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Barium Petroleum Sulfonate is an oil-soluble detergent additive widely used in lubricating oils and greases to enhance engine cleanliness and performance. It belongs to the class of sulfonate detergents which neutralize acidic by-products, prevent deposits, and improve the dispersing properties of lubricants.

• Chemical Nature: Metal sulfonate salt (barium salt of petroleum sulfonic acid)

• Appearance: Dark brown to black viscous liquid or semi-solid paste

• Solubility: Soluble in hydrocarbon oils and compatible with petroleum-based lubricants

• pH: Typically alkaline, helps neutralize acidic combustion products

• Molecular Weight: Varies depending on formulation, generally high molecular weight surfactants

1. Detergency:
   Keeps engine parts clean by dispersing sludge, varnish, and deposits.

2. Neutralization:
   Neutralizes acidic compounds formed during fuel combustion, reducing corrosion and wear.

3. Anti-Corrosion:
   Protects metal surfaces (e.g., pistons, cylinder walls) from acidic attack.

4. Dispersancy:
   Keeps insoluble contaminants suspended in the oil, preventing sludge buildup.

5. Engine Protection:
   Helps extend engine life by maintaining oil cleanliness and reducing harmful deposits.

• Heavy-duty engine oils (diesel and gasoline engines)

• Industrial lubricants

• Gear oils and hydraulic oils

• Marine and aviation lubricants

Powerful Corrosion Inhibitor & Surface-Active Agent

Product Description:
Barium Petroleum Sulfonate is a high-performance, oil-soluble surfactant and corrosion inhibitor derived from petroleum sulfonic acids neutralized with barium. It exhibits excellent film-forming properties and strong polar attraction to metal surfaces, providing superior protection against rust and corrosion in a wide range of lubricant and coating applications.

This additive functions both as a primary corrosion inhibitor and as an effective emulsifier and dispersant in industrial formulations. It is especially suitable for use in greases, rust preventive oils, metalworking fluids, and undercoating formulations where long-term protection and water resistance are critical.

Key Features:

• ✅ Excellent Rust and Corrosion Protection: Forms a persistent, hydrophobic barrier on metal surfaces

• ✅ Outstanding Film Adhesion: Strong metal affinity ensures long-lasting surface protection

• ✅ Detergent & Emulsifying Action: Helps stabilize water-in-oil emulsions and disperse contaminants

• ✅ Thermal Stability: Performs effectively in high-temperature grease and lubricant formulations

• ✅ Oil-Soluble & Easy to Blend: Compatible with mineral oils and synthetic base fluids

Effective Corrosion Inhibitor and Detergent Additive

Product Description:
Barium Petroleum Sulfonate is an oil-soluble sulfonate salt widely used as a corrosion inhibitor, detergent, and emulsifying agent in lubricant and grease formulations. It provides excellent rust protection by forming a durable, hydrophobic film on metal surfaces, preventing moisture and contaminants from causing corrosion.

This additive is highly effective in metalworking fluids, rust preventive oils, greases, and industrial lubricants, enhancing the product’s stability and performance in challenging environments.

Key Features:

• Strong corrosion and rust protection

• Superior detergent and emulsifying properties

• Excellent thermal stability in high-temperature applications

• Oil-soluble and compatible with mineral and synthetic base oils

• Enhances lubricant and grease performance

Barium Petroleum Sulfonate is a type of metal sulfonate compound, commonly used in lubricants, rust preventives, and detergents—especially in the oil and gas and automotive industries.

Key Properties:

Surfactant: Acts as a surface-active agent.

Corrosion Inhibitor: Protects metal surfaces from rust and oxidation.

Dispersant: Helps suspend particles in oil formulations.

Oil Solubility: Soluble in petroleum-based oils.

Applications:

Rust preventive oils and coatings

Greases and lubricants

Fuel additives

Metalworking fluids

Abbreviation:

As noted earlier, a common abbreviation is BaPS.

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