English
| Quantity: | |
|---|---|
99.5%
W&Q
1. Molecular Formula: C6H5N3
2. Property: White to light yellow needle-like crystals or powder. Melting point: 97–100 °C. Slightly soluble in cold water, readily soluble in hot water, alcohols, benzene, and chloroform.
3. Specification(%):
Purity | 99.5% min |
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Benzotriazole (BTA) is a highly effective, widely used industrial corrosion inhibitor, especially known for protecting copper and copper alloys. It works by forming a thin protective film on metal surfaces. BTA is also valued for its multifunctional properties in water treatment, metalworking, antifreeze, and many other fields.
· Chemical Info: 1H-Benzotriazole, CAS 95-14-7, formula C₆H₅N₃, molecular weight 119.13.
· Physical Form: White to light yellow needle-like crystals or powder. Melting point ~98.5°C, boiling point 204°C (decomposes).
· Solubility: Slightly soluble in cold water, readily soluble in hot water, ethanol, acetone, and other organic solvents.
· Chemical Stability: Stable, low toxicity, non-flammable. Acute oral LD50 (mice) ~965 mg/kg. Main hazards: eye irritation and aquatic toxicity (GHS classification).
· Superior Corrosion Protection – Uniquely effective for copper, silver, and their alloys. Prevents tarnishing and corrosion by forming a dense, adherent protective film.
· Multifunctional – Also acts as a UV absorber for polymers, an antifogging agent in photography, an analytical reagent, and an organic synthesis intermediate.
· Broad Industrial Applicability – Used in circulating cooling water systems, metalworking fluids, rust preventives, automotive antifreeze, electronics, coatings, and more.
The most common application is in circulating cooling water systems:
Application Mode | Recommended BTA Concentration |
Continuous treatment | 0.5 – 2.0 mg/L (as BTA) |
Pre-filming treatment | 5 – 15 mg/L (as BTA) |
Using BTA sodium salt (BTA·Na) | 2 – 4 mg/L (as BTA·Na) |
Is BTA effective for all metals?
BTA works very well for copper, copper alloys, silver, lead, nickel, and zinc. It is not a primary choice for steel/iron because its inhibition effect on ferrous metals is weak.
Is BTA safe to handle?
It has low acute toxicity, but standard industrial hