Sodium Alkyl Naphthalene Sulphonate Powder

Sodium alkyl naphthalene sulphonate powder, also known as sodium alkyl naphthalene sulfonate or sodium alkyl naphthalene sulfonate formaldehyde condensate (SNF), is a type of synthetic dispersing agent and surfactant. It is commonly used in various industries, including the leather industry.

In leather tanning, sodium alkyl naphthalene sulphonate powder is often used as a wetting and dispersing agent. It helps to improve the penetration and distribution of tanning agents and other chemicals in the leather, ensuring uniform processing and desired tanning effects. It can also aid in the suspension of pigments and dyes, enhancing their color properties.

Sodium alkyl naphthalene sulphonate powder is typically added to the tanning bath or used as a pretreatment agent before the actual tanning process. Its use can help improve the overall quality and performance of the leather by enhancing the absorption and uniformity of the tanning agents and other chemicals used.

CAS No.: 25417-20-3


Concrete admixture, ceramic batch, thickening agent, dust suppressant etc.
Textile industry: Used as wetting agents, leveling agents, and dye dispersants in dyeing and finishing processes.
Detergents and cleaners: Employed as surfactants in household and industrial cleaners, dishwashing liquids, and laundry detergents.
Concrete admixtures: Added to concrete mixes to improve workability, dispersibility, and air entrainment.
Oil and gas industry: Used as emulsifiers, wetting agents, and dispersants in drilling fluids and enhanced oil recovery processes.
Paints and coatings: Incorporated as wetting agents, dispersants, and emulsifiers in various paint formulations.

Typical Properties

1.Powder Form
Property Value
Appearance White/Beige Powder
Active Content (%) 60-80
pH (10% solution) 5-8
Bulk Density (g/ml) 0.50-0.70
Loss on Drying (%) ≤10
Sulfate Content (%) 15-30
Water Solubility Excellent
2.Liquid Form
Property Value
Appearance Liquid, dark brown
Active Content (%) 60-80
pH (10% solution) 5-8
Viscosity (at 25°C, mPa.s) 200-1000
Density (at 25°C, kg/L) 1.10-1.30
Flash Point (°C) >100
Solubility in Water Soluble
Sulfate Content (%) 15-30


Excellent dispersing and calcium binding properties
Improves workability and strength of concrete
Imparts thixotropic property to solutions
Thermally stable up to 200°C
Easy to handle, store and transport

Packaging: PP bags, 25 kg net weight; CP bags, 500 kg net weight


Store in a dry cool place, protected from direct sunlight. Shelf life is 1 year if stored properly.
Safety: Non-hazardous powder. Avoid dust inhalation and direct contact. Wear dust mask and gloves while handling.