Tetramethylthiuram disulfide (TMTD), CAS 137-26-8, also known as thiram, is a thiuram ultra-accelerator and a sulfur-donor vulcanising agent used in natural and synthetic rubber. PolyBlueChem supplies TMTD to rubber and adhesive customers with per-batch COA and SDS.
Specifications
| Property | Specification |
|---|---|
| Appearance | White or light-grey powder or granules |
| Melting point | 142 deg C min |
| Loss on heating | 0.4% max |
| Ash | 0.3% max |
| Residue on 150 um sieve | 0% (fully passing) |
Basic Information
| CAS number | 137-26-8 |
| Molecular formula | C6H12N2S4 |
| Molecular weight | 240.43 g/mol |
| Synonyms | TMTD, thiram, tetramethylthiuram disulphide |
Applications
- Ultra-accelerator – a thiuram accelerator with a very fast cure, often used as a secondary accelerator with thiazoles.
- Sulfur donor – used in low-sulfur and sulfurless (EV / semi-EV) vulcanisation systems.
- Adhesives and latex – vulcanising agent in rubber-to-metal bonding and latex compounds.
- Industrial uses – as a component in lubricants and in industrial biocidal applications.
Packaging and documentation
- 25 kg PP/PE bags and 1000 kg jumbo bags; palletised for container shipment.
- Per-batch certificate of analysis (COA) and safety data sheet (SDS).
- Keep sealed and dry; store away from oxidising agents.
PolyBlueChem supplies tetramethylthiuram disulfide (TMTD, CAS 137-26-8) against this specification, with COA and SDS per batch and FOB/CIF delivery. Contact us with your tonnage and delivery port for a quotation.




