Description

Dibenzoyl Pertetrasulfide is a specialized organosulfur compound with the CAS registry number 59275-85-3, functioning as a critical vulcanizing agent and accelerator in polymer chemistry. Its unique polysulfide structure enables efficient cross-linking of rubber and elastomer chains, significantly enhancing the durability, elasticity, and thermal stability of the final material. This high-performance additive is essential for manufacturers in the rubber, tire, and specialty polymer industries seeking to optimize their product formulations for demanding applications.

Application

• Primary vulcanizing agent and co-agent in the production of synthetic rubbers (e.g., Nitrile, EPDM, SBR).
• Key component in tire manufacturing to improve tread wear, heat resistance, and overall tire longevity.
• Cross-linking agent for specialty elastomers used in automotive seals, hoses, and vibration-damping components.
• Processing aid in the manufacture of industrial rubber goods such as conveyor belts, gaskets, and rollers.
• Used in the formulation of high-performance adhesives and sealants requiring enhanced flexibility and chemical resistance.
• Acts as a sulfur donor in dynamic vulcanization processes for thermoplastic vulcanizates (TPVs).

Basic Information

Product Name	Dibenzoyl Pertetrasulfide
CAS No.	59275-85-3
Molecular Formula	C14H10O2S4
Molecular Weight	354.48 g/mol
Synonyms	Benzoyl Polysulfide; Dibenzoyl Tetrasulfide; Tetrasulfurocarbonyl Dibenzene; Vulcanizing Agent DTDM; 1,1'-Dibenzoyl Tetrasulfane; N,N'-Dithiodibenzamide Polysulfide; Accelerator TBzTD; Benzoperoxide Tetrasulfide
EINECS	Contact for details

Quality Control

Our Dibenzoyl Pertetrasulfide is manufactured under stringent quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is subjected to comprehensive analytical testing, including assay, melting point determination, and impurity profiling. A detailed Certificate of Analysis (COA) documenting purity and key physical-chemical parameters 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 a controlled room temperature (15-25°C). This material is easily oxidized and should be kept under an inert atmosphere or in sealed packaging to minimize contact with air and moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Light yellow to pale brown powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Melting Point	115 - 125 °C
Sulfur Content	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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