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An example of a linear alkylbenzene sulfonate (LAS) Linear alkylbenzene sulfonates (LAS) are prepared industrially by the sulfonation of linear alkylbenzenes (LABs), which can themselves be prepared in several ways. [2] In the most common route benzene is alkylated by long chain monoalkenes (e.g. dodecene) using hydrogen fluoride as a catalyst. [9]
Alkylbenzenes are the primary raw material in making synthetic alkylbenzene sulfonates. Synthetic sulfonates are the most widely used detergents, as industrial oil, emulsifiers, demulsifiers, rust inhibitors, dispersants, surfactants for enhanced oil recovery, ore-floatation agents, and wetting agents, among others. LABs such as alkylbenzene ...
Linear alkylbenzene is sulfonated to produce linear alkylbenzene sulfonate (LAS), a biodegradable surfactant. LAS replaced branched dodecylbenzene sulfonates, which were phased out because they biodegrade more slowly.
Detergents. A detergent is a surfactant or a mixture of surfactants with cleansing properties when in dilute solutions. [1] There are a large variety of detergents. A common family is the alkylbenzene sulfonates, which are soap-like compounds that are more soluble than soap in hard water, because the polar sulfonate is less likely than the polar carboxylate of soap to bind to calcium and other ...
Prominent alkyl sulfates include ammonium lauryl sulfate, sodium lauryl sulfate (sodium dodecyl sulfate, SLS, or SDS), and the related alkyl-ether sulfates sodium laureth sulfate (sodium lauryl ether sulfate or SLES), and sodium myreth sulfate. Others include: Alkylbenzene sulfonates; Docusate (dioctyl sodium sulfosuccinate ...
The resulting sulfonic acid is then neutralized with base to give sodium alkylbenzenesulfonate, which is subsequently blended with other components to produce cleaning products. [1] Dodecylbenzene (and its isomers) are precursors to linear alkylbenzene sulfonate detergents. [2]
Linear alkylbenzene sulfonate (LAS) with the formula of C 12 H 25 C 6 H 4 SO 3 Na, also known as sodium dodecylbenzene sulfonate, is the most widely used anionic surfactant in laundry detergent because it has minimal environmental impact for its readily biodegradation.
Included are several fundamental benzene-based feedstocks such as ethylbenzene (precursor to styrene), cumene (precursor to phenol and acetone), linear alkylbenzene sulfonates (for detergents). [11] Sodium dodecylbenzene, obtained by alkylation of benzene with dodecene, is a precursor to linear alkylbenzene sulfonate detergents.