English
Español
tiếng việt
русский
Highly effective copper corrosion inhibitor with strong chemisorption on copper and copper alloy surfaces.
Thermally stable up to 250 °C, maintaining performance in high-temperature coolant and heat transfer systems.
Low volatility and minimal water solubility ensure long-term persistence in closed-loop industrial fluids.
Non-oxidizing and non-foaming—compatible with common antifreeze glycols (EG/PG) and synthetic base stocks.
Readily dispersible in organic solvents and formulated lubricants without requiring co-solvents or surfactants.
Corrosion protection additive in automotive and heavy-duty engine coolants (OAT and HOAT formulations).
Stabilizer in copper-containing heat exchanger fluids for HVAC and district heating systems.
Functional component in metalworking fluid concentrates targeting copper-rich machining alloys (e.g., brass, beryllium copper).
Additive in transformer oils and dielectric fluids where copper conductor protection is critical.
Performance enhancer in industrial closed-loop recirculating water systems with mixed-metal piping (Cu, Fe, Al, stainless steel).
| Chemical Type | Benzotriazole derivative (1-methyl-1H-benzotriazole) |
| Product Form | Off-white to light tan crystalline powder |
| Appearance | Free-flowing microcrystalline solid |
| Melting Point | 84–87 °C (determined by DSC) |
| Primary Applications | Copper corrosion inhibition in aqueous and semi-aqueous industrial fluids |
| Key Features | Adsorbs rapidly on copper; forms protective monolayer film; pH-stable across 5.5–10.5 |
| Benefits | Reduces copper leaching by >95% vs. untreated controls; extends system service life; low odor |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2004/42/EC (VOC limits); not classified under CLP |
| Common Compatible Systems | Suitability |
| Ethylene Glycol/Water Coolants (OAT/HOAT) | Highly Recommended – Excellent stability and synergistic inhibition with sebacates/molybdates |
| Polyglycol-Based Metalworking Fluids | Recommended – Effective at 0.1–0.3 wt%; no adverse interaction with EP additives |
| Alkaline Aqueous Cleaning Solutions (pH 9–11) | Suitable – Maintains inhibitory activity during short-term immersion; may require pH buffering |
| Mineral Oil & PAO Transformer Oils | Highly Recommended – Soluble up to 0.5 wt%; enhances copper passivation without affecting dielectric strength |
Q1: What is the CAS Number for Methylbenzotriazole TTA?
A: The CAS Registry Number is 29385-43-1 (1-Methyl-1H-benzotriazole).
Q2: What is the recommended dosage range in coolant formulations?
A: Typical use level is 0.05–0.25 wt% active in final concentrate; optimal performance is observed at ≥0.15 wt% in ethylene glycol/water blends.
Q3: How does Methylbenzotriazole TTA compare to standard benzotriazole (BTA) in terms of migration resistance?
A: The N-methyl substitution reduces polarity and increases hydrophobicity, resulting in significantly lower leaching from treated surfaces in dynamic flow conditions and reduced extractability in aqueous rinse tests.
Q4: Is Methylbenzotriazole TTA approved for use in potable water contact applications?
A: No—this product is not NSF/ANSI 60 or 61 certified and is not intended for drinking water systems. It is formulated exclusively for industrial closed-loop and non-potable applications.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
