Recently added articles from Journal of Surfactants and Detergents:
The Synthesis of Oleic Acid Polyglycol Ester Catalyzed by Solid Super Acid
Mar 01, 2009; ... Abstract A SO^sub 4^^sup 2-^/ZrO^sub 2^ super acid was prepared and the effect of different kinds of catalysts on the esterification reaction reviewed. The results showed that the SO^sub 4^^sup 2-^/ZrO^sub 2^ super acid had higher catalytic activity and reactive selectivity in the ...
The HLD-NAC Model for Mixtures of Ionic and Nonionic Surfactants
Mar 01, 2009; ... Abstract The HLD-NAC model has been used as an "equation of state" to predict the properties of microemulsion (µE) systems formulated with either anionic or nonionic surfactants. The model uses the concept of the hydrophilic-lipophilic difference (HLD) to calculate the chemical potential ...
Analysis of Linear Alkylbenzene Sulfonate in Waste Water and Sludge by High Performance Liquid Chromatography: An Exercise of Validation
Mar 01, 2009; ... Abstract Linear alkylbenzene sulfonate (LAS) an ingredient of many household and industrial detergents can reach the environment after disposal of raw sewage. Its correct detection and quantification in different environmental samples is a critical issue for evaluating its environmental ...
Influence of Sodium Ions on Micelles of Surfactin-C^sub 16^ in Solution
Mar 01, 2009; ... Abstract The properties of surfactin-C^sub 16^ aqueous solution in the presence of Na+ ions, produced by Bacillus subtilis, were studied by the fluorescence method. The critical micelle concentration (CMC) of surfactin-C^sub 16^ was measured as 24.7 µM in 0.05 M Tris buffer (pH 8.5-8.6) ....
Quantitative Monitoring of the Amidation Reaction Between Coconut Oil and Diethanolamine by Attenuated Total Reflectance Fourier Transform Infrared Spectrometry
Mar 01, 2009; ... Abstract An analytical procedure was developed to monitor the batch reaction of coconut oil and diethanolamine which also would determine the cocodiethanolamide (CDEA) content of the final product. The method was based on attenuated total reflectance Fourier transform infrared ...
Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments
Mar 01, 2009; ... Abstract Surfactants enhance adsorption of an aroma chemical on cotton fiber. Strong hydrophobic and electrostatic interactions between surfactant and fiber substrate result in higher adsorption of surfactant/aroma chemical aggregates than for the aroma chemical alone, with higher ...
Drawbacks of Surfactant Presence on the Dissolution and Mechanical Properties of Detergent Tablets: How to Control Interfaces by Surfactant Localization
Mar 01, 2009; ... Abstract The aim of this study is to limit the hurdles generated by the presence of a surfactant, i.e., sodium dodecyl sulfate (SDS), in effervescent detergent tablets containing a chlorine provider. The results are highlighted by investigating the tablet's functional characteristics ...
Partitioning and Localization of Fragrances in Surfactant Mixed Micelles
Mar 01, 2009; ... Abstract The localization and dynamics of fragrance compounds in surfactant micelles are studied systematically in dependence on the hydrophobicity and chemical structure of the molecules. A broad range of fragrance molecules varying in octanol/water partition coefficients P^sub OW^ is ...
Interaction Between an Anionic and an Amphoteric Surfactant. Part I: Monomer-Micelle Equilibrium
Dec 01, 2008; ... Abstract A mixture of anionic and amphoteric surfactants is composed of three components at intermediate pH levels: anionic, cationic (protonated amphoteric), and zwitterionic (unprotonated amphoteric). Knowledge of the composition of each surfactant in both monomer and micellar forms ...
Spectrophotometric Determination of Cationic Surfactants Using Patent Blue V: Application to the Wastewater Industry in Algiers
Dec 01, 2008; ... Abstract Patent Blue V has been applied in a solvent extraction spectrophotometric method for the determination of cationic surfactants (CS) in industrial wastewaters. The method is based on the introduction of Patent Blue V as an anionic dye, and the formation of an ion pair association ...
