BENZOTRIAZOLE

Benzotriazole is a heterocyclic corrosion inhibitor widely used to protect metals such as copper, brass, and bronze from oxidation and tarnishing.
Benzotriazole forms a stable, invisible protective film on metal surfaces, preventing degradation in moisture, acids, alkalis, and industrial environments.
Benzotriazole is used in metalworking fluids, cooling-water systems, cleaners, coatings, lubricants, and electroplating processes.
Benzotriazole is valued for its strong chelating ability, thermal stability, and compatibility with industrial formulations.

CAS Number: 95-14-7
EC Number: 202-394-1
Molecular Formula: C6H5N3
Molecular Weight: 119.12 g/mol

Synonyms: BTA, 1H-Benzotriazole, 1,2,3-Benzotriazole, Corrosion inhibitor BTA, Copper corrosion inhibitor, Metal passivation agent, Triazole corrosion additive, Industrial anti-tarnish agent, Benzotriazole inhibitor, Protective metal additive, Benzotriazole, BTA, 1,2,3-Benzotriazole, 1H-Benzotriazole, 1H-1,2,3-Benzotriazole, Benzotriazole Powder, Benzotriazole Granules, Benzotriazole Crystals, High Purity Benzotriazole, Technical Grade Benzotriazole, Industrial Grade Benzotriazole, Benzotriazole Corrosion Inhibitor, BTA Corrosion Inhibitor, Benzotriazole Copper Inhibitor, Copper Anti-Corrosion Agent BTA, Copper Corrosion Protector BTA, Metal Passivation Agent BTA, Metal Protection Benzotriazole, Metal Surface Inhibitor BTA, Metal Stabilizer Benzotriazole, Benzotriazole Metal Treatment Agent, Benzotriazole Anti-Tarnish Agent, Anti-Tarnish Benzotriazole, Benzotriazole Rust Inhibitor, BTA Rust Preventer, Benzotriazole Water Treatment Additive, Benzotriazole Industrial Additive, Benzotriazole Functional Additive, Benzotriazole Chemical Additive, Benzotriazole Surface Protection Agent, Benzotriazole Copper Passivator, Benzotriazole Alloy Protection Agent, Benzotriazole Anti-Oxidation Agent, Benzotriazole Thermal Stabilizer, Benzotriazole UV Stabilizer Component, Benzotriazole Coating Additive, Benzotriazole Paint Additive, Benzotriazole Lubricant Additive, Benzotriazole Coolant Additive, Benzotriazole Cleaning Agent Component, Benzotriazole Electroplating Chemical, Benzotriazole Industrial Chemical, Benzotriazole Fine Chemical, Benzotriazole Specialty Chemical, Benzotriazole Raw Material, Benzotriazole Processing Chemical, Benzotriazole Technical Product, Benzotriazole Industrial Product, Benzotriazole for Metalworking Fluids, Benzotriazole for Closed Water Systems, Benzotriazole Preservative for Metals, Benzotriazole Copper Alloy Protector, Benzotriazole Dezincification Inhibitor, BTA Copper Corrosion Resistor, Benzotriazole Brass Protection Agent, Benzotriazole Bronze Protection Agent, Benzotriazole Protective Agent, Benzotriazole Antioxidant Additive, Chemical Inhibitor Benzotriazole, Molecule BTA

APPLICATIONS

Benzotriazole is used in metalworking fluids to protect copper and copper alloys.
Benzotriazole forms a durable passivation layer under machining and cooling operations.
Benzotriazole improves tool life and surface finish.

Benzotriazole is used in closed-loop cooling-water systems.
Benzotriazole prevents corrosion of heat-exchanger copper surfaces.
Benzotriazole stabilizes system performance in varying pH conditions.

Benzotriazole is used in household and industrial metal polishes.
Benzotriazole prevents re-tarnishing of polished copper and brass surfaces.
Benzotriazole enhances cleaning formulations.

Benzotriazole is used in electronic and semiconductor cleaning.
Benzotriazole protects copper circuitry from oxidative attack.
Benzotriazole improves reliability in microelectronics manufacturing.

Benzotriazole is used in lubricants for machinery exposed to moisture.
Benzotriazole inhibits corrosion in automotive and industrial lubrication systems.
Benzotriazole maintains metal surface integrity during operation.

Benzotriazole is used in coatings and paints for metal substrates.
Benzotriazole enhances corrosion resistance and adhesion.
Benzotriazole improves long-term coating durability.

Benzotriazole is used in anti-freeze and coolant formulations.
Benzotriazole prevents corrosion in copper components of engines.
Benzotriazole improves coolant system longevity.

Benzotriazole is used in electroplating solutions.
Benzotriazole acts as a surface brightener and inhibitor.
Benzotriazole improves plating uniformity and appearance.

Benzotriazole is used in vapor-phase corrosion inhibitors.
Benzotriazole protects stored metal components from humidity.
Benzotriazole enhances packaging corrosion protection.

