Description

Benzenesulfonic Acid, Mono-C15-30-Branched Alkyl And Di-C11-13-Branched And Linear Alkyl Derivs., Calcium Salts, Overbased is a specialized, high-performance metal sulfonate additive engineered for demanding industrial applications. This overbased calcium sulfonate functions as a powerful detergent and acid neutralizer, providing exceptional alkalinity reserve and thermal stability to protect equipment. It is a critical component for formulators in the lubricant and fuel additive industries, where it is used to prevent deposit formation, neutralize corrosive acids, and extend the operational life of engines and machinery.

Application

• Lubricant Additive: Primary application as a high-alkalinity detergent and dispersant in engine oils (marine, automotive, heavy-duty) and industrial lubricants to control sludge, varnish, and neutralize acidic combustion by-products.
• Fuel Additive: Used in diesel and gasoline formulations to prevent injector fouling, port deposits, and to neutralize acidic components that cause corrosion in fuel systems.
• Metalworking Fluids: Incorporated as a stabilizer and corrosion inhibitor in synthetic and semi-synthetic metalworking fluids to protect ferrous metals and maintain fluid integrity.
• Grease Thickener/Stabilizer: Acts as a component in complex calcium sulfonate greases, providing excellent water resistance, extreme pressure (EP) properties, and rust prevention.
• Industrial Cleaners & Degreasers: Serves as a surfactant and emulsifying agent in heavy-duty industrial cleaning formulations for machinery and parts.
• Rust Preventative Compounds: Used in coatings and temporary protectants to provide a barrier against moisture and corrosion on metal surfaces.

Basic Information

Product Name	Benzenesulfonic Acid, Mono-C15-30-Branched Alkyl And Di-C11-13-Branched And Linear Alkyl Derivs., Calcium Salts, Overbased
CAS No.	71486-79-8
Molecular Formula	Complex Mixture (Contact for details)
Molecular Weight	Complex Mixture (Contact for details)
Synonyms	Overbased Calcium Alkylbenzene Sulfonate; Calcium Alkyl Aryl Sulfonate, Overbased; High TBN Calcium Sulfonate; Calcium Sulfonate Detergent; C15-30 Alkyl Benzene Sulfonic Acid Calcium Salt; Synthetic Calcium Sulfonate; Lubricant Detergent Additive; Lube Oil Detergent
EINECS	Contact for details

Quality Control

Our overbased calcium sulfonate is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as Total Base Number (TBN), calcium content, viscosity, and sulfated ash are rigorously tested. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Brown, viscous liquid
Total Base Number (TBN), mg KOH/g	Contact for details
Calcium Content, wt%	Contact for details
Kinematic Viscosity @ 100°C, cSt	Contact for details
Sulfated Ash, wt%	Contact for details
Density @ 20°C, g/mL	Contact for details
Flash Point, °C	> 180

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.