Tellurium diethyldithiocarbamate

Tellurium diethyldithiocarbamate (CAS 20941-65-5) is an organometallic compound commonly identified by the abbreviations TDEC and TeEDC, and sold under trade names including Tellurac. It carries no assigned E-code. With the molecular formula C20H40N4S8Te, it belongs to the dithiocarbamate family of metal complexes.

In rubber manufacturing, TDEC functions as an ultra-accelerator for sulfur vulcanization, activating crosslink formation at lower temperatures and shorter cure times than conventional accelerators. It is also applied as a catalyst and polymerization initiator in polymer processing, where the tellurium centre coordinates with reactive intermediates to drive chain growth or network formation.

TDEC is supplied as a solid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier SDS documentation and substance registration status prior to ordering. Packaging formats vary by supplier; buyers are advised to request specifications directly.