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1,2,3-Benzotriazole is a heterocyclic aromatic compound consisting of a fused benzene and triazole ring system.
1,2,3-Benzotriazole is widely used as a corrosion inhibitor, UV stabilizer, and intermediate in chemical synthesis.
1,2,3-Benzotriazole is valued for its strong ability to form protective complexes with metals, especially copper and its alloys.
1,2,3-Benzotriazole is also applied in polymers, coatings, and electronics for its stabilizing and protective properties.
CAS Number: 95-14-7
EC Number: 202-394-1
Molecular Formula: C6H5N3
Molecular Weight: 119.12 g/mol
Synonyms: 1,2,3-Benzotriazole, BTA, Benzotriazole, 1H-Benzotriazole, Ortho-Benzotriazole, o-Benzotriazole, BTA-Corrosion Inhibitor, Benzotriazole UV Stabilizer, Benzotriazole Metal Passivator, Benzotriazole Polymer Additive, 1,2,3-Benzotriazole Industrial Grade, Benzotriazole Antioxidant, 1,2,3-Benzotriazole, Benzotriazole, BTA, 1H-Benzotriazole, 1,2,3-Benzotriazole Compound, Benzotriazole Chemical, Benzotriazole Substance, Benzotriazole Material, Benzotriazole Product, Benzotriazole Reagent, Benzotriazole Certified Reagent, Benzotriazole Analytical Reagent, Benzotriazole Laboratory Reagent, Benzotriazole Certified Standard, Benzotriazole Analytical Standard, Benzotriazole Laboratory Standard, Benzotriazole Assay, Benzotriazole Powder, Benzotriazole Crystals, Benzotriazole Solid, Benzotriazole Granules, Benzotriazole Solution, Benzotriazole Liquid, Benzotriazole Technical Grade, Benzotriazole Industrial Grade, Benzotriazole Pharmaceutical Grade, Benzotriazole Food Grade, Benzotriazole Cosmetic Grade, Benzotriazole Laboratory Grade, Benzotriazole Research Grade, Benzotriazole Pure, Benzotriazole Extra Pure, Benzotriazole High Purity, Benzotriazole Refined, Benzotriazole Stabilized, Benzotriazole Certified, Benzotriazole Bulk Chemical, Benzotriazole Commercial Grade, Benzotriazole Raw Material, Benzotriazole Fine Chemical, Benzotriazole Specialty Chemical, Benzotriazole Functional Additive, Benzotriazole Specialty Additive, Benzotriazole Active Ingredient, Benzotriazole Functional Ingredient, Benzotriazole Specialty Ingredient, Benzotriazole Corrosion Inhibitor, Benzotriazole Metal Passivator, Benzotriazole Copper Inhibitor, Benzotriazole Water Treatment Agent, Benzotriazole Anticorrosion Agent, Benzotriazole Protective Agent, Benzotriazole Stabilizer, Benzotriazole Preservative, Benzotriazole Processing Aid, Benzotriazole Surface Treatment Agent, Benzotriazole Industrial Additive, Benzotriazole Technical Product, Benzotriazole Industrial Product, Benzotriazole Laboratory Chemical, Benzotriazole Research Chemical, Benzotriazole Organic Compound, Benzotriazole Heterocyclic Compound, Benzotriazole Aromatic Compound, Benzotriazole Specialty Reagent, Benzotriazole Synthesis Intermediate, Benzotriazole Manufacturing Intermediate
APPLICATIONS
1,2,3-Benzotriazole is used as a corrosion inhibitor for copper and copper alloys.
1,2,3-Benzotriazole prevents tarnishing and degradation of metal surfaces.
1,2,3-Benzotriazole is applied in metalworking fluids for long-term protection.
1,2,3-Benzotriazole is used in cooling water systems as a corrosion inhibitor.
1,2,3-Benzotriazole protects brass and bronze equipment from corrosion.
1,2,3-Benzotriazole enhances the efficiency of industrial water treatments.
1,2,3-Benzotriazole is employed in coatings and paints.
1,2,3-Benzotriazole improves weatherability of outdoor coatings.
1,2,3-Benzotriazole stabilizes films and varnishes against degradation.
1,2,3-Benzotriazole is used as a UV stabilizer in polymers.
1,2,3-Benzotriazole protects plastics and fibers from photo-degradation.
1,2,3-Benzotriazole extends the life of polymeric materials under sunlight.
1,2,3-Benzotriazole is applied in the electronics industry.
1,2,3-Benzotriazole is used in electroplating baths for bright, stable coatings.
1,2,3-Benzotriazole protects printed circuit boards from oxidation.
1,2,3-Benzotriazole is used in antifreeze and automotive fluids.
1,2,3-Benzotriazole prevents corrosion of engine cooling systems.
1,2,3-Benzotriazole improves durability of automotive heat exchangers.
1,2,3-Benzotriazole is employed as an intermediate in dyes and pharmaceuticals.
1,2,3-Benzotriazole is used in the synthesis of specialty chemicals.
1,2,3-Benzotriazole provides functional groups for advanced chemical reactions.
1,2,3-Benzotriazole is used in lubricants and greases.
1,2,3-Benzotriazole prevents oxidation and corrosion in high-performance machinery.
1,2,3-Benzotriazole extends service life of lubricants.
1,2,3-Benzotriazole is used as a corrosion inhibitor.
1,2,3-Benzotriazole protects copper and copper alloys from tarnishing.
1,2,3-Benzotriazole prevents galvanic corrosion in mixed-metal systems.
