72676-55-2

Basic information

• Product Name: 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione
• Synonyms: 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione;1,3,4-Thiadiazole-2(3H)-thione, 5,5-dithiobis-;5,5''-Dithiobis-1,3,4-thiadiazole-2(3H)-thione;2，5-dimercapto-1,3,4-thiadiazole dimer;2,5-dimercapto-1,3,4-thiadiazole dimmer;2,2'-Dithiobis(1,3,4-thiadiazole-5-thiol);5,5'-Dithiobis(2-mercapto-1,3,4-thiadiazole);Bis(2-mercapto-1,3,4-thiadiazole-5-yl) persulfide
• CAS NO: 72676-55-2
• Molecular Formula: C₄H₂N₄S₆
• Molecular Weight: 298.47548
• EINECS: 276-763-0
• Product Categories: metallic surface additive;rubber additive;rubber auxiliary;special rubber additive;lubricant antioxidant additive, metallic antioxidant;extreme antiwear additive
• Mol File: 72676-55-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 440.9 °C at 760 mmHg
• Flash Point: 220.4 °C
• Appearance: /
• Density: 2.22
• Vapor Pressure: 0Pa at 25℃
• Water Solubility: 167mg/L at 25℃
• CAS DataBase Reference: 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione(CAS DataBase Reference)
• NIST Chemistry Reference: 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione(72676-55-2)
• EPA Substance Registry System: 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione(72676-55-2)

Safety Data

• Hazardous Substances Data: 72676-55-2(Hazardous Substances Data)

Usage

Description

5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione is a chemical compound known for its unique properties and versatile applications across various industries. It is characterized by its ability to act as a vulcanizing agent, crosslinking agent, and additive for metallic surfaces, making it a valuable component in the manufacturing and processing of certain materials.

Uses

Used in Rubber Industry:
5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione is used as a rubber vulcanizing agent for chlorinated polyethylene (CPE) rubber. It enhances the rubber's properties, such as strength, elasticity, and durability, by facilitating the crosslinking process between polymer chains.
Used in Rubber Crosslinking:
As a rubber crosslinking agent, 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione plays a crucial role in improving the overall performance of rubber products. It helps in creating a network of chemical bonds between polymer chains, resulting in increased stability and resistance to deformation.
Used in Metallic Surface Treatment:
5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione is also utilized as an additive for metallic surfaces. It contributes to the enhancement of surface properties, such as corrosion resistance, wear resistance, and adhesion, making it suitable for various applications in the metalworking and manufacturing industries.
Used in Cured Chlorinated Polyethylene (CPE):
In the production of cured CPE, 5,5'-dithiodi-1,3,4-thiadiazole-2(3H)-thione is employed to improve the material's performance characteristics. It aids in the vulcanization process, leading to a more robust and reliable end product with enhanced mechanical properties and resistance to environmental factors.

Flammability and Explosibility

Nonflammable

Upstream product

• 1072-71-5 1,3,4-thiadiazolidine-2,5-dithione 

Relevant articles and documents

THE PHOTOLYSIS OF 1,3,4-THIADIAZOLIDINE-2,5-DITHIONES IN PRESENCE AND IN ABSENCE OF SINGLET OXYGEN

The photolysis of 1,3,4-thiadiazolidine-2,5-dithiones (Ia-c) in methanol has been studied.The disulphides IIa-c were isolated and identified.Dye sensitized photooxygenation of compounds Ia-c were also studied.Compounds IIa, IIIa and IVa were produced in case of Ia, and IIb and IIIb were produced in Ib, and IIc and IIIc were produced in Ic.A mechanism for the formation of these compounds is presented.