Electro Plating, High-Purity Solvents

N Ethylenethiourea

Ethylenethiourea, identified by CAS number 96-45-7, is a white to pale green crystalline solid belonging to the imidazoline-2-thiones family. This versatile heterocyclic organic compound serves primarily as a specialized accelerator in the vulcanization process of polychloroprene and other various synthetic elastomers. Chemically characterized by its unique thiourea structure within a five-membered ring, it facilitates rapid cross-linking reactions, significantly enhancing the physical properties of rubber compounds. Beyond its industrial utility in rubber manufacturing, ethylenethiourea is recognized as a degradation product of ethylenebisdithiocarbamate fungicides, making it a subject of significant toxicological interest and regulatory oversight. Its solubility in water and organic solvents allows for diverse processing applications. However, its classification as a potential human carcinogen necessitates stringent handling protocols and environmental monitoring. Despite health concerns, ETU remains indispensable for producing high-performance rubber goods requiring exceptional heat resistance and durability, bridging the gap between specialized chemical synthesis and large-scale industrial manufacturing requirements worldwide.

Attributes

Key Features and Benefits

Provides rapid vulcanization cycles for polychloroprene rubbers.
Delivers exceptional scorch safety during industrial processing.
Enhances the heat resistance and aging properties of finished goods.
Ensures uniform cross-link density across complex rubber molded parts.
Low volatility reduces loss during high-temperature mixing stages.
Improves mechanical properties including tensile strength and compression set.
Compatible with various sulfur-modified and non-sulfur-modified polymer grades.
Highly effective at low concentration levels for cost-efficiency.
Facilitates the production of high-durability seals and gaskets.
Enables reliable performance in demanding automotive and industrial environments.
Promotes product quality and long-term longevity.

Specifications

Technical Highlights

Molecular Formula: C3H6N2S.
Molecular Weight: 102.16 g/mol.
Melting Point: approximately 197 to 201 degrees Celsius.
Appearance: Solid crystalline powder or granules.
Solubility: Soluble in warm water, ethanol, and ethylene glycol.
Reactivity: Acts as a nucleophilic sulfur donor in polymer cross-linking.
Vapor Pressure: Negligible at ambient room temperatures.
pH: Typically neutral to slightly alkaline in aqueous dispersions.
Classification: Thioamide derivative with high chemical purity standards.
Decomposition: Thermally stable until reaching its specific melting point.
Storage: Requires cool, dry conditions away from oxidizing agents.
Handling: Requires personal protective safety equipment.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Primary vulcanization accelerator for Neoprene and Polychloroprene rubber stocks.
Essential additive in manufacturing durable automotive hoses and tubing.
Utilized in producing industrial conveyor belts for mining operations.
Employed in wire and cable jacketing for superior electrical insulation.
Key component in high-performance engine mounts and mechanical vibration isolators.
Used in crafting specialty seals and gaskets for chemical resistance.
Applied in the manufacturing of scuba diving suits and aquatic gear.
Intermediate in synthesis of certain pharmaceuticals and agricultural chemicals.
Functionally critical for bridge bearing pads and heavy-duty construction materials.
Used in electroplating.