Description

Di-tert-Butyl Heptasulphide is a specialized organosulfur compound with the CAS number 7330-34-9, primarily utilized as a high-performance vulcanization agent and sulfur donor in polymer chemistry. Its unique heptasulfide chain structure provides controlled sulfur release, which is critical for enhancing the cross-linking efficiency and thermal stability of elastomers. This product is essential for manufacturers in the rubber and specialty polymer industries seeking to optimize cure characteristics and improve the aging resistance of their final products.

Application

• Rubber Vulcanization: Acts as a key sulfur donor and accelerator in the vulcanization of various synthetic and natural rubbers, improving cross-link density and mechanical properties.
• Polymer Modification: Used as a cross-linking agent and modifier for specialty polymers to enhance thermal stability and chemical resistance.
• Lubricant & Fuel Additives: Serves as an extreme pressure (EP) additive and anti-wear agent in advanced lubricant formulations and industrial fuels.
• Chemical Synthesis: Functions as a sulfur-transfer reagent in organic synthesis for introducing sulfur-containing functional groups.
• Sealant & Adhesive Production: Incorporated into formulations to improve the curing profile and durability of high-performance sealants and adhesives.

Basic Information

Product Name	Di-tert-Butyl Heptasulphide
CAS No.	7330-34-9
Molecular Formula	C8H18S7
Molecular Weight	354.73 g/mol
Synonyms	Di-tert-butyl heptasulfide; Bis(1,1-dimethylethyl) heptasulfide; Heptasulfane, 1,1,7,7-tetra-tert-butyl-; tert-Butyl heptasulfide; Sulfur donor TBHS; Vulcanizing agent TBHS; DTBS; 1,1,7,7-Tetra-tert-butylheptasulfane
EINECS	Contact for details

Quality Control

Our Di-tert-Butyl Heptasulphide is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay by titration and impurity profile analysis, to meet precise customer specifications. A Certificate of Analysis (COA) detailing purity, identity, and other critical 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 product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain stability and prevent degradation. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	Yellow to light brown liquid
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 95.0 %
Sulfur Content	Contact for details
Density (at 20°C)	~1.10 g/cm³
Refractive Index (n20/D)	Contact for details

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