Benzotriazole is used in chemical cleaning systems for industrial equipment.
Benzotriazole prevents flash corrosion after acid cleaning.
Benzotriazole promotes clean and stable surfaces.

Benzotriazole is used as a corrosion inhibitor for copper and copper alloys.
Benzotriazole forms a protective film on copper surfaces.
Benzotriazole prevents tarnishing in industrial and household applications.

Benzotriazole is used in metalworking fluids.
Benzotriazole protects metal components during machining and forming.
Benzotriazole enhances corrosion resistance in water-based coolant systems.

Benzotriazole is used in automotive antifreeze formulations.
Benzotriazole prevents corrosion in aluminum and copper radiators.
Benzotriazole improves long-term coolant system stability.

Benzotriazole is used in cleaning agents.
Benzotriazole protects metal components during alkaline or acidic cleaning.
Benzotriazole prevents flash corrosion during washing operations.

Benzotriazole is used in cooling tower treatment chemicals.
Benzotriazole reduces corrosion rates in circulating cooling systems.
Benzotriazole extends equipment life in industrial cooling loops.

Benzotriazole is used in plating and electroplating baths.
Benzotriazole brightens copper surfaces during electroplating.
Benzotriazole reduces unwanted copper dissolution in plating tanks.

Benzotriazole is used in aerospace corrosion protection.
Benzotriazole provides long-term stability for copper-containing alloys.
Benzotriazole supports protective coatings in high-performance equipment.

Benzotriazole is used in photographic processing solutions.
Benzotriazole prevents fog formation in photographic papers.
Benzotriazole stabilizes developers in darkroom chemistry.

Benzotriazole is used in electronics manufacturing.
Benzotriazole protects printed circuit boards from corrosion.
Benzotriazole reduces oxidation during soldering processes.

Benzotriazole is used in lubricants.
Benzotriazole enhances corrosion protection in synthetic and mineral oils.
Benzotriazole protects copper components in bearings and gears.

Benzotriazole is used in household polishes.
Benzotriazole preserves shine on brass and copper objects.
Benzotriazole prevents re-tarnishing after polishing.

Benzotriazole is used in hydraulic fluids.
Benzotriazole supplements corrosion resistance in fluid power systems.
Benzotriazole maintains metal stability under high pressure.

Benzotriazole is used in marine equipment protection.
Benzotriazole reduces corrosion on boat engines and fittings.
Benzotriazole supports longevity of copper-based marine parts.

Benzotriazole is used in vapor phase corrosion inhibitors.
Benzotriazole protects stored metal components via volatile protection.
Benzotriazole maintains metal integrity during long-term storage.

Benzotriazole is used in recirculating water systems.
Benzotriazole helps control galvanic corrosion in mixed-metal systems.
Benzotriazole stabilizes water treatment formulations.

DESCRIPTION

Benzotriazole is a white to off-white crystalline powder.
Benzotriazole is slightly soluble in water and fully soluble in organic solvents.
Benzotriazole has a mild characteristic odor.

Benzotriazole forms strong complexes with copper ions.
Benzotriazole provides protection even in aggressive chemical environments.
Benzotriazole exhibits strong thermal stability in high-temperature systems.

Benzotriazole is stable under normal storage conditions.
Benzotriazole shows excellent compatibility with surfactants, oils, and additives.
Benzotriazole has long-lasting effects in aqueous and solvent-based systems.

Benzotriazole is widely used in industrial corrosion-inhibition formulations.
Benzotriazole protects metals without significantly affecting conductivity or appearance.
Benzotriazole is suitable for long-term preservation applications.

PROPERTIES

Appearance: White to off-white crystalline powder
Odor: Mild
Melting Point: ~96–100°C
Boiling Point: Decomposes before boiling
Solubility: Slightly soluble in water; soluble in alcohols, acetone, and other organics
pH (1% solution): Slightly acidic
Stability: Thermally stable; resistant to oxidation
Compatibility: Excellent with oils, solvents, surfactants, and corrosion inhibitor blends

FIRST AID

Inhalation:
Move to fresh air.
Seek medical attention if irritation or coughing persists.

Skin Contact:
Wash thoroughly with soap and water.
Seek medical help if irritation develops.

Eye Contact:
Rinse with plenty of water for at least 15 minutes.
Seek medical attention if discomfort continues.

Ingestion:
Rinse mouth with water.
Seek medical attention if symptoms develop.

Note to Physicians:
Treat symptomatically; low acute toxicity expected.

HANDLING AND STORAGE

Handling:
Avoid dust formation; use gloves and goggles.
Prevent inhalation of fine particulates.

Ventilation:
Use adequate ventilation in handling areas.

Avoidance:
Avoid contact with strong oxidizing agents.
Do not expose to high heat.

Spill Procedures:
Sweep or vacuum gently to avoid dust.
Dispose according to local regulations.

Storage:
Store in tightly closed containers.
Keep in a cool, dry, well-ventilated place.
Protect from moisture and contamination.