Description

Dioctyl Tetrasulphide is a high-purity organic sulfur compound, widely recognized as a critical vulcanization accelerator and sulfur donor in the rubber industry. Its primary value lies in its ability to significantly enhance the cross-linking efficiency and aging resistance of elastomers, leading to superior product durability. This chemical is essential for manufacturers in the automotive, industrial hose, and specialty rubber goods sectors seeking to optimize their curing processes and final material properties.

Application

• As a sulfur donor and secondary accelerator in the vulcanization of natural rubber (NR), synthetic rubber (SBR, NBR, EPDM), and their blends.
• To improve the heat resistance and reversion resistance of thick rubber articles, ensuring consistent curing throughout the product.
• In the formulation of high-performance rubber seals, gaskets, and O-rings for demanding automotive and industrial applications.
• As a key additive in the production of conveyor belts, hoses, and vibration dampeners to extend service life under stress.
• For the manufacture of cable sheathing and insulation to enhance electrical properties and environmental stability.
• In specialty applications as a sulfur-based intermediate for chemical synthesis and lubricant additive formulations.

Basic Information

Product Name	Dioctyl Tetrasulphide
CAS No.	4115-50-8
Molecular Formula	C16H34S4
Molecular Weight	354.7 g/mol
Synonyms	DOTG (Tetrasulphide); Dioctyl Tetrasulfide; Bis(2-ethylhexyl) Tetrasulfide; 2-Ethylhexyl Tetrasulfide; Vulcanization Accelerator DOTG; Sulfur Donor Agent; Octyl Tetrasulphide; Tetraoctyl Thiuram Tetrasulfide
EINECS	223-918-0

Quality Control

Our Dioctyl Tetrasulphide is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and physical property verification, to meet exacting industry specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment 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). Keep away from strong oxidizing agents, strong acids, and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Sulfur Content	Contact for details
Specific Gravity (20°C)	0.98 - 1.02
Refractive Index (20°C)	1.50 - 1.52

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