Product Name | |
| CAS | 27176-87-0 |
Quality Standard | Standard |
Product Grade | Cationic Emulsifiers |
Place of Origin |
China |
Dangerous Goods | Yes |
Dodecylbenzene Sulfonic Acid, commonly abbreviated as DDBSA, is a type of high-efficiency anionic surfactant precursor. It is synthesized via the sulfonation reaction of linear dodecylbenzene with sulfur trioxide or fuming sulfuric acid. At room temperature, it exists as a pale yellow to brown viscous liquid with a characteristic aromatic odor. It is slightly soluble in water but readily dissolves in organic solvents such as ethanol, ether, and benzene.
DDBSA is a key intermediate for the production of linear alkylbenzene sulfonates (LAS), which are widely used surfactants. It features strong surface activity, excellent emulsifying, dispersing, and detergency properties, and good compatibility with most anionic and non-ionic surfactants. However, it is strongly acidic (pH value of 1% aqueous solution is about 1), and needs to be neutralized with alkalis (such as sodium hydroxide, potassium hydroxide, or ethanolamine) to form salts before application in most formulations. It is cost-effective and has stable performance under a wide range of conditions, making it one of the most widely used surfactant raw materials in the global market.
- Excellent detergency and emulsificationAfter neutralization to form LAS, it exhibits strong ability to emulsify grease, disperse particulate dirt, and remove stubborn stains from various surfaces. It is particularly effective in breaking down oil-based contaminants in both hard and soft water environments.
- Strong surface activityIt can significantly reduce the surface tension of aqueous solutions, enabling better wetting and penetration into fibers, fabrics, or hard surfaces, thus enhancing the overall cleaning efficiency of formulations.
- Good compatibility and processabilityIt can be compounded with other surfactants, builders, and functional additives to adjust formulation performance. The neutralization reaction is easy to control, and the resulting salts have good water solubility and stability.
- Cost-effectivenessWith mature production processes and abundant raw material sources, DDBSA has a relatively low cost, making it an economical choice for large-scale applications in household and industrial cleaning products.
- Laundry detergents (powder and liquid): DDBSA is neutralized to sodium dodecylbenzene sulfonate (LAS), which serves as the core cleaning ingredient in most mass-market laundry detergents. It effectively removes oil stains, food residues, and dirt from clothes, with a recommended dosage of 10%–25% for the neutralized LAS in the final formulation.
- Dishwashing liquids: It is compounded with other surfactants such as AES to balance cleaning power and foam stability, effectively emulsifying kitchen grease and food residues on tableware, with a recommended dosage of 5%–15% for the neutralized product.
- Household all-purpose cleaners: Neutralized DDBSA is added to cleaners for floors, kitchens, and bathrooms, providing strong decontamination ability to remove dirt, oil stains, and water stains from hard surfaces.
- Textile industry: Used as a wetting agent, scouring agent, and dyeing auxiliary in textile pre-treatment and dyeing processes. It helps remove grease, wax, and sizing agents from fibers, improves the uniformity of dye absorption, and enhances the quality of dyed fabrics, with a recommended dosage of 2%–8% (neutralized form).
- Leather industry: Applied in leather degreasing and cleaning processes, it can effectively remove excess grease from raw hides without damaging the leather fiber structure, laying a good foundation for subsequent tanning and finishing.
- Pesticide formulations: After neutralization, it is used as an emulsifier and dispersant in pesticide emulsifiable concentrates and wettable powders, improving the dispersion stability of pesticide active ingredients in water and enhancing their adhesion and penetration on crop surfaces, with a recommended dosage of 3%–10%.
- Metal cleaning industry: It is formulated into metal degreasers and cleaners to remove heavy oil stains and industrial dirt from metal surfaces, suitable for cleaning machinery parts, automotive components, and metal processing equipment.
- Other industrial uses: It is also used in the production of emulsion polymers (such as latex), as a dispersant in paint and coating formulations, and as a component in industrial wastewater treatment agents to help separate oil and water.
- Storage conditionsStore DDBSA in a sealed, corrosion-resistant container (such as stainless steel or HDPE containers) in a cool, dry, and well-ventilated area. Keep it away from direct sunlight and high temperatures (avoid storage above 40°C). It must be stored separately from alkalis, oxidants, and edible chemicals to prevent accidental neutralization or contamination. Under proper storage conditions, its shelf life is generally 12 months.
- Safety instructionsDDBSA is a corrosive acidic liquid. Direct contact with skin or eyes will cause severe irritation and chemical burns. During operation, wear full protective equipment, including acid-resistant gloves, goggles, and protective clothing. Avoid inhaling its fumes, as it may irritate the respiratory tract. If it accidentally contacts the skin, rinse immediately with plenty of water for at least 15 minutes; if it gets into the eyes, rinse thoroughly with water and seek medical attention promptly. It is not classified as a hazardous chemical in some regions after neutralization, but the raw DDBSA requires strict compliance with acidic chemical handling regulations during transportation and storage.
Product Introduction