Alkyl Benzene Sulfonates Slideshare 2020
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Dec 01, 2013 · Alkyl benzene sulfonates.• Mechanism of breakdown involves the degradation of the straight alkyl chain, the sulphonate group and finally benzene ring. • Alkyl chain breakdown starts with the oxidation of the terminal methyl group oxidation through alcohol, aldehyde to carboxilic acid. • The reaction is catalyzed by alkane monooxygenase and two dehydrogenase. May 13, 2017 · Toxicity data of alkyl benzene sulfonate. mg/l LC50 fishes 3-10 LC50 daphnia 8-50 NOEC algae, growth inhibition 30-300 For anionic surfactants the length of the alkyl chain has been found to be closely related to skin irritability. Straight chain or linear alkyl benzene sulfonate show weak effects to skin since they are bio soft. Dec 20, 2012 · INTRODUCTION• Benzene is a chemical that is a colourless or light yellow liquid at room temperature. It has a sweet odour and is highly flammable.• Natural sources of benzene include volcanoes and forest fires. Benzene is also a natural part of crude oil, gasoline, and cigarette smoke. 3.

Linear alkylbenzene sulfonates LAS are prepared industrially by the sulfonation of linear alkylbenzenes LABs, which can themselves be prepared in several ways. In the most common route benzene is alkylated by long chain monoalkenes e.g. dodecene using hydrogen fluoride as a catalyst. Persian Linear alkyl benzene sulfonate is an anionic surfactants with molecules characterized by a hydrophobic and a hydrophilic agents. Alpha-olefin sulfonates AOS alkyl sulfates named as AS are also e.g. of commercial anionic surfactants. They are nonvolatile compounds produced by sulfonation. 69669-44-9 C10-14 Alkyl deriv benzene sulfonic acid, sodium salt 85117-50-6 C10-14 Monoalkylbenzene sulfonic acid, sodium salt 90194-45-9 C10-13 Alkyl deriv benzene sulfonic acid, sodium salt 127184-52-5 4-C10-13-sec Alkyl deriv. benzene sulfonic acid, sodium salt Category Name Linear Alkylbenzene Sulfonate LAS Structural Formula.

August 11, 2005 4 The LAS molecule contains an aromatic ring sulfonated at the para position and attached to a linear alkyl chain at any position except the terminal carbons. The alkyl carbon chain typically has 10 to 14 carbon atoms and the linearity of the alkyl chains ranges from 87 to 98%. Apr 27, 2015 · Global Linear Alkyl Benzene Sulfonate LAS Market 2015-2019.Market Overview • LAS is also known as sodium dodecylbenzenesulfonate. • These colorless salts, with organic formula C12H25C6H4SO3Na, are commercially manufactured in the form of mixtures of related sulfonates and find usage in the production of heavy-duty cleaners, laundry powders. This type of nomenclature is discussed in Chapter 16. A sulfonate ester is a compound in which the acidic hydrogen of a sulfonic acid is replaced by an alkyl or aryl group. Thus, in ethyl benzenesulfonate, the acidic hydrogen of benzenesul- fonic acid is replaced by an ethyl group.

Alkyl benzene sulfonate ABS is an organic chemical compound primarily used as a surfactant. Its chemical formula is C 6 H 5 CnH 2 n1, where n lies between 10 and 16. ABS is a major component of anionic detergents. Alkyl benzene sulfonates have two types depending on their chain structures: branched and linear chain. Hydrogen fluoride HF and aluminium chloride AlCl 3 are the two major catalysts for the alkylation of benzene with linear mono-olefins. The HF-based process is commercially dominant; however, the risk of releasing HF a poisonous substance into the environment became a concern particularly after the Clean Air Act Amendment.

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