Description

Di-n-Octadecyl Disulfide is a high-molecular-weight organic disulfide compound, recognized for its role as an effective lubricant additive and antioxidant. This specialty chemical is valued for its ability to reduce friction, prevent wear, and enhance the thermal stability of formulations. It is primarily utilized by manufacturers in the lubricants, polymers, and specialty chemicals industries seeking to improve product performance and longevity.

Application

• Lubricant & Grease Additive: Functions as an extreme pressure (EP) and anti-wear agent in industrial oils, gear oils, and metalworking fluids.
• Polymer Stabilizer: Acts as an antioxidant and secondary stabilizer in polyolefins and other polymers to prevent thermal degradation during processing.
• Vulcanization Agent: Used as a sulfur donor in the vulcanization process for certain specialty rubbers.
• Friction Modifier: Imparts surface-active properties to reduce friction and improve fuel economy in engine oils.
• Chemical Intermediate: Serves as a building block in organic synthesis for the production of other sulfur-containing compounds.
• Corrosion Inhibitor: Provides protective properties in lubricant and grease formulations for metal surfaces.

Basic Information

Product Name	Di-n-Octadecyl Disulfide
CAS No.	2500-88-1
Molecular Formula	C36H74S2
Molecular Weight	571.1 g/mol
Synonyms	Distearyl Disulfide; Dioctadecyl Disulfide; n-Octadecyl Disulfide; Bis(octadecyl) Disulfide; 1,1'-Dioctadecyl Disulfide; Dioctadecyl Disulphide; Distearyl Disulphide; L-18
EINECS	219-710-6

Quality Control

Our Di-n-Octadecyl Disulfide is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity and performance. A Certificate of Analysis (COA) detailing key parameters is provided to guarantee consistency and reliability for your industrial applications.

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). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white waxy solid / Flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Melting Point	55 - 65 °C
Sulfur Content	10.5 - 11.5 %

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