Description

4(Or 5)-Methyl-1H-Benzotriazole, Potassium Salt is a high-purity, water-soluble derivative of tolyltriazole, a critical corrosion inhibitor and metal deactivator. This potassium salt form offers enhanced solubility and handling characteristics compared to its acid counterpart, making it highly effective in aqueous systems. It is essential for industries requiring robust protection for copper and copper alloys against tarnishing, dezincification, and corrosion in demanding environments such as cooling water circuits, metalworking fluids, and industrial lubricants.

Application

• Cooling Water Treatment: A primary corrosion inhibitor for copper, brass, and bronze heat exchanger surfaces in open and closed recirculating cooling systems.
• Metalworking Fluids: Protects copper-containing alloys in machining and grinding fluids from staining and corrosion, extending fluid and tool life.
• Industrial Lubricants & Greases: Functions as a metal deactivator and antioxidant additive to prevent catalytic degradation and protect copper components in bearings and gears.
• Antifreeze & Automotive Coolants: A key component in carboxylate technology (OAT) and hybrid organic acid technology (HOAT) coolants to protect radiator and heater cores.
• Hydraulic Fluids: Used in fire-resistant and other specialty hydraulic fluids to inhibit corrosion of copper and brass fittings and valves.
• Plating & Surface Treatment: Employed in electroplating baths and pickling solutions as a brightener and leveling agent, and to prevent unwanted corrosion.
• Polymer Stabilization: Acts as a copper-specific chelating agent in plastics and polymers to prevent metal-ion catalyzed degradation during processing and service life.

Basic Information

Product Name	4(Or 5)-Methyl-1H-Benzotriazole, Potassium Salt
CAS No.	64665-53-8
Molecular Formula	C7H6KN3
Molecular Weight	171.24 g/mol
Synonyms	Potassium Tolyltriazole; Potassium tolutriazole; Tolyltriazole Potassium Salt; 4(5)-Methyl-1H-benzotriazole potassium salt; TT-K; K-TT; Methylbenzotriazole Potassium Salt; 1H-Benzotriazole, 4(5)-methyl-, potassium salt
EINECS	Contact for details

Quality Control

Our 4(Or 5)-Methyl-1H-Benzotriazole, Potassium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with industry specifications for corrosion inhibitors. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and quality assurance for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can lead to caking or reduced efficacy.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% aqueous solution)	8.0 - 10.5
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.