BTA/1,2,3-Benzotriazole
BTA Chemical: Corrosion inhibitor and metal passivator used in various industries.
1,2,3-Benzotriazole
- CAS Number: 95-14-7
- EINECS NO.: 202-394-1
- Molecular Weight: 119.13
- Molecular Formula: C6H5N3
- Purity (%): 99.5 min
- Appearance: White needle-shape crystalloids, white granule or white colum
- Package: 25Kgs/bag or customers' requirement.
- Other Name: 1H-Benzotriazole; Benzotraizole; BTA; T406 petroleum additive; Azimidobenzene
Benzotriazole Specification
| ITEMS | SPECIFICATIONS |
| Assay % | 99.5 min |
| Melting Point℃ | 97 min. |
| Aqueous PH | 5.0-6.0 |
| Moisture % | 0.10 max. |
| Ash content % | 0.05 |
| Solubility in Alcohol | approximately transparent |
Types of Benzotriazole
Comparative Overview of BTA Shapes
| Feature | BTA Needle-Shape | BTA Granule | BTA Column | BTA Powder |
|---|---|---|---|---|
| Typical Size | 1-5 mm length | 0.5-2 mm diameter | 2-4 mm diameter, 3-8 mm length | < 0.2 mm (200 mesh) |
| Dissolution Rate | Fast | Moderate | Slowest | Fastest |
| Dust Generation | Low | Very Low | None | Very High |
| Flowability | Good | Excellent | Excellent | Poor |
| Typical Use Case | Premium coolants, fast-dissolving formulations | Bulk industrial water treatment, bulk blending with Other Solid Inhibitors | Slow-release systems | High-speed liquid mixing, R&D |
What is Benzotriazole Used for
- Coolants & Antifreeze: Prevents corrosion in radiator and engine cooling systems.
- Metalworking Fluids: Protects copper components in machining fluids.
- Water Treatment: Used in recirculating water systems and HVAC.
- Coatings & Plating: Additive in surface treatments and electroplating baths.
- Polymer Stabilization: UV stabilizer in plastics and polymers.
FAQ of Benzotriazole
BTA forms a protective chelating layer on copper surfaces, blocking oxidation and reaction with corrosive elements like oxygen, salts, and acids.
No, BTA is not approved for direct use in potable water systems in most regions (e.g., NSF/ANSI 60 certification is typically not granted). It is primarily used in:
- Industrial cooling water
- Closed-loop heating systems
- Automotive antifreeze
- Metalworking fluids
For drinking water, consider approved alternatives like silicate- or phosphate-based inhibitors.
Shelf Life: Typically 2–3 years when stored properly in unopened, original packaging.
Storage Conditions: Keep in a cool, dry place (<25°C), away from moisture, heat, and oxidizers.
Packaging: Sealed foil bags or drums with desiccants recommended.
Both are copper corrosion inhibitors, but BTA is preferred for high-precision copper protection; TTA for general water treatment and coolants.
Our BTA is standardly packed in 25kg bags, with other packaging options available to meet specific customer requirements.
This product should be stored tightly sealed in a cool, dry, and well-ventilated area to maintain its quality and stability
Benzotriazole Supplier - Hoochemtec
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Product Excellence: We provide high-purity (≥99.5%) BTA in four versatile morphologies, engineered for superior thermal stability and rapid solubility across diverse industrial applications.
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Logistics Efficiency: Our strategic location and reinforced packaging ensure prompt, damage-free global delivery with lead times as short as 7–10 days.
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Professional Service: With 17 years of expertise, we deliver 24-hour technical support and full regulatory documentation—including REACH and SGS—to ensure seamless international transactions.
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Manufacturing Integrity: As an ISO-certified, factory-direct partner, we guarantee quality through rigorous testing and a transparent return policy for total client peace of mind.
