Naphthalene Sulfonate (C₇H₁₁O₂)

What is Naphthalene Sulfonate?

Naphthalene sulfonate is a derivative of naphthalene sulfonic acid and is commonly used as a surfactant.

Key features:

It is soluble in water.
Reduces surface tension, increases foam formation.
When used as a concrete additive, it accelerates the hardening process and increases durability.
It is widely preferred in pigment dispersion and the formulation of agricultural chemicals.

Property	Explanation
Physical State	Colorless, odorous liquid
Chemical Formula	C₇H₁₁O₂
Molecular Weight	128.12 g/mol
Packaging Type	Tanker
Resolution	Water-soluble
Key Features	Surface activity, dispersion, concrete additive, strength enhancer

Surface-Active Agents Industry
- Surfactant in cleaning products such as detergent, dishwashing detergent, liquid soap, shampoo
Concrete and Construction Industry
- Used as a concrete additive
- Accelerates the hardening process, increases durability
Agricultural Industry
- Binder and dispersing agent in the formulation of pesticides and agricultural chemicals
Paint and Printing Industry
- In pigment dispersion, it ensures the homogeneous distribution of paints.
Petroleum Industry
- Used in drilling fluids and lubricant formulations in oil exploration and production
Pharmaceutical Industry
- Solubility-enhancing additive in some drugs
Chemical Industry
- Reactive production and as an intermediate product in the polymer industry

The production of naphthalene sulfonate consists of several stages:

Sulfonation Process
- Naphthalene is reacted with sodium bisulfate or sodium sulfate.
- This reaction adds a sulfonic acid group to the naphthalene molecule.
Neutralization
- The resulting sulfonic acid derivatives are neutralized with sodium hydroxide (NaOH) or sodium carbonate (Na₂CO₃).
Final Product
- The water-soluble naphthalene sulfonate obtained is used in various industries as a surfactant, dispersant, and concrete additive.