Copper Corrosion Inhibitors

Benzotriazole Sodium Salt, also known as BTA-Na or BTA-S, is the neutralized sodium salt form of Benzotriazole. Unlike the solid acid form, BTA-Na is a ready-to-use liquid that offers excellent solubility in water, ethylene glycol, and lower alcohols, making it ideal for liquid formulations and automated dosing systems.

Sodium Benzotriazole is non-explosive, low-toxicity, and easy to handle. It is soluble in water and compatible with organic solvents such as chloroform, benzene, and toluene, and is fully miscible with lower alcohols and ethylene glycol in any proportion. When blended with other corrosion inhibitors, BTA-Na exhibits strong synergistic effects, further enhancing corrosion protection performance.

Key Properties & Protective Mechanism

• Adsorption Film Formation: BTA-Na adsorbs onto the metal surface to create a uniform, ultra-thin protective membrane. This barrier isolates the metal from oxygen and corrosive media.
• Prevention of Copper Ion Migration: In closed-loop systems, trace copper ions can catalyze the corrosion of aluminum and iron (pitting). BTA-Na prevents this migration, protecting multi-metal systems from galvanic corrosion.
• Chemical Stability: It is non-explosive and non-toxic, providing a safe handling profile for industrial applications. It prevents the catalytic oxidation of ethylene glycol into acidic byproducts, extending the life of heat transfer fluids.

Technical Specifications

Industrial Applications

1. Industrial Cooling Systems: Used in circulating water systems for power plants and nuclear reactors to stabilize copper components.
2. Renewable Energy: A critical additive in solar energy conversion systems to prevent degradation of heat transfer surfaces.
3. Automotive & Engines: Essential for antifreeze and cooling systems in internal combustion engines to protect copper and aluminum radiators.
4. Multi-Metal Formulations: Frequently used alongside other inhibitors to produce a synergistic effect, significantly enhancing overall corrosion protection.

Packaging & Storage

• Packaging: Available in 25kg plastic drums, 250kg full-plastic drums, or 1000L IBC totes to meet various industrial scales.
• Storage: Store in a cool, dry, and well-ventilated area. Keep containers sealed to maintain product concentration and prevent contamination.

Why Choose WaterCareChem for Benzotriazole Sodium Salt (BTA·Na)?

WaterCareChem supplying high-purity Benzotriazole Sodium Salt (BTA·Na) liquid corrosion inhibitors directly from our production base. We ensure consistent quality, a reliable supply chain, and competitive factory pricing for global industrial applications.

• Factory-Direct Supply: Strict quality control protocols ensure stable active content and high purity in every batch.
• Specialized Copper Protection: Proven performance in preventing corrosion and pitting in copper, brass, and bronze alloys.
• Advanced Formulation Support: Available in various concentrations with flexible packaging options (Drums/IBC) to suit your system requirements.
• Expert Technical Guidance: Our team provides professional support for dosing and application in cooling towers, solar systems, and engine coolants.

Looking for high-quality Benzotriazole Sodium Salt (BTA·Na) for industrial corrosion control? Contact WaterCareChem today for technical data sheets (TDS), safety data (MSDS), and wholesale quotations.