نتایج جستجو برای: sodium dodecyl benzene sulfonate

تعداد نتایج: 211908  

Journal: :Journal of colloid and interface science 2005
C Nethravathi G Harichandran C Shivakumara N Ravishankar Michael Rajamathi

Dodecyl sulfate and dodecylbenzene sulfonate intercalated alpha-hydroxides of nickel and cobalt were synthesized by ammonia precipitation. These solids delaminate to give a colloidal dispersion of layers in organic solvents such as 1-butanol. The dispersed layers could be reassembled either by evaporation of the colloid or by coagulation by the addition of a polar solvent.

Four new azo-dyes, 3-phenyl azopentane-2,4-dion (LA), 3-(4-nitro phenyl azo)-pentane-2,4-dion (LP), 3-(2-nitro phenyl azo)-pentane-2,4-dion (LO) and 4-(1-acetyle-2-oxo-propyl azo)-benzene sulfonate sodium (LS), were synthesized from, aniline, 4-nitroaniline, 2-nitroaniline and sulfanilic acid with acetylacetone, respectively. Reaction of these new dyes with acetate salts of copper(II), nickel(I...

Journal: :iranian journal of oil and gas science and technology 0
mohammad saki 1ms. student, mapsa, special core analysis lab, tehran, iran ali reza khaz'al department of chemical engineering, isfahan university of technology, isfahan 8415683111, iran

the chemical surfactant flooding can mobilize the trapped oil by lowering the interfacial tension between oil and brine and in some cases altering the reservoir rock wettability. in this work, the effect of surfactants on oil/brine interfacial tension was experimentally investigated. first, the effect of surfactants concentration was surveyed. afterwards, the effect of salinity on surfactant be...

Journal: :Chemical communications 2013
Lijuan Shi Ying Wei Nan Sun Liqiang Zheng

It was found for the first time that rich lamellar structures are formed by a single-tailed amphiphilic ionic liquid (IL), 1-dodecyl-3-methylimidazolium β-naphthalene sulfonate ([C12mim][Nsa]), in aqueous solutions without any additives. With increasing IL concentration, spontaneous transition from micelles to unilamellar and multilamellar vesicles, planar bilayers, and then to lamellar liquid ...

Journal: :Antimicrobial Agents and Chemotherapy 1981

Journal: :Water research 2010
D W Metge R W Harvey G R Aiken R Anders G Lincoln J Jasperse

This study assessed the efficacy for removing Cryptosporidium parvum oocysts of poorly sorted, Fe- and Al-rich, subsurface sediments collected from 0.9 to 4.9 and 1.7-13.9 m below land surface at an operating riverbank filtration (RBF) site (Russian River, Sonoma County, CA). Both formaldehyde-killed oocysts and oocyst-sized (3 microm) microspheres were employed in sediment-packed flow-through ...

Journal: :avicenna journal of clinical microbiology and infection 0
fariha akhter chowdhury department of pharmaceutical sciences, north south university, dhaka, bangladesh mohammad nurul islam department of pharmaceutical sciences, north south university, dhaka, bangladesh anamika saha department of pharmaceutical sciences, north south university, dhaka, bangladesh sabrina mahboob department of pharmaceutical sciences, north south university, dhaka, bangladesh abu syed md. mosaddek department of pharmacology, uttara adhunik medical college, dhaka, bangladesh md omar faruque department of physiology and molecular biology, bangladesh university of health sciences, dhaka, bangladesh

conclusions our successful extraction of purified lps from e. coli isolates of uti patients’ urine samples can be an important step to understand the uti disease conditions. results the silver-stained gel demonstrated both smooth and rough type lps by showing trail-like band patterns with the presence and lacking o-antigen region, respectively. coomassie blue staining showed no band assuring th...

Journal: :international journal of environmental research 2012
m. hatamoto h. nagai s. sato m. takahashi s. kawakami

a newly developed natural rubber deproteinization process produces deproteinized natural rubber (dpnr) wastewater as an intermediate product containing a high concentration of sodium dodecyl sulfate (sds) and rubber. in this study, a novel process to recover the residual rubber and energy as methane from dpnr wastewater was developed. as a pretreatment, sds and residual rubber in dpnr wastewate...

Journal: :Bulletin of Chemical Reaction Engineering & Catalysis 2021

Biochar is an interesting adsorbent material due to its use correlated with biomass waste utilization and also minimize environmental pollution from high amount of by-product. Regarding improve the biochar ability in water treatment, several surface modifications have been developed, one them modification using surfactant. In this study, sodium dodecylbenzene sulfonate (SDBS) was used modify pr...

Journal: :Industrial & Engineering Chemistry Research 2021

Understanding how the surfactant molecular structure affects foam stability is important in various applications, such as soil remediation, food industry, enhanced oil recovery, and hydraulic fracturing. In this study, we conduct a systematic series of experiments Hele–Shaw cell to assess explain effect surfactants on foamability absence presence asphaltene aggregates. Four with different weigh...

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