Linear alkylbenzene sulfonate market size prices trend. Colloids are obtained by carbonation of calcium hydroxide in hydrocarbon phase used in lubricant in the presence of abs surfactant. Las replaced branched dodecylbenzene sulfonates, which were phased out because they biodegrade more slowly. Sodium alkylbenzene sulfonate is a high content anionic surfactant with properties of detergency,moistening,foaming,emulsility and dispersity. In addition, kerosene, a petrochemical derivative, is the key raw materials used in producing lab. Pdf chemical analysis of overbased calcium sulfonate detergents.
This is done by treating the liquid contact rob bosman r. He is an expert in the design, manufacture and use of calcium sulfonate complex grease. Neutralization and carbonation were conducted in an oilinwater system instead of the typical waterinoil system. The first calcium sulfonate greases were formed by intentional investiga tion. Most important symptoms and effects acute and delayed. Colloids are obtained by carbonation of calcium hydroxide in hydrocarbon. We doesnt provide overbased calcium sulfonate products or service, please contact them directly and verify their companies info carefully. Las is predominantly made from a mixture of c, to c, linear alkylbenzenes. A method of preparing a calcium sulfonate having at least a tbn of 500 where the method comprises reacting cao, caoh 2 and h 2 o, and synthetic monoalkylbenzene sulfonate and synthetic dialkylbenzene sulfonate in certain molar ratios, respectively, for a sufficient length of time to produce the overbased calcium sulfonate. Preparation of overbased calcium alkylbenzene sulfonate.
The environmental analysis standards confirm testing instruments remain consistent for pollutant level monitoring. The core is covered with overbased calcium sulfonate and calcium 12hydroxystaerate. At first, the solvent, methanol, calcium oxide, base oil, and copromoters were mixed in a flask for a certain time, and then, sulfonic acid was added and blended for a certain time. Use proper personal protective equipment as indicated in section 8. Preparation of calcium benzene sulfonate detergents by a.
Reason for citation sodium dodecylbenzene sulfonate is on the hazardous substance list because it is cited by dot and epa. Preparation of overbased calcium alkylbenzene sulfonate for. Calcium salts of linear and branched alkyl benzene sulfonic acid benzenesulfonic acid dodecylbenzene sulfonicacid calcium lascal 70 calcium salt phenyl sulfonate calcium calcium salt of alkyl benzene sulfonate calcium dodecylbenzenesulfonate absca calcium pheny sulfonate 70% calcium alkyl benzene sulfonate alquil aril sulfonate salt calcium bis. Some implications of these interactions for detergency performance are discussed. Calcium sulfonate nanoparticles are widely used as an.
Benzenesulfonate is the simplest of the class of benzenesulfonates, in which the benzene nucleus carries no other substituents. We have a various type of calcium sulfonate which suitable for your requirement as table below. C 10 c the linear alkyl chain has typically 10 to carbon units, approximately in the following mole ratio c 10. This description applies to all of the cas numbers listed in 1. Calcium sulfonate greases are made by converting a. Typically, n lies between 10 and 16, although generally supplied as a tighter cut, such as c12c15, c12c and c10c, for detergent use. While products contained no significant amount of cao, since the cao dissolved in polar reverse micellar core wet circumstance would transform into caoh 2. Material safety data sheet linear alkylbenzene sulfonate, 1 ml 1mg 3 section 6 accidental release measures general information.
Some implications of these interactions for detergency. Sep 10, 2018 the purpose of this paper is to study the tribological properties of a thiazole derivatives t561, overbased alkyl benzene calcium sulfonate t106a compounded with t561 and overbased alkyl benzene magnesium sulfonate t107 compounded with t561 in rapeseed oil rso. A process for preparing overbased calcium sulfonates having a high degree of alkalinity, which comprises the steps of. The microstructure of calcium sulfonate complex lubricating. Calcium dodecylbenzene sulfonate is one of numerous organometallic compounds sold by american elements under the trade name ae organometallics for uses requiring nonaqueous solubility such as recent solar energy and water treatment applications. Interactions between linear alkylbenzene sulfonates and water. Sodium decylbenzenesulfonate is also known as decyl benzene sodium sulfonate and sodium decylbenzenesulfonamide sweet 1987. Wayne mackwood is the technology manager for detergents and greases for chemtura corp. Alkylbenzene sulfonates are a class of anionic surfactants, consisting of a hydrophilic sulfonate headgroup and a hydrophobic alkylbenzene tailgroup. Most suitable are alkaryl sulphonic acids having a molecular weight of between 300 and 700, e. For the purpose of elucidating the environmental characteristics of anion surfactants linear alkylbenzene sulfonates las in the water of lake dianchi, a sampling investigation in the field.