1,2,3-Benzotriazole is applied in cooling water systems.
1,2,3-Benzotriazole prevents pitting corrosion in industrial pipelines.
1,2,3-Benzotriazole enhances service life of cooling equipment.
1,2,3-Benzotriazole is used in antifreeze formulations.
1,2,3-Benzotriazole provides long-term corrosion resistance in engine coolants.
1,2,3-Benzotriazole improves protection of aluminum and copper components.
1,2,3-Benzotriazole is incorporated in lubricants.
1,2,3-Benzotriazole reduces wear of metal surfaces in contact.
1,2,3-Benzotriazole enhances stability of oil-based lubricants.
1,2,3-Benzotriazole is applied in hydraulic fluids.
1,2,3-Benzotriazole prevents corrosion in hydraulic systems.
1,2,3-Benzotriazole improves reliability of heavy machinery.
1,2,3-Benzotriazole is used in metalworking fluids.
1,2,3-Benzotriazole protects cutting and grinding tools.
1,2,3-Benzotriazole extends tool life in machining operations.
1,2,3-Benzotriazole is incorporated in coatings.
1,2,3-Benzotriazole enhances corrosion resistance of paints.
1,2,3-Benzotriazole improves durability of protective coatings.
1,2,3-Benzotriazole is applied in electroplating.
1,2,3-Benzotriazole ensures uniform deposition of copper.
1,2,3-Benzotriazole reduces defects in plated surfaces.
1,2,3-Benzotriazole is used in photography.
1,2,3-Benzotriazole acts as an antifogging agent.
1,2,3-Benzotriazole stabilizes image development.
1,2,3-Benzotriazole is incorporated in aerospace industry.
1,2,3-Benzotriazole protects fuel systems against corrosion.
1,2,3-Benzotriazole is used in hydraulic circuits of aircraft.
1,2,3-Benzotriazole is applied in electronics.
1,2,3-Benzotriazole protects copper circuits from oxidation.
1,2,3-Benzotriazole ensures reliability of printed circuit boards.
1,2,3-Benzotriazole is used in cleaning formulations.
1,2,3-Benzotriazole prevents flash corrosion during cleaning.
1,2,3-Benzotriazole enhances metal protection in aqueous cleaners.
DESCRIPTION
1,2,3-Benzotriazole is a heterocyclic aromatic compound.
1,2,3-Benzotriazole has the CAS number 95-14-7.
1,2,3-Benzotriazole has the EC number 202-394-1.
1,2,3-Benzotriazole has the molecular formula C6H5N3.
1,2,3-Benzotriazole has a molecular weight of 119.12 g/mol.
1,2,3-Benzotriazole appears as white to light beige crystalline powder.
1,2,3-Benzotriazole is odorless or has a faint phenolic odor.
1,2,3-Benzotriazole is slightly soluble in water.
1,2,3-Benzotriazole is readily soluble in alcohols, benzene, and chloroform.
1,2,3-Benzotriazole forms strong coordination complexes with copper.
1,2,3-Benzotriazole is effective as a corrosion inhibitor in neutral and alkaline conditions.
1,2,3-Benzotriazole is thermally stable under normal storage.
1,2,3-Benzotriazole is widely used in antifreeze, lubricants, and coatings.
1,2,3-Benzotriazole is classified as harmful if swallowed or inhaled.
1,2,3-Benzotriazole requires controlled handling in industrial applications.
1,2,3-Benzotriazole is a white to off-white crystalline powder or needle-like solid.
It has a faint aromatic odor and is stable under normal conditions.
1,2,3-Benzotriazole is slightly soluble in water but soluble in alcohols, acetone, and organic solvents.
1,2,3-Benzotriazole acts primarily by adsorbing onto metal surfaces.
It forms a thin, invisible protective film that prevents corrosion.
It is effective even at low concentrations in aqueous systems.
1,2,3-Benzotriazole is resistant to high temperatures and UV exposure.
PROPERTIES
Appearance: White to off-white crystalline powder
Odor: Faint aromatic odor
Density: 1.36 g/cm³
Melting Point: 96–100°C
Boiling Point: 204°C (decomposes)
Solubility: Slightly soluble in water (~20 g/L at 20°C); soluble in ethanol, acetone, benzene
pKa: 8.2 (weakly acidic)
Flash Point: 198°C (closed cup)
Reactivity: Stable under normal conditions; incompatible with strong oxidizers
Storage Temperature: Store at 5–30°C in tightly sealed containers
FIRST AID
Inhalation:
Move to fresh air if dust is inhaled.
Seek medical attention if irritation persists.
Skin Contact:
Wash thoroughly with soap and water.
Remove contaminated clothing.
Seek medical attention if irritation develops.
Eye Contact:
Flush with water for at least 15 minutes.
Seek medical help if irritation continues.
Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek immediate medical attention.
Note to Physicians:
Treat symptomatically.
Potential irritant to skin, eyes, and respiratory tract.
HANDLING AND STORAGE
Handling:
Avoid dust formation during processing.
Wear protective gloves, goggles, and suitable clothing.
Ventilation:
Provide good general or local exhaust ventilation.
Avoidance:
Avoid contact with strong oxidizers and acids.
Do not eat, drink, or smoke while handling.
Spill and Leak Procedures:
Sweep up or vacuum material carefully.
Avoid dust generation.
Dispose of according to local regulations.
Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Protect from moisture and direct sunlight.
Keep away from incompatible substances.