Macro- and Microemulsion Silicone Softeners on Polyester Fibers: Evaluation of Different Physical Properties
Dec 01, 2008; ... Abstract In this research, polyester fabrics were treated with three concentrations (10, 20 and 30 g/L) of macro- and microemulsions of silicones in water at 30 °C by the padding method. The treated fabrics were men dried/cured at 130 °C for 40 s. Some of the physical and chemical ...
Foamability of Detergent Solutions Prepared with Different Types of Surfactants and Waters
Dec 01, 2008; ... Abstract In the development of new detergent products, it is important to test me foaming behavior of different types of surfactants. Different types and concentrations of surfactant solutions prepared with three types of water are expected to present differences in their foamability. In ...
Study of Foaming Properties and Effect of the Isomeric Distribution of Some Anionic Surfactants
Dec 01, 2008; ... Abstract Using different reaction conditions of photosulfochlorination of n-dodecane, two samples of anionic surfactants of sulfonate type are obtained. Their micellar behavior has been already reported and the relationship between their isomeric distribution and their chemical ...
Micellization of Cetyl Triphenyl Phosphonium Bromide Surfactant in Binary Aqueous Solvents
Dec 01, 2008; ... Abstract The effect of the different binary aqueous organic solvents viz. 1,4-dioxane, acetonitrile, dimethyl-sulfoxide, ethylene glycol, and methanol, on the micelle formation and thermodynamics of a cationic surfactant cetyl triphenyl phosphonium bromide has been studied ...
Use of an Aqueous Methionine Mobile Phase in Identification of Cetylpyridinium Chloride on a Kieselguhr Layer with Preliminary Separation from Nonionic Surfactants
Dec 01, 2008; ... Abstract Thin layer chromatography of cationic and nonionic surfactants was performed on kieselguhr 'G' layers. Eight amino acids at three different concentration levels were used as aqueous mobile phase systems to examine the chromatographic behavior of cationic and nonionic ...
Optimization of an Alkylpolyglucoside-Based Dishwashing Detergent Formulation
Dec 01, 2008; ... Abstract The aim of this work was to formulate and optimize the washing performance of an alkylpolyglucoside-based dishwashing detergent. The liquid detergent was formulated with five ingredients of commercial origin: anionic (linear sodium alkylbenzenesulfonate and sodium ...
Dirt and Grime in Bathrooms: Their Chemical Composition and the Origin of the Triacylglycerols Contained Therein
Dec 01, 2008; ... Abstract Bathrooms provide environments that encourage the formation of biofilms and mold on the hard surfaces of bathtubs and tile walls. To prevent such microbe-produced grime from spreading, methods such as bleaching and scrubbing may be commonly employed. The removal of dirt before ...
Characterization and Surfactant-Enhanced Washing Treatability of Drilling Fluids Stored for More than 20 Years
Dec 01, 2008; ... Abstract Drilling fluids represent a significant environmental hazard owing to the fact that they are frequently stored in open vessels without any treatment. The drilling fluids studied in this work have been stored for 20-30 years in open cesspits in the state of Tabasco (Mexico). The ...
A Unified Survey of Applicability of Theories of Mixed Adsorbed Film and Mixed Micellization
Dec 01, 2008; ... Abstract Mixed micelles are an ever-interesting field in applied as well as academic research. An interesting problem is to determine the composition of the mixed monolayer and the micellar phase and interaction parameters among the individual components. Several theories have already ...
The Clouding Phenomenon for Anionic Sodium Dodecyl Sulfate + Quaternary Bromides in Polar Nonaqueous- Water-Mixed Solvents
Dec 01, 2008; ... Abstract Aqueous sodium dodecyl sulfate (SDS) solutions show clouding in the presence of tetra-n-butylammonium bromide (TBAB) and tetra-n-butylphosphonium bromide (TBPB). In this study, we report the effect of various volume percents of different polar nonaqueous solvents (acetonitrile, ...