DBSA - Dodecyl Benzene Sulphonic Acid (LABSA)

Dodecyl benzene sulphonic acid (DBSA)

Technical grade

Dodecylbenzene Sulphonic Acid (DBSA or LABSA) is a widely used anionic surfactant and detergent intermediate. It is an organic acid derived from linear alkylbenzene (LAB) sulfonation, typically with a dodecyl (C12) alkyl chain, hence the name.

The sulphonic acid group provides strong negative charge → excellent cleaning, wetting, and foaming power. The linear dodecyl group provides compatibility with biodegradation, making LABSA more environmentally acceptable than older branched-chain versions.

• CAS No: 27176-87-0 / 85536-14-7
• Other names: Dodecyl benzene sulfonic acid, NA, DBSA, LABSA, DDBSA
• Purity: 96%
• Appearance: thick brown liquid
• Mol formula: CH₃(CH₂)₁₁C₆H­₄SO₃H
• Structural formula: R-C₆H₄-SO₃H

Uses for Dodecyl benzene sulphonic acid:

1. Detergent & Cleaning Formulations

• Main raw material in manufacturing household and industrial detergents after neutralization with an alkali (e.g. sodium hydroxide, ammonia, or triethanolamine)

• Used in:

  • Laundry liquids and powders

  • Dishwashing liquids

  • Toilet and surface cleaners

  • Car wash and truck wash chemicals

2. Emulsifiers and Wetting Agents

• In agrochemical formulations (e.g. herbicides) to improve emulsification of oils

• In textile and leather processing for scouring and wetting

3. Industrial Applications

• Degreasing and defoaming agents

• Oil field chemicals and drilling fluids