TDEC (Tellurium Diethyldithiocarbamate) is a dithiocarbamate-class rubber accelerator supplied in powder form, identified by CAS No. 20941-65-5. It is widely used across the rubber processing industry as an ultra-fast/super accelerator for natural rubber (NR) and synthetic rubber compounds including SBR, NBR, EPDM, and butyl rubber. TDEC is typically used in combination with thiazole, sulfenamide, or thiuram-class accelerators, where it functions as an activator to increase overall cure velocity at vulcanizing temperature. Its dithiocarbamate structure allows it to promote rapid crosslinking, making it suitable for applications requiring quick cure cycles.
| Parameter | Value |
| Chemical Name | Tellurium Diethyldithiocarbamate |
| CAS No. | 20941-65-5 |
| Molecular Formula | C₂₀H₄₀N₄S₈Te |
| Molecular Weight | ~720–721 g/mol |
| Chemical Type | Dithiocarbamate Rubber Accelerator |
| Appearance | Yellow powder |
| Form Supplied | Powder |
| Solubility | Soluble in chloroform, benzene, carbon disulfide; slightly soluble in alcohol and gasoline; insoluble in water |
| Shelf Life | 12 – 24 months (varies by manufacturer), when stored as recommended |
The above specifications are provided for reference purposes only. For precise and up-to-date technical details, please contact our marketing team.
Typical dosage reported across manufacturer literature ranges from approximately 0.1 to 1.0 phr (parts per hundred rubber) for powder-form product, with some sources indicating a range up to 2.0% depending on product form (e.g., oil-treated powder) and polymer system. Butyl rubber compounds may require dosage adjustment for optimal results.
Recommended dosage may vary based on formulation and processing conditions. Users should verify dosage before commercial use.
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Store in a cool, dry, and well-ventilated area, away from direct sunlight, in tightly closed original packaging. Avoid exposure to moisture and heat sources. Handle using standard industrial chemical handling practices, including use of appropriate personal protective equipment (PPE). Refer to the Safety Data Sheet (SDS) for detailed handling, exposure, and first-aid information prior to use.
Information compiled from publicly available manufacturer technical datasheets and product literature, including Akrochem Corporation, Anyang General Chemical, Western Reserve Chemicals (WESTCO), Puyang Willing Chemicals, and other industry sources referencing CAS No. 20941-65-5.
Disclaimer: We are independent dealers and are not associated with the manufacturer. The information provided is compiled from official manufacturer datasheets and independent research. Users must evaluate product suitability and applicability before use.
Lab Line Enterprises supplies TDEC (Tellurium Diethyldithiocarbamate) rubber accelerator, CAS No. 20941-65-5, to rubber processing units across India. As an ISO 9001:2015 certified enterprise, we maintain consistent quality documentation and traceability for all supplied materials. TDEC is offered in standard 25 kg packs, with small trial and R&D pack sizes of 1 kg available on request for formulation testing before bulk procurement. The product finds regular use among rubber compounders and tire component manufacturers in industrial hubs such as Mumbai, Delhi, Ahmedabad, Chennai, Kolkata, and Ludhiana. TDS and SDS documentation are available on request to support formulation evaluation and safety compliance.
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