Sodium dodecylbenzenesulphonate
- CAS No.
- 25155-30-0
- Chemical Name:
- Sodium dodecylbenzenesulphonate
- Synonyms
- sdbs;SODIUM DODECYLBENZENESULFONATE;SODIUM DODECYLBENZENESULFONATE;Sodium dodecyL;DODECYLBENZENESULFONIC ACID SODIUM SALT;DDBS;SODIUM ALKYLBENZENESULFONATE;DODECYLBENZENE SODIUM SULFONATE;LAS-C12;SODIUM LAURYLBENZENESULFONATE
- CBNumber:
- CB4852054
- Molecular Formula:
- C18H29NaO3S
- Molecular Weight:
- 348.48
- MDL Number:
- MFCD00011508
- MOL File:
- 25155-30-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | >300 °C |
|---|---|
| Boiling point | 660.62℃[at 101 325 Pa] |
| Density | 1.02 g/cm3 |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.359 |
| storage temp. | 2-30°C |
| solubility | water: soluble 0,8 g/L °C |
| pka | 0.7[at 20 ℃] |
| form | powder |
| color | light yellow |
| Odor | Slight, characteristic odor |
| Water Solubility | 800mg/L at 25℃ |
| Merck | 14,8612 |
| BRN | 4171051 |
| Henry's Law Constant | 1.6×102 mol/(m3Pa) at 25℃, HSDB (2015) |
| Stability | Stable. |
| Cosmetics Ingredients Functions |
CLEANSING SURFACTANT - CLEANSING |
| InChI | 1S/C18H30O3S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-17-13-15-18(16-14-17)22(19,20)21;/h13-16H,2-12H2,1H3,(H,19,20,21);/q;+1/p-1 |
| InChIKey | JHJUUEHSAZXEEO-UHFFFAOYSA-M |
| SMILES | [Na+].CCCCCCCCCCCCc1ccc(cc1)S([O-])(=O)=O |
| LogP | 1.96 at 25℃ |
| CAS DataBase Reference | 25155-30-0(CAS DataBase Reference) |
| Substances Added to Food (formerly EAFUS) | SODIUM DODECYLBENZENESULFONATE |
| FDA 21 CFR | 173.315; 175.300; 175.320;175.365; 177.1010; 177.1200;177.1630; 177.2600; 177.2800;178.1010; 178.3120 |
| EWG's Food Scores | 1 |
| FDA UNII | 554127163Y |
| EPA Substance Registry System | Sodium dodecylbenzenesulfonate (25155-30-0) |
| Cosmetics Info | Sodium Dodecylbenzenesulfonate |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319 | |||||||||
| Precautionary statements | P264-P270-P280-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-37/38-41 | |||||||||
| Safety Statements | 26-27-36/37/39 | |||||||||
| RIDADR | 3077 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | DB6825000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 9 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29041000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Skin Irrit. 2 |
|||||||||
| Hazardous Substances Data | 25155-30-0(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 in mice: 2 g/kg orally; 105 mg/kg i.v. (Hopper) | |||||||||
| REACH Registrations | Active | |||||||||
| Limited Quantities | 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Sodium dodecylbenzenesulphonate price More Price(39)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 289957 | Sodium dodecylbenzenesulfonate technical grade | 25155-30-0 | 1kg | $110 | 2026-04-30 | Buy |
| Sigma-Aldrich | 289957 | Sodium dodecylbenzenesulfonate technical grade | 25155-30-0 | 10kg | $371 | 2026-04-30 | Buy |
| TCI Chemical | D0990 | Sodium Dodecylbenzenesulfonate (hard type) (mixture) | 25155-30-0 | 500G | $50 | 2025-07-31 | Buy |
| TCI Chemical | D1428 | Dodecene-1 LAS | 25155-30-0 | 1G | $79 | 2025-07-31 | Buy |
| TRC | TRC-D525661-5G | Dodecylbenzenesulfonic Acid Sodium Salt (Technical Grade) | 25155-30-0 | 5g | $84 | 2026-06-03 | Buy |
Sodium dodecylbenzenesulphonate Chemical Properties, Uses, Production
Description
Sodium 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 Properties
white or light yellow flakes
Uses
A surfactant used in proteomics research.
Uses
Anionic 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 Description
Sodium 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 Reactions
Sodium dodecylbenzenesulphonate is soluble in water.
Reactivity Profile
SODIUM DODECYLBENZENESULFONATE is incompatible with strong oxidizers.
