Description

Calcium Octadecylbenzenesulphonate is a calcium salt of a long-chain alkylbenzene sulfonic acid, functioning as a versatile anionic surfactant and emulsifier. This compound is valued for its excellent surface-active properties, providing effective wetting, dispersing, and detergency in demanding industrial formulations. It is primarily utilized in the production of lubricating oil additives, industrial cleaning agents, and as a key component in various emulsion polymerization processes.

Application

• Primary component in the synthesis of overbased calcium sulfonate detergents for lubricating oils and greases.
• Emulsifier and stabilizer in the production of polymer emulsions, including styrene-butadiene and acrylic systems.
• Active ingredient in high-performance industrial and institutional (I&I) cleaning formulations and degreasers.
• Dispersing agent for pigments, fillers, and solid additives in coatings and composite materials.
• Intermediate in the manufacture of other specialty surfactants and sulfonate derivatives.
• Additive in agricultural chemical formulations to improve the spreading and adhesion of active ingredients.

Basic Information

Product Name	Calcium Octadecylbenzenesulphonate
CAS No.	36250-83-6
Molecular Formula	C36H58CaO6S2 (for the di-salt)
Molecular Weight	691.07 g/mol (for the di-salt)
Synonyms	Calcium Dodecylbenzenesulfonate (C18); Calcium Stearylbenzenesulfonate; Octadecylbenzenesulfonic Acid Calcium Salt; Calcium Alkylbenzene Sulfonate (C18); Surfactant AS-Ca; ABS-Ca (Alkyl Benzene Sulfonate Calcium); Detergent Alkylate Calcium Sulfonate
EINECS	Contact for details

Quality Control

Our Calcium Octadecylbenzenesulphonate is manufactured under a stringent quality management system. Each batch is analyzed to ensure consistent composition, purity, and performance characteristics relevant to its target applications, such as sulfonate content, calcium content, and neutralization number. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to brown viscous paste or solid
Identification (IR)	Conforms
Active Matter (as Sulfonate)	≥ 90 %
Calcium Content	Contact for details
Moisture Content	≤ 2.0 %
pH (1% Solution)	6.0 - 8.5

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