Description

Benzenesulfonic Acid, C14-24-Branched And Linear Alkyl Derivs., Calcium Salts, Overbased is a high-performance, oil-soluble calcium sulfonate complex widely used as a detergent and dispersant additive. This overbased compound provides exceptional acid neutralization capacity and detergency, which is critical for maintaining engine cleanliness and preventing deposit formation under severe operating conditions. It is an essential component for formulators in the lubricant and grease industries seeking to enhance product performance and longevity.

Application

• Lubricant Additives: Primary application as a high-alkalinity detergent and dispersant in engine oils (e.g., marine diesel, heavy-duty diesel) to neutralize acidic combustion by-products and suspend soot particles.
• Grease Manufacturing: Key component in the production of complex calcium sulfonate greases, providing extreme pressure (EP) properties, corrosion resistance, and high dropping points.
• Metalworking Fluids: Used as an emulsifier and corrosion inhibitor in industrial lubricants and metal processing fluids.
• Rust Preventives: Formulated into protective oils and coatings to provide long-term corrosion protection for metal parts and machinery.
• Industrial Cleaners & Degreasers: Acts as a surfactant and emulsifying agent in heavy-duty industrial cleaning formulations.
• Fuel Additives: Employed in diesel fuel additives to control injector fouling and deposit formation.

Basic Information

Product Name	Benzenesulfonic Acid, C14-24-Branched And Linear Alkyl Derivs., Calcium Salts, Overbased
CAS No.	115733-10-3
Molecular Formula	Complex mixture; typically represented as (R-C6H4-SO3)2Ca • xCaCO3 where R = C14-24 alkyl
Molecular Weight	Contact for details (Complex mixture)
Synonyms	Overbased Calcium Alkylbenzene Sulfonate; Calcium Alkyl Aryl Sulfonate, Overbased; High TBN Calcium Sulfonate; Calcium Sulfonate Detergent; Overbased C14-24 Alkylbenzene Sulfonic Acid Calcium Salt; TBN 300-400 Calcium Sulfonate; Lubricant Detergent Calcium Sulfonate; Complex Calcium Sulfonate Grease Thickener
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, C14-24-Branched And Linear Alkyl Derivs., Calcium Salts, Overbased is manufactured under a strict quality management system. Each batch is tested against key performance parameters including Total Base Number (TBN), calcium content, viscosity, and sulfated ash to ensure consistency and compliance with industry specifications such as those from the American Society for Testing and Materials (ASTM). Certificates of Analysis (COA) detailing these results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is between 15°C and 30°C (59°F and 86°F). Keep container tightly sealed when not in use to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Clear, viscous brown liquid
Total Base Number (TBN), mg KOH/g	300 - 400
Calcium Content, % wt	12.0 - 16.0
Kinematic Viscosity @ 100°C, cSt	300 - 600
Sulfated Ash, % wt	Contact for details
Density @ 20°C, g/mL	1.10 - 1.30
Flash Point, °C	> 180
Moisture (Karl Fischer), % wt	< 0.5

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