Description

Dipentamethylenethiuram Hexasulfide is a high-performance sulfur donor and ultra-accelerator used in the vulcanization of rubber. This compound is valued for its ability to provide efficient crosslinking and enhance the thermal stability and aging resistance of the final elastomer product. It is a critical component for manufacturers in the tire, industrial hose, belt, and seal industries seeking to optimize their curing processes and material properties.

Application

• Primary ultra-accelerator and sulfur donor in the vulcanization of natural rubber (NR) and synthetic rubbers like SBR and NBR.
• Manufacture of high-performance tires requiring excellent heat resistance and durability.
• Production of industrial rubber goods such as conveyor belts, hoses, and seals.
• Used in rubber compounds for automotive parts like engine mounts and vibration dampers.
• Formulation of rubber-based adhesives and sealants.
• Enhancement of reversion resistance in thick-section rubber articles.

Basic Information

Product Name	Dipentamethylenethiuram Hexasulfide
CAS No.	971-15-3
Molecular Formula	C12H20N2S8
Molecular Weight	489.86 g/mol
Synonyms	Dipentamethylenethiuram Tetrasulfide; DPTT; Tetrasulfiram; Tetrone A; N,N-Pentamethylenethiuram Tetrasulfide; Bis(pentamethylene)thiuram Tetrasulfide; Accelerator DPTT; Vulcanizing Agent DPTT; Perkacit DPTT; Vulkacit Thiuram MS/G
EINECS	213-548-1

Quality Control

Our Dipentamethylenethiuram Hexasulfide 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, melting point determination, and ash content analysis. A Certificate of Analysis (COA) detailing all specifications 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Light yellow to pale gray powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 97.0%
Melting Point	110°C - 120°C
Ash Content	≤ 0.5%
Moisture (Karl Fischer)	≤ 0.5%
Sieve Residue (100 mesh)	≤ 1.0%

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