Electro Plating, High-Purity Solvents

2 Mercaptobenzimidazole

2-Mercaptobenzimidazole, identified by CAS number 583-39-1, is an organic sulfur-containing compound widely recognized for its versatile role as an antioxidant and corrosion inhibitor. This heterocyclic compound, with its characteristic imidazole ring fused to a benzene ring and a thiol group at the second position, appears as a white to light yellow crystalline powder. Its primary utility lies within the rubber industry, where it functions as a potent non-staining secondary antioxidant. By effectively decomposing hydroperoxides and neutralizing free radicals, it significantly enhances the thermo-oxidative stability of synthetic and natural rubbers, including SBR, NBR, and CR. Beyond elastomer stabilization, it serves as a crucial intermediate in the synthesis of pharmaceuticals and agrochemicals. Its unique chemical structure allows it to form protective films on metal surfaces, making it an excellent choice for preventing metallic corrosion in acidic environments. The low volatility and high polymer compatibility ensure consistent performance and integrity across industrial

Attributes

Key Features and Benefits

Provides exceptional heat resistance and aging protection for various elastomers.
Acts as a non-discoloring and non-staining secondary antioxidant in rubber formulations.
Synergizes effectively with phenolic antioxidants to enhance long-term polymer stability.
Offers excellent corrosion inhibition for copper and various other metal alloys.
Low volatility ensures minimal loss during high-temperature processing and manufacturing cycles.
Enhances the fatigue life and durability of mechanical rubber components.
High purity ensures minimal interference with vulcanization and chemical reactions.
Versatile chemical intermediate facilitates the production of specialized fungicides and pharmaceutical agents.
Improves the solubility profile in diverse organic solvents for flexible industrial application and processing ease.

Specifications

Technical Highlights

Molecular Formula: C7H6N2S with a molecular weight of approximately 150.20 g/mol.
Melting Point range spans 298°C to 305°C, indicating high thermal stability.
Exhibits low solubility in water but dissolves well in ethanol, acetone, and ethyl acetate.
Functions as a hydroperoxide decomposer in synergy with primary radical scavengers.
Structure features tautomeric equilibrium between thiol and thione forms.
Demonstrates high efficacy as a vapor phase corrosion inhibitor in specific industrial coatings.
Particle size distribution is optimized for rapid dispersion within viscous elastomer compounds and solvent-based systems.
Stable under standard storage conditions when kept away from strong oxidizing agents and bright ambient light.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Essential additive in the production of high-performance automotive seals, hoses, and gaskets.
Used extensively in wire and cable insulation to prevent oxidative degradation from heat.
Applied in bright copper plating processes as a leveling agent and grain refiner.
Included in metalworking fluids to protect machinery and workpieces from corrosive chemical attack.
Serves as a key chemical precursor for synthesizing anti-ulcer drugs or pharmaceuticals.
Integrated into polyurethane and polyolefin plastics to extend their operational service life.
Utilized in the formulation of protective coatings for marine environments and industrial infrastructure projects.
Valuable component in photographic emulsion manufacturing for improving final image stability.