Dodecylbenzenesulfonic acid

Dodecylbenzenesulfonic acid

CAS No.: 27176-87-0
Molecular Formula: C18H30O3S
Molecular Weight: 348.47583
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product description

Dodecylbenzenesulfonic acid is an important anionic surfactant. It typically appears as a viscous brown liquid, characterized by strong acidity as well as excellent detergency and foaming properties. Due to the presence of a long-chain alkyl group and a hydrophilic sulfonic acid group in its molecular structure, it can significantly reduce the surface tension of water and exhibits excellent emulsifying and wetting capabilities.


Chemical Properties

PropertyValue
Melting point10°C
Boiling point82 °C
Density1.06 g/mL at 20 °C (lit.)
Vapor pressure0 Pa at 25°C
Refractive indexn20/D 1.51
Flash point85 °F
Storage condition2-8°C
SolubilitySoluble in water, alcohol,   glycol ethers, glycol, ketones, aromatics and aliphatic hydrocarbons
Acidity coefficient (pKa)0.7 [at 20 °C]
FormColorless solution
ColorColorless to light yellow
Water solubility100 mg/L at 25°C
StabilityStable. Hygroscopic. Incompatible with bases, oxidizing agents, metals.
Cosmetic ingredient functionSURFACTANT - CLEANSING CLEANSING
InChI1S/C18H30O3S/ 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)
InChIKeyKWXICGTUELOLSQ-UHFFFAOYSA-N
SMILESCC(C)(CCCCCCCCO)C1CCC(c1)S(O)(=O)=O
LogP4.78 at 25°C
CAS database27176-87-0 (CAS DataBase Reference)
EPA chemical substance informationDodecylbenzenesulfonic acid (27176-87-0)


Safety Information

PropertyValue
Hazard symbolC
Hazard class codes34-22-10-67
Safety instructions26-36/37/39-45-16
UN number for transportUN 2924 3/PG 3
WGK Germany2
RTECS numberDB6600000
TSCATSCA listed
Hazard class8
Packing groupIII
HS code34021100
Storage category3 - Flammable liquid
Hazard classificationAcute toxicity, Category 4   (Oral)
Serious eye damage, Category 1
Flammable liquid, Category 3
Skin corrosion, Category 1B
Specific   target organ toxicity – single exposure, Category 3
Hazardous substances data27176-87-0 (Hazardous Substances Data)


Product Usage

Dodecylbenzenesulfonic acid is a widely used anionic surfactant. In the detergent industry, it serves as a key raw material for producing household and industrial liquid detergents and laundry powders, offering excellent detergency, foaming, and emulsifying properties. In the textile and dyeing industry, it is used as a penetrating agent and degreaser, helping dyes penetrate evenly and removing grease from fabrics. Additionally, it acts as an auxiliary agent in pesticides, coatings, and polymerization reactions. Due to its strong acidity, it is also used in metal cleaning and industrial equipment rust removal.

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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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Q1: What international standards do your products and services comply with?

A1: Our products fully comply with international standards such as REACH, MSDS, and COA, and we strictly implement the ISO9001 quality management system. We can also provide third-party testing reports (SGS, BV, etc.) according to customer needs.


Q2: How long does it take for goods to be delivered to my country?
A2: The delivery time depends on the transport mode and destination country. Generally, sea transport takes 15-30 days, air transport takes 3-7 days, and we will optimize the transport route to shorten the delivery time as much as possible.


Can you provide customs clearance services for dangerous chemicals?
A3: Yes. Our team is proficient in the customs clearance procedures for dangerous chemicals in various countries, and can provide professional compliant declaration and customs clearance services to ensure smooth customs clearance.


Q4: Do you provide customized product and service solutions?
A4: Yes. We can provide personalized product customization and export service solutions according to your specific needs (product specifications, application scenarios, procurement volume, etc.).

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