Sodium benzotriazole in water

BTA・Na (Sodium benzotriazole) is a highly effective, water-soluble corrosion inhibitor specifically designed for copper and copper alloys. It is the sodium salt of 1,2,3-Benzotriazole (BTA), and its key advantages include excellent water solubility, rapid film formation, and a wide pH range.

CAS No.: 15217-42-2  Molecular Formula: C₆H₄N₃Na  Appearance: Pale yellow to yellow transparent liquid 

Effective Content: ≥30% Density (20℃): 1.20 min  pH Value (1% Aqueous Solution): 10.0–12.0

Main Properties

1. High-efficiency corrosion inhibition, greatly reduce copper corrosion rate

2. Wide applicable pH range: 5.5–11.0

3. Good thermal stability and chlorine resistance

4. Excellent anti-tarnish effect on copper, brass and bronze

5. Good compatibility with common water treatment agents

Application Fields & Dosage

1. Circulating Cooling Water: Protect copper heat exchangers, dosage: 2–4 mg/L

2. Closed Circuit Water & Boiler Water: Prevent pipeline corrosion, dosage: 5–10 mg/L

3. Automobile Coolant: Protect internal copper components, dosage: 0.1%–0.5%

4. Electronic Industry & PCB: Prevent copper circuit corrosion

5. Copper Products Anti-tarnish: Prevent oxidation and blackening of copper ornaments and accessories

Manufacturers of Sodium Benzotriazole

Shandong Kairui Chemical Co., Ltd. is a professional manufacturer of sodium benzotriazole (BTA·Na), dedicated to providing high-quality corrosion inhibitors and water treatment chemicals to the global market.

Core Technological Advantages

Shandong Kairui Chemical's core competitiveness lies in its advanced production technology and rigorous quality control.

1. The factory covers an area of approximately 67,000 square meters and employs advanced continuous production technology and a DCS automated control system to ensure stable and efficient production processes, with quality control meeting the industry’s highest standards.

2. The company has 20 years of experience in the R&D and production of water treatment chemicals and additives, and has established comprehensive systems for process development, production management, and supply chain management.

3. Products are exported to over 70 countries and regions worldwide. With more than 15 years of export experience, the company has established a professional hazardous chemicals handling team to ensure safe and efficient logistics.

Contact Kairui

TEL: +86-632-3671188 

E-mail: [email protected]

ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China