What is 4,4′-Dithiodimorpholine CAS 103-34-4?
4,4′-Dithiodimorpholine CAS 103-34-4 (often called “DTDM”) is manufactured industrially — typically appearing as a white to off-white crystalline powder — and serves not as an end-use product but as a reactive additive in rubber and polymer formulations; when added to natural or synthetic rubber compounds, it assists in generating active sulfur under vulcanization conditions, thereby enabling controlled crosslinking and enhanced performance of final rubber goods.
Specification
| Item |
Value |
| Melting Point |
124-125°C |
| Boiling Point |
371.7±52.0 °C(Predicted) |
| Density |
1.32~1.38g/cm3 |
| Color |
White to Almost white |
| Form |
powder to crystaline |
| pka |
0.78±0.20(Predicted) |
| Storage Temp. |
Refrigerator |
Feature
- Sulfur donor: Provides sulfur for crosslink formation during vulcanization, enabling effective curing of rubber formulations.
- Accelerating agent: Speeds up vulcanization reactions in rubber, especially in semi-efficient or efficient sulfur cure systems.
- Heat/aging resistant: Helps improve heat resistance, aging resistance, and long-term stability of vulcanized rubber products.
- Non-blooming additive: When used in proper amounts, DTDM does not tend to migrate (“bloom”) to the rubber surface, preserving aesthetic and functional integrity.
Application
- Rubber vulcanization: Widely used in natural and synthetic rubber compounds (tires, hoses, belts, rubber sheets) as a sulfur donor and cure accelerator to produce durable, resilient vulcanizates.
- Elastomer products: Employed in manufacturing of heat-resistant and age-resistant elastomeric parts for automotive, industrial, and consumer applications.
- Asphalt modification: Used as an additive (in combination with other sulfur-donors) to improve high-temperature storage stability and thermal oxidative aging resistance of SBS-modified asphalt materials.
- Polymer crosslinking: Utilized in polymer or composite formulations requiring controlled sulfur crosslinking or enhanced thermal/mechanical durability.
Packaging
Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.