Health Hazard
Minor skin and eye irritant. INGESTION: May cause vomiting, diarrhea, and intestinal distension.
Flammability and Explosibility
Non flammable
Industrial uses
These 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 Profile
Poison 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
Synthesis
Sodium dodecylbenzenesulphonate is synthesised using 2-phenyldodecane as raw material by chemical reaction. The specific synthesis steps are as follows:
To a 5 L round bottom flask equipped with mechanical stirrer and an addition funnel was added octadecane and 2-phenyldodecane mixture ( 1.73 kg, 28%> 2-phenyldodecane). The reaction mixture was sparged with argon, warmed to 35°C and 1.25 weight % of oleum (632 g, 1.58 mol) was added dropwise, via addition funnel, to reaction mixture. The reaction mixture was stirred for 1.5 hours at room temperature. Upon completion, the reaction mixture was heated to 50°C and transferred to a separatory funnel and allowed to separate. The bottom layer was added slowly to a stirred solution of 15%> NaOH (aq) (2 L) at 10°C. Upon complete addition the resulting suspension was stirred for an additional 60 minutes. The solid was subsequently isolated by filtration and washed twice with ice-cold water. The solids were air dried for 16 hours and vacuum dried at 80°C to yield sodium, 4-(dodecan-2-yl) benzenesulfonate (555 g, 80.8% yield, 98.5% purity). lH NMR (400 MHz, (CD3)2S0/CDC13) δ 0.84 (t, J = 7.0 Hz, 3H), 0.95- 1.38 (m, 19H), 1.51 (pquart, J = 7.3 Hz, 2H), 2.65 (psext, J = 7.0 Hz, 1 H), 7.1 1 (d, J = 7.6 Hz, 2H), 7.56 (d, J = 8.4 Hz, 2H). 13C NMR (101 MHz, (CD3)2S0/CDC13) δ 13.8, 22.0, 22.1 , 27.0, 28.9, 28.9, 28.9, 28.9, 31.2, 37.6, 38.8, 125.4, 125.8, 145.3, 147.7.
Purification Methods
It crystallises from propan-2-ol or H2O. [Gray et al. J Org Chem 20 515 1955, Beilstein 11 IV 514.]
Alkyl benzene sulfonates
Most 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 considerations
Biodegradability 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.
Sodium dodecylbenzenesulphonate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of5
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 400-6206333 13167063860 | anhua.mao@aladdin-e.com | China | 29977 | 65 |
| Nanjing chemical reagent co. LTD | 025-58369808 17895012682 | 3236925839@qq.com | China | 3524 | 58 |
| Nanjing Suruchem CO.，LTD | 025-52406782 18251847779 | sales@suruchem.com | China | 8 | 58 |
| Henan Vocas Biotechnology Co., Ltd | 18537671377 | vocas@foxmail.com | China | 5000 | 58 |
| Guangdong wengjiang Chemical Reagent Co., Ltd. | 0751-2886750 13927877953 | 3005811397@qq.com | China | 13282 | 58 |
| 15063339523 15063339523 | 2359472372@qq.com | China | 232 | 58 | |
| Jinan Jumeihui Chemical Co., Ltd | 1876152800 15098881566 | 3512833729@QQ.com | China | 43 | 58 |
| Qingdao Minxinda Chemical Technology Co., Ltd. | 15580094078 15562636207 | 501165633@qq.com | China | 48 | 58 |
| Tianjin Jinhui Taiya Chemical Reagent Co., Ltd | 022-59582624 18622766592 | 2163746375@qq.com | China | 271 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
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View Latest Price from Sodium dodecylbenzenesulphonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-18 | Sodium dodecylbenzenesulphonate
25155-30-0
|
1kg | 98% | 100 T/Month | Hebei Qujie Technology Co., Ltd. | ||
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2026-09-18 | Sodium dodecylbenzenesulphonate
25155-30-0
|
1KG | 99% | 500kg/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-18 | Sodium dodecylbenzenesulphonate
25155-30-0
|
0.99 | RongNa Biotechnology Co.,Ltd |
-
- Sodium dodecylbenzenesulphonate
25155-30-0
- 98%
- Hebei Qujie Technology Co., Ltd.
-
- Sodium dodecylbenzenesulphonate
25155-30-0
- 99%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Sodium dodecylbenzenesulphonate
25155-30-0
- 0.99
- RongNa Biotechnology Co.,Ltd
