Anionic surfactant. Due to the production of low cost, good performance, which is widely used, is the largest amount of household detergent synthetic surfactants, also part of the production of magnesium, calcium salts and organic amine salts such as triethanolamine. Calcium dodecylbenzenesulfonate [27176-87-0] having excellent emulsifying properties, is the preparation of a variety of pesticides used in the mixed emulsifiers important part. By α- olefins and benzene in the three aluminum chloride catalyst condensation, condensation by caustic liquid, steamed recovery of benzene after washing, vacuum distillation refining benzenes. Then sulfonated with fuming sulfuric acid, lime neutralization (carried out in 2-fold amount of ethanol), to give calcium dodecylbenzenesulfonate. For acrylic emulsion anionic emulsifiers.
CAS No.: 25155-30-0
Is an anionic surfactant, its critical micelle concentration of 1.2 * 10-3mol / L
Benzene sulfonate yellow oily body, purified form hexagonal or rhomboid strong lamellae. A micro-toxic,
International security organizations have been identified as safe chemicals, can be used in fruit and cleaning utensils. The amount of benzene sulfonate detergent used in the largest, the use of large-scale automated production and low prices. Alkylbenzene sulfonate used in detergents have a branched structure (ABS) and a linear structure (LAS) two kinds, a branched structure biodegradable small, pollute the environment, and straight chain structure readily biodegradable biodegradability can be greater than 90%, a small degree of environmental pollution.
Benzene sulfonate is neutral, more sensitive to water hardness, easily oxidized, foaming power, detergency, easy to compound with various additives, low cost, the synthesis process maturity, wide range of applications , is excellent anionic surfactant. Sodium alkylbenzenesulfonate of particulate soils, protein soils and oily dirt significant stain removal, cleaning action on natural fibers of particulate soil is preferred, the washing detergency with temperature increasing enhancement of protein dirt effects than non-ionic surfactants, and rich foam. However, there are two drawbacks alkylbenzene sulfonate, namely poor resistance to hard water, stain removal performance may decrease with the hardness of water, so its main detergent-active agent must be equipped with a suitable amount of chelating agent used. Second, skim strong force, there is some irritation to the skin when hand washing, washing clothes feel bad, it is appropriate for the cationic surfactant rinse softener. In recent years, in order to obtain a better overall washing effect, LAS often used with AEO and other non-ionic surfactant complex. LAS main purpose is formulated for various types of liquid, powder, granular detergents, cleaners and cleaning agents.
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