Synonym(s): BTA, 1H-Benzotriazole, 1,2,3-Benzotriazole, 1H-1,2,3-Benzotriazole

Description

Benzotriazole is a heterocyclic chemical. It is a fused ring structure with a benzene ring fused to a triazole ring, with both rings being aromatic. Benzotriazole, its inorganic salts, and its derivatives, are widely used as corrosion inhibitors, mainly for copper and its alloys, in many industries, such as water treatment and lubricants. Benzotriazole can also be used as a chemical intermediate to synthesize many products with significant applications, such as the synthesis of acylbenzotriazole and its derivatives.

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Specification

Property	Specification	Typical Value
Appearance	White to off-white powder or flakes	White to off-white powder or flakes
Purity, %	98.5 min	99.0
Water, %	0.2 Max	0.1
Ash, %	0.05 Max	< 0.05
pH	5.0-6.0	5.5
Melting Point, °C	96.0 – 99.0	97.0 – 98.0

Properties

Chemical Formula	C6H5N3
Molecular Weight	119.13
Appearance	White to off-white solid
Melting Point	96 – 99 °C (205 – 210 °F)
Boiling Point	350 °C (662 °F)
Density	1.36 g/cm3

Applications

CG 601, Benzotriazole, can be used in many industries. The applications include, but are not limited to,

Chemical Intermediate for multiple industries.
Corrosion inhibitor for copper and brass.
Rust preventative.
Antioxidant.
Emulsifier.
Antifogging agent.
UV resistant agent.
Used in water treatment, antifreeze fluids, and lubricants.

Manufacturing Process

Benzotriazole is typically produced with 1,2-phenylenediamine as the major raw material. A ring-closure reaction is achieved via a diazotization, using sodium nitrite as the reagent.

Chemical Reactions

Benzotriazole reacts with inorganic bases, such as sodium hydroxide, to form the salt of benzotriazole.

Benzotriazole reacts with bis (2-ethylhexyl) amine and formaldehyde to form the liquid derivative of benzotriazole, which is widely used as a corrosion inhibitor in lubricants and greases, due to its excellent compatibility and solubility in those systems.

Spectra

NMR

SDBS : https://sdbs.db.aist.go.jp/ , National Institute of Advanced Industrial Science and Technology, January 19th, 2025

IR

SDBS : https://sdbs.db.aist.go.jp/ , National Institute of Advanced Industrial Science and Technology, January 19th, 2025

Packaging

25 kg / bag

Other packaging available upon request

Documents

TDS

CG 601 Benzotriazole Premium Grade, CAS 95-14-7, BTA, 1,2,3-Benzotriazole