used to alter wettability of re- servoirs for augmented injection to improve oil recovery [14] [15] [16] ...the cationic surfactant adsorbed to the muscovite ...
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Modification of softwood kraft pulp with carboxymethyl cellulose and cationic surfactants
... Cationic surfactants can be easily attached to the surface of CMC-modifi ed anionic fi bers. Surprisingly, this treat- ment can substantially improve the internal strength of the prepared handsheets. Strong ...
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Removal of Cationic Surfactants from Water by Adsorption on Attapulgite
... anionic, cationic, non-ionic and amphoteric ones [1] [2]. The anionic surfactants are widely used as detergents and they have the greater consumption compared to the ...The cationic ...
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Corrosion Inhibition of Carbon Steel in 0.5 M HCl Solution Using Cationic Surfactants
... of cationic surfactants, namely: cetyl trimethyl ammonium bromide: CTAB and dodecyl trimethyl ammonium chloride: DTAC, have been used as corrosion inhibitors for C-steel in ...tested surfactants were ...
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Role of Chain Length and Type on the Adsorption Behavior of Cationic Surfactants and the Silica Floatability
... of surfactants at the representative initial surfactant concentration ...different cationic surfactants was in the order of DDAC > BTAC > ...of cationic surfactants plays a ...
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Anionic and Cationic Surfactants in Ammonia Gas-Mediated Synthesis of β-Ni(OH)2 and NiO Nanostructures
... anionic and cationic surfactants for controlling size, shape, and crystallinity of the product. The comparison of typical XRD patterns (10° < 2θ < 80°) of the samples prepared using sodium ...
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Inhibition Effect of Some Cationic Surfactants on the Corrosion of Carbon Steel in Sulphuric Acid Solutions: Surface and Structural Properties
... the cationic surfactants compounds provides a good protection to steel against pitting corrosion in chloride containing ...of surfactants packing is more than ...the surfactants has rod or ...
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Silver Nanoparticles-Based Nano-drop Spectrophotometric Determination of Cationic Surfactants Coupled with Hydrophobic Interaction; An Application to Pharmaceuticals and Environmental
... different cationic surfactants The sensitivity of the proposed work was investigated for the spectrophotometric determination of CSs, which were evaluated ...of cationic surfactants, the Ag ...
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Application of Highly Surface Active Cationic Surfactants Based on Rosin as Corrosion Inhibitor for Tubing Steel During Acidization of Petroleum Oil and Gas Wells
... prepared surfactants at water/air interface. The results showed that cationic derivative inhibited corrosion of carbon steel and the extent of its inhibition was concentration ...that cationic acted ...
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Spectral Studies of Eriochrome Black T in Cationic Surfactants
... Many papers describing dye–surfactant interactions have been reported, allowing us to understand the mechanisms of dye interactions with surfactants above the CMC [4]. However, there is not much information ...
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A physical model for the size-dependent cellular uptake of nanoparticles modified with cationic surfactants
... This result clearly showed that the cellular uptake of DMAB-coated nanoparticles was much higher than that of PVA-coated nanoparticles, which confirmed that DMAB has the[r] ...
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Synthesis of Some Novel Cationic Surfactants and Evaluation of Their Performance as Corrosion Inhibitors for X-65 type Carbon Steel under H2S Environment
... The critical micelle concentration (CMC) is the point in concentration at which it becomes thermodynamically favorable for surfactant molecules in solution to form aggregates (micelles) in order to minimize interaction ...
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Determination trace amounts of cationic surfactants cethyle tri methyl ammonium bromide (CTAB) by method of spectrophotometry extraction
... extraction cationic surfactant (CTAB), is forming ion pairs between cationic ion of this surfactant and an anionic color, in this research orange (II) anionic color among mentioned colors by having highest ...
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Prediction of Dermal Permeability Coefficient of Nevirapine—Effect of Cosolvents, Anionic, Nonionic and Cationic Surfactants
... and surfactants (polysorbate 20, polysorbate 80, sodium lauryl sulfate, sodium cholate and cetrimide) on the dermal permeability coefficient of nevirapine by utilizing established and recognized mathematical model ...
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A Simple and Rapid Method for the Detection of Non Ionic Surfactants
... Non-ionic surfactants do not produce ions in aqueous solutions, and are thus compatible with other types of ...of cationic surfactants, Beer’s law is valid at low concentrations, when ...
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On the Interactions of Bovine Serum Albumin with Some Surfactants: New Insights from conductivity Studies
... with surfactants, but not enough to understand the role of the hydrophobic and electrostatic interactions between BSA and ...selected surfactants by the conductivity measurements. The surfactants ...
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Chemical Induced Wettability Alteration of Carbonate Reservoir Rocks
... and cationic surfactants, Triton X-100 as a non-ionic surfactant has higher potential for wettability alteration of the reservoir rock towards the water-wet condition compared to DTAB and ...of ...
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Effect of Hydrocarbon Chain Length Surfactants on Particle Size of SWy-1 Montmorillonite Suspensions
... Surfactants can be used as dispersing agent and main ingredient in cosmetics, creams, gels, etc. [10,11,12,13]. The adsorption of cationic surfactants onto clay minerals occurs by ion exchange and ...
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Study on new biodegradability test methods for surfactants in detergents. Final report
... This plan has essentially three goals: • Industry should identify more precisely which cationic surfactants are actually used in detergents • To carry out ring tests on the extraction an[r] ...
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Lubrication in aqueous solutions using cationic surfactants ? a study of static and dynamic forces
... is prone to form lamellar structures, which in turn are induced at the surface. A prerequisite is therefore that the surfactant adsorbs at the surface in question. This is the reason for choosing cationic ...
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