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Sodium dodecylbenzenesulphonate

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Products Intro: Product Name:Sodium dodecylbenzenesulphonate
CAS:25155-30-0
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CAS:25155-30-0
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Products Intro: Product Name:Sodium Dodecyl Benzene Sulphonate
CAS:25155-30-0
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Sodium dodecylbenzenesulphonate Basic information
Product Name:Sodium dodecylbenzenesulphonate
Synonyms:DODECYLBENZENE SODIUM SULFONATE;DODECYLBENZENESULPHONIC ACID SODIUM SALT;DODECYLBENZENESULFONIC ACID SODIUM SALT;DODECENE-1 LAS;DDBS;LAS-C12;LAURYLBENZENESULFONIC ACID SODIUM SALT;ARYLSULFONAT
CAS:25155-30-0
MF:C18H29NaO3S
MW:348.48
EINECS:246-680-4
Product Categories:Sulfonate (Surfactants);Functional Materials;Anionic Surfactants;Surfactants
Mol File:25155-30-0.mol
Sodium dodecylbenzenesulphonate Structure
Sodium dodecylbenzenesulphonate Chemical Properties
Melting point >300 °C
density 1.02 g/cm3
form powder
color light yellow
Merck 14,8612
BRN 4171051
Stability:Stable.
InChIKeyJHJUUEHSAZXEEO-UHFFFAOYSA-M
CAS DataBase Reference25155-30-0(CAS DataBase Reference)
EPA Substance Registry SystemSodium dodecylbenzenesulfonate (25155-30-0)
Safety Information
Hazard Codes Xn
Risk Statements 22-37/38-41
Safety Statements 26-27-36/37/39
RIDADR 3077
WGK Germany 2
RTECS DB6825000
HazardClass 9
PackingGroup III
HS Code 29041000
Hazardous Substances Data25155-30-0(Hazardous Substances Data)
ToxicityLD50 in mice: 2 g/kg orally; 105 mg/kg i.v. (Hopper)
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
Sodium dodecylbenzenesulphonate Usage And Synthesis
DescriptionSodium dodecyl benzene sulfonate is a series of organic compounds with the formula C12H25C6H4SO3Na. It is a colourless salt with useful properties as a surfactant. It is usually produced as a mixture of related sulfonates. It is a major component of laundry detergent.
Chemical Propertieswhite or light yellow flakes
UsesA surfactant used in proteomics research.
UsesAnionic detergent.
Uses
Sodium dodecylbenzenesulfonate has been used to stabilize dispersions of graphene nanoflakes (GNFs) during the preparation of the liquid phase of GNFs. It can also suspend single-walled carbon nanotubes as individuals in aqueous media and also give well-resolved spectral features.
General DescriptionSodium dodecylbenzenesulfonate is a white to light yellow flakes, granules or powder. Sodium dodecylbenzenesulphonate is soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Sodium dodecylbenzenesulphonate is used as a synthetic detergent.
Air & Water ReactionsSodium dodecylbenzenesulphonate is soluble in water.
Reactivity ProfileSODIUM DODECYLBENZENESULFONATE is incompatible with strong oxidizers.
Health HazardMinor skin and eye irritant. INGESTION: May cause vomiting, diarrhea, and intestinal distension.
Industrial usesThese frothers are mixtures of alcohols containing 6–8 carbon atoms. They were at one time marketed by DuPont and they are tailored frothers for specific ore types. The bestknown frother from this group is methyl isobutyl carbinol (MIBC) and 2-ethyl hexanol.
Aliphatic alcohol frothers are used as mixtures of different carbon lengths and as a mixture of hydrocarbon oils.
Safety ProfilePoison by intravenous route. Moderately toxic by ingestion. A skin and severe eye irritant. When heated to decomposiuon it emits tomc fumes of NazO. See also SULFONATES
Purification MethodsIt crystallises from propan-2-ol or H2O. [Gray et al. J Org Chem 20 515 1955, Beilstein 11 IV 514.]
Alkyl benzene sulfonatesMost sodium dodecyl benzene sulfonates are a member of the linear alkyl benzene sulfonates, meaning that the dodecyl group (C12H25) is un branched. This dodecyl chain is attached at the 4- position of the benzene sulfonate group. Linear dodecyl-4-benzene sulfonate anions can exist in six isomers (ignoring optical isomers), depending on the carbon of the dodecyl group that is attached to the benzene ring. The isomer shown below left is 4-(5-dodecyl ) benzene sulfonate (4 indicating the position of the benzene ring, 5 indicating the position on the dodecane chain). Branched isomers, e.g. those derived from tetramerized propylene, are also known (below right) but are not as widely used because they biodegrade too slowly.
Production
Trillions of kilograms are produced annually. Given the large scale of the application, the alkyl benzene sulfonates have been prepared by many methods. In the most common route, benzene is alkylated by long chain mono alkenes (e.g. dodecene) using hydrogen fluoride as a catalyst. The purified dodecyl benzenes (and related derivatives) are then sulfonated with sulfur trioxide to give the sulfonic acid. The sulfonic acid is subsequently neutralized with sodium hydroxide.
Environmental considerationsBiodegradability has been well studied , and is affected by the isomerization (branching). The salt has an LD50 of 2.3 mg / liter for fish , about 4x more toxic than the branched tetra propylene benzene sulfonate. It is however biodegraded more rapidly. Oxidative degradation initiates at the alkyl chain.
Tag:Sodium dodecylbenzenesulphonate(25155-30-0) Related Product Information
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