Dodecylbenzenesulphonic Acid (LABSA 96%) | Premium Surfactant Supplier | CAS 27176-87-0
Name: Dodecylbenzenesulphonic Acid
Cas: 27176-87-0
Purity: 99%
MOQ: 1KG
Directory Guidance on Dodecylbenzenesulphonic Acid
Chemical Structure
Basic Info
Dodecylbenzenesulphonic Acid (CAS Number: 27176-87-0), widely known in the global chemical industry as Linear Alkylbenzene Sulfonic Acid (LABSA 96%), is one of the most critical anionic surfactants used in modern detergent manufacturing and technical chemical formulations. Produced via the sulfonation of linear alkylbenzene, this versatile organic acid compound appears as a viscous, brown-colored liquid with strong emulsifying, foaming, and cleaning capabilities.
In commercially manufactured liquid detergents, washing powders, dishwashing liquids, and hard-surface cleaners, LABSA serves as the primary workhorse surfactant. Once neutralized with sodium hydroxide (NaOH) or organic amines (such as TEA), it converts into alkylbenzene sulfonate, delivering superior soil removal, rapid wetting action, and excellent performance in hard water conditions. Furthermore, due to its high degree of linear alkyl chain structure, our product features excellent aerobic biodegradability, fully aligning with international environmental compliance standards.
| Melting point | 10°C |
| Boiling point | 82 °C |
| density | 1.06 g/mL at 20 °C(lit.) |
| vapor pressure | 0Pa at 25℃ |
| refractive index | n20/D 1.51 |
| Fp | 85 °F |
| storage temp. | 2-8°C |
| solubility | water, alcohols, glycol ethers, glycols, esters, ketones, aromatic and aliphatic hydrocarbons: soluble |
| pka | 0.7[at 20 ℃] |
| form | Colourless Solution |
| color | Colorless to light yellow |
| Water Solubility | 100mg/L at 25℃ |
To support global chemical distribution and meet stringent environmental and industrial safety mandates, our Dodecylbenzenesulphonic Acid production and export management system maintains full compliance with international regulatory standards:
ISO 9001:2015: Quality Management System certified covering raw material selection, sulfonation processing, and finished goods testing.
ISO 14001:2015: Environmental Management System compliance ensuring low-emission manufacturing and waste minimization.
EU REACH Registered / Compliant: Verified documentation available for chemical importation within the European Economic Area.
GHS & CLP Regulation Compliant: Supplied with complete 16-section Safety Data Sheets (SDS) and appropriate dangerous goods hazard labeling.
Biodegradability Compliance: Meets international criteria for primary and ultimate aerobic biodegradability under standard wastewater treatment specifications.
Product Packaging
Every batch of Dodecylbenzenesulphonic Acid undergoes rigorous quality control testing in our fully equipped laboratory using standardized ISO and ASTM analytical methods. Our strict batch-to-batch consistency ensures reliable neutralization ratios and stable viscosity profiles for detergent manufacturers.
Analytical Quality Control Matrix
| Test Parameter | Internal Specification Standard | Test Method / Equipment |
| Active Matter (LABSA) | ≥ 96.0% w/w | Two-Phase Titration (ISO 2271) |
| Free Oil (Unsulfonated Matter) | ≤ 2.0% w/w | Petroleum Ether Extraction |
| Free Sulfuric Acid (H2SO4) | ≤ 1.5% w/w | Acid-Base Titration |
| Water Content | ≤ 1.0% w/w | Karl Fischer Titration |
| Color (Klett / Hazen – 5% Sol.) | ≤ 50 Klett / ≤ 30 Hazen | Spectrophotometer / Colorimeter |
| Viscosity (25°C) | 1500 – 3000 mPa·s | Rotational Viscometer |
| Appearance | Dark brown viscous liquid | Visual Inspection |
Note: A formal Certificate of Analysis (COA) matching specific batch lot numbers is issued and included with all shipping documentation.
A. Household & Commercial Detergents
Laundry Powders & Liquids: Acts as the principal cleaning agent, effectively dislodging organic soils, greases, and particulate dirt from fabrics.
Dishwashing Formulations: Formulated into concentrated hand dishwashing liquids to provide dense foam stability and heavy-duty grease cutting power.
Hard Surface Cleaners: Applied in tile, floor, and bathroom cleaning products due to its rapid wetting and emulsification profile.
B. Industrial Cleaning & Degreasing
Metal Treatment & Car Wash Solutions: Serves as a primary component in vehicle washing shampoos and industrial metal degreasers to break down automotive oils and shop soils.
Textile Processing: Works as a wetting agent, dye leveling aid, and scouring surfactant during textile preparation and finishing processes.
C. Agricultural & Specialty Chemical Processing
Pesticide Emulsifiers: Used as an intermediate ingredient in formulating emulsifiable concentrate (EC) pesticide delivery systems.
Coupling & Hydrotrope Syntheses: Neutralized into specialized ammonium, amine, or potassium salts to create tailored industrial emulsifiers and concrete air-entraining additives.
FAQ
A1: The global market standard for high-grade LABSA is 96% minimum active content. Maintaining a low free oil (under 2.0%) and low free sulfuric acid (under 1.5%) level is essential to prevent excess salt formation and cloudiness during final formulation neutralization.
A3: Yes. Because our product is synthesized from linear alkylbenzene (LAB) rather than branched alkylbenzene (BAB), the carbon chain is readily degraded by microorganisms in municipal wastewater treatment facilities under standard aerobic conditions.
A4: LABSA should be stored in original sealed containers, plastic Drums (210 kg / 220 kg), or IBC Totes (1000 kg). Bulk storage tanks should be constructed from stainless steel (316L/304) or lined carbon steel to resist acid corrosion. Storage temperatures should ideally be maintained between 15°C and 40°C to preserve optimal fluidity.
Related References
Pubchem-Dodecylbenzenesulphonic Acid
Chemicalbook-Dodecylbenzenesulphonic Acid
Manufacturer of Dodecylbenzenesulphonic Acid
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
