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Investigating the removal of linear alkyl benzene sulfonate from aqueous solution by ultraviolet irradiation and hydrogen peroxide process Mansour Ghaderpooria, Mohammad Hadi Dehghanib,c,* aDepartment of Environmental Health Engineering, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, , Tel. +98 ; Fax: +98 21 ; email: .
Radiation graft postpolymerization of sodium styrene sulfonate onto polyethylene ... alkyl radicals. The authors in [27] carried out SSS and AA grafting onto polypropylene matrix preirradiated with electrons in the air. The polypropylene fibers thus prepared were
Mar 01, 2019· Sodium dodecyl benzene sulfonate (SDBS) was mixed with alkyl polyglycoside (APG) and fatty alcohol ether sulfate (AES) and a Scan analyzer and a proposed coal dust wetting method were used to test the ing and wetting properties of various compound solutions.
Linear alkylbenzene sulfonic acid (LABSA) is prepared commercially by sulfonating linear alkylbenzene (LAB). Linear alkylbenzene sulfonate (LAS), the world''s largestvolume synthetic surfactant, which includes the various salts of sulfonated alkylbenzenes, is widely used in detergents as well as in numerous industrial applications.
The typical synthetic sodium sulfonates are monoalkylated aromatic ring systems where the alkylates are linear and longchained. The presence of these shortchained and branched alkyl aromatic groups in Sonneborn sodium sulfonates improves their compatibility with the base oil.
Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups, as opposed to have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Ethers can again be classified into two varieties: if the alkyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ...
perform better and more economical compared to natural detergents. Linear Alkyl Benzene Sulfonate (LAS) is one of synthetic surfactants that is widely used. Although LAS is biodegradable, its introduction to the environment in big amount harms the water bodies. Research on biodegradation of LAS with 100 ppm, 400 ppm, 700 ppm, 1000 ppm and 1500
ingredients are in the chemical class alkyl aryl (benzene) sulfonates and function as surfactant cleansing agents. Figure 1 shows the structures of the cosmetic ingredients addressed in this safety assessment. Sodium Decylbenzenesulfonate is also known as Decyl Benzene Sodium Sulfonate and Sodium Decylbenzenesulfonamide (Sweet 1987).
Mixture of alkyl phenyl sulfonates of alkaline earth metals having: (a) from 20% to 70% by weight of a linear mono alkyl phenyl sulfonate in which the linear mono alkyl substituent contains from 14 to 40 carbon atoms, preferably from 20 to 24 carbon atoms, and the mole% of the phenyl sulfonate radical fixed on position 1 or 2 of the linear alkyl chain is between 10% and 25%, preferably between ...
It is described in this poster the route map in the development and manufacture of alkyl aryl sulfonates surfactants for the Cepsa ASP pilot project in the Caracara Sur field, Los Llanos basin (Colombia) from a continuous feedback of the laboratory tests.
The authors show that the chance of forming alkyl mesylates is extremely low, that they are usually not as toxic as the regulations would suggest, and that they are efficiently purged during workup and isolation. The authors'' primary conclusion is that the regulatory guidelines on alkyl sulfonate impurities are seriously in need of updating ...
Alkyl Sulfonate An alkyl sulfonate is an alkyl ester of a sulfonic acid and has the following general structural formula . R 1 (most common) = alkyl, aryl
Provided is a fatty acid alkyl ester sulfonate metal salt mixture comprising: (a) a fatty acid alkyl ester sulfonate metal salt for which the heatabsorption peak area between 50°C and 130°C is less than 50% of the total absorption peak area between 0°C and 130°C, as measured by a differential scanning thermal analyzer; and (b) a fatty acid ...
Typical anionic surfactants include soaps, alkylbenzene sulfonates, alkyl sulfonates, alkyl sulfonates, alkyl sulfates, salts of fluorinated fatty acids, silicones, fatty alcohol sulfates, polyoxyethylene fatty alcohol ether sulfates, αolefin sulfonate, polyoxyethylene fatty alcohol phosphates ether, alkyl alcohol amide, alkyl sulfonic acid ...
Reductive Defluorination of Aqueous Perfluorinated Alkyl Surfactants: Effects of ... of perfluorinated alkyl carboxylates and sulfonates, they can be classified as persistent ... redox potential35, anion radical stability25, ionic head group16, –(CF 2)n− chain length 20,
Sodium bisulfite will react with normal alpha olefins via a freeradical mechanism to produce alkane sulfonates. Alkane sulfonates with chain lengths of C12 or higher have limited water solubility, suggesting their application in synthetic detergent bars. Shorter alkane sulfonates like .
USA US623286A USA USA US A US A US A US 623286 A US623286 A US 623286A US A US A US A US A US A US A Authority US United States Prior art keywords diphenyl ether grams product percent alkyl Prior art date Legal status (The legal status is an assumption and is not a .
Inorganic salts are soluble in __ but alkyl halides are not. Mixed solvents such as ethanolwater mixtures can dissolved both the alkyl halide and the nucleophile are frequently used. alkyl halides may be prepred from alchols by nucleophilic substitution from alkanes by free radical halogenation and from alkenes from addition of hydrogen halides
Sulfonate anions are weak bases; they are the conjugate bases of sulfonic acids, which are strong acids. Thus, sulfonate esters prepared from primary and secondary alcohols, like primary and secondary alkyl halides, undergo S N2 reactions in which a sulfonate ion serves as the leaving group.
An alkyl is any of a series of univalent radicals of the general formula CnH2n+1 derived from aliphatic hydrocarbons. ... Linear Alkyl Sulfonates are far more readily biodegraded than Alkyl ...
A sulfonic acid (or sulphonic acid) refers to a member of the class of organosulfur compounds with the general formula R−S(=O) 2 −OH, where R is an organic alkyl or aryl group and the S(=O) 2 (OH) group a sulfonyl hydroxide. As a substituent, it is known as a sulfo sulfonic acid can be thought of as sulfuric acid with one hydroxyl group replaced by an organic substituent.
This thesis describes an exploration into the reactivity of the bifunctional acceptors pentafluorophenyl vinyl sulfonate and trichlorophenyl vinyl sulfonate. Intermolecular alkyl radical addition to trichlorophenol vinyl sulfonate mediated by both 1ethylpiperidinium phosphate (EPHP) and tributyltin hydride was carried out effectively to ...
Abstract. Petroleum may be recovered from petroleum containing formations having high salinity and/or high temperature by injecting into the formation an aqueous fluid containing an effective amount of a surface active agent characterized by the formula: RO(AO)N(CH2CH(CH2OCH2CH2SO3X)O)MH wherein R is an alkyl or alkylaryl radical, AO is an alkylene oxide radical, n is an integer of ...
Detergent compositions with high sudsing properties comprise an anionic surfactant of the alkyl sulfate, alkyl ethoxy sulfate, 2sulfonated fatty acid methyl esters, alkyl benzene sulfonates, secondary alkyl or alkenyl sulfates, alkyl ethoxy carboxylates, sulfated or polyhydroxy fatty acid amides class, and a specially selected soap such as ...
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