Major raw materials used in manufacturing the product are kerosene and benzene. Lab linear alkyl benzene, is the precursor of linear alkylbenzene sulfonate las. Jun 07, 1983 the alkyl sulphonic acid should preferably have at least 18 carbon atoms in the alkyl chain. Technical data sheet calcium dodecyl benzene sulfonate. Calcium carbonate phase transformations during the. Calcium sulfonate precipitation boundary diagrams are given which provide a convenient way to study these interactions over a wide range of surfactant and hardness ion levels. Technical evaluation report sodium dodecylbenzene sulfonate sdbs handling. Study of the effect of overbased calcium or magnesium. May 26, 2017 page 2 of 21 51 benzenesulfonate anions can exist in six isomers ignoring optical isomers, depending on the carbon of the 52 dodecyl group that is attached to the benzene ring. Sodium naphthalenesulfonic acid 3 mols condensed with formaldehyde 2 mols. Properties calciante c300cs calcinate c300r calcinate c400clr calcinate c400w form cryst small size amorph amorph cryst medium size calcium, wt % 10. The core consists of calcium carbonate and calcium metaborate.
Process for preparing overbased calcium sulfonates labofina. Calcium dodecylbenzene sulfonate american elements. It is used as a detergent, in cleaning products, and in pesticides. Uses sodium alkyl benzene sulfonate can be used directly to formulate detergents for household and industry use. Accurately assessing threats in the atmosphere, water sources, or soil, personnel can modify and improve conditions to. Molecular weight was calculated according to the structure of the sodium salt of the benzenesulphonic acid with an average c11. By sulfonation, alkylbenzene sulfonate is produced. Single or multielement solutions can be used to compare and check composition determinations of unknown samples. This study presents a novel technique for the controllable preparation of calcium benzene sulfonate caarso32 detergents using a microdispersion process. Alkylbenzene sulfonate chemical compound britannica. Pdf chemical analysis of overbased calcium sulfonate. Linear alkylbenzene sulphonate las is an anionic surfactant. I consider the exemptions established in 40 cfr 180. The focus of this paper is to examine the interaction of linear alkylbenzene sulfonate las surfactants with calcium ions over a range of surfactant and hardness.
It was introduced in 1964 as the readily biodegradable replacement for highly. Soak up residues with noncombustible absorbent material e. Structure of calcium sulfonate grease giasson, et al. Linear alkylbenzene is sulfonated to produce linear alkylbenzene sulfonate las, a biodegradable surfactant. May be neutralized with slaked lime, limestone, or sodium bicarbonate to ph 7. The calcium alkylbenzene sulfonate methanol solution is prepared from the following raw materials in parts by weight. Branched alkylbenzene sulfonates bas were first introduced in the early 1930s and saw significant growth from the late 1940s onwards, in early literature these synthetic detergents are often abbreviated as syndets. This paper examines the interactions of linear alkylbenzene sulfonate las surfactants with calcium ions. Interactions between linear alkylbenzene sulfonates and. In a strict sense, there were five calcium species contributing to w total.
Material safety data sheet linear alkylbenzene sulfonate, 1. The invention relates to a method for preparing a calcium alkylbenzene sulfonate methanol solution. Figure 1 shows the structures of the cosmetic ingredients addressed in this safety assessment. They were prepared by the friedelcrafts alkylation of benzene with propylene tetramer. Pdf linear alkylbenzene sulfonate las in water of lake. Linear alkylbenzene sulfonates and related compounds.
Linear alkylbenzene sulfonate las standard, 1 ml 1. Alkyl benzene sulfonate abs is an organic chemical compound primarily used as a surfactant. Commercial linear alkylbenzene sulphonates las is not a single compound but a mixture of compounds, all subterminal substituted, linear, alkyl chains c 10 c 14 carrying a 4sulphophenyl moiety. In this study, linear alkylbenzene calcium sulfonate nanoparticles were made using linear alkylbenzene. Micelles of overbased complex calcium sulfonate, after kobylyanski, et al.
Pdf detergency performance of linear alkylbenzene sulfonate las. Dec 01, 20 alkyl benzene sulfonates are the major components of anionic detergents. Alkyl benzene sulfonates have two types depending on their chain structures. Synthesis of liner alkylbenzene sulfonate nanoparticle using. Linear alkylbenzene sulfonate, 1ml 1mg safety data sheet according to federal register vol. Synthesis of calcium alkylbenzene sulfonate included two steps. Pdf linear alkylbenzene sulfonate detergency behavior in water. Las showed the same behavior with magnesium as with calcium, on a.
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