Dodecylbenzene sulfonic acid uses(LABSA 96%)

Dodecylbenzene sulfonic acid uses reference image:

Linear alkylbenzene sulfonic acid (LABSA 96%), a concentrated anionic surfactant, is pivotal in manufacturing high-performance cleaning agents due to its optimized molecular structure and environmental compliance. With a linear alkyl chain (C10–C14) sulfonated at the benzene ring, it offers superior biodegradability (>90% in 28 days, OECD 301E) compared to branched analogues.

Technical Specifications

• Purity: 96% active content, ≤1.5% unsulfonated oil

• Physical State: Clear amber viscous liquid (viscosity: 1,200–1,500 cP at 25°C)

• Acidity: Strong acid (pH 1.5–2.5 in 1% aqueous solution)

• Thermal Stability: Decomposes above 210°C without flash point (non-flammable)

• Solubility: Fully miscible in water (exothermic), limited solubility in nonpolar solvents

Industrial Applications

1. Heavy-Duty Detergents:

   • Primary component in industrial laundry powders (18–22% formulation), removing particulate soils and grease at low dosages (0.5–1.2 g/L).

   • Synergizes with sodium carbonate to boost alkalinity, achieving 95% oil removal efficiency in cold water (20°C).

2. Enhanced Oilfield Chemicals:

   • Lowers interfacial tension in ASP flooding systems to 10⁻³ mN/m at 0.3% concentration, improving crude oil recovery by 15–20%.

   • Compatible with polymer drives (e.g., xanthan gum) for stable emulsion breaking.

3. Agrochemical Emulsifiers:

   • Stabilizes glyphosate formulations (40% SL) with HLB 11–13, preventing crystallization at <5°C.

   • Reduces droplet size in herbicide emulsions to <5 μm (D90), enhancing foliar adhesion.

4. Textile Processing:

   • Scouring agent for raw cotton, removing 98% of natural waxes at 80°C with 4% dosage.

   • Minimizes fiber damage (≤0.5% tensile strength loss) versus traditional alkali treatments.

LABSA 96% (Dodecylbenzene sulfonic acid)exemplifies the evolution of surfactant chemistry, balancing cost-efficiency with regulatory demands for eco-friendly, linear alkyl chain derivatives. Its role in circular economy initiatives—enabling phosphate-free detergents and low-temperature washing—positions it as a cornerstone of sustainable industrial chemistry.