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Metal Deactivator T571
Metal Deactivator T571
C A S Number: 94270-86-7
Chemical composition: Methylbenzotriazole derivatives
Related products: IRGAMET 39, CUVAN 303, ADDITIN RC 8239
Category:
Keywords:
Colloid Compound
Chemical structure

Product Overview
TT571 is a liquid, oil‑soluble metal deactivator derived from methylbenzotriazole, offering excellent copper‑corrosion inhibition and outstanding antioxidant performance. Its key advantage lies in its broad‑spectrum metal protection, effectively safeguarding copper, silver, zinc, and other metals. TT571 suppresses catalytic oxidation by chelating metal ions, thereby slowing oil oxidation, while simultaneously forming a protective film on metal surfaces to inhibit electrochemical corrosion. In particular, when formulated with suitable antioxidants in API Group II and Group III base oils, it exhibits a superior synergistic antioxidant effect. TT571 demonstrates excellent oil solubility, does not adversely interact with conventional metal‑containing additives, and boasts exceptional compatibility, making it widely applicable to steam turbine oils, hydraulic fluids, gear oils, and other industrial lubricants, as well as greases and metalworking fluids.
Performance Features
① Excellent copper corrosion inhibition: Effectively suppresses corrosion of copper and copper alloys, protecting nonferrous metal components.
② Broad-spectrum, multi-metal protection: Effectively safeguards copper, silver, zinc, cadmium, cobalt, and other metals against corrosion and oxidation.
③ Significant synergistic antioxidant effect: By chelating metal ions to inhibit oxidation‑catalyzing reactions, it enhances oil stability when compounded with antioxidants.
④ Excellent additive compatibility: does not adversely interact with metallic additives, exhibits superior blending performance, and ensures safe formulation.
Scope of Application
① Industrial lubricants: gear oils, hydraulic oils, compressor oils, steam turbine oils, circulating oils, antioxidant and anti-rust oils, and HL general‑purpose machine tool oils.
② Automotive lubricants: engine oil, gear oil, and transmission fluid.
③ Metalworking fluids: cutting fluids, grinding fluids, forming fluids, and metalworking oils.
④ Lubricating Greases: industrial lubricating greases, automotive lubricating greases.
⑤ Specialty oils: transformer oil, fuel additives, and synthetic lubricants.
Recommended dosage
0.01%-0.10%
Packaging Specifications
20L plastic drums, net weight 15 kg per drum; 200L steel drums, net weight 180 kg per drum.
Technical indicators
| Project |
Typical data |
Test method |
| Appearance |
Yellow transparent liquid |
Visual estimation |
| Kinematic viscosity (40°C), mm²/s |
75 |
GB/T 265 |
| Density (20°C), kg/m³ |
946 |
GB/T 1884 |
| Flash point (open cup), °C |
180 |
GB/T 3536 |
| Total alkalinity, mgKOH/ g |
155 |
SH/T 0251 |
Note: The above data represent typical specifications only and do not constitute product performance specifications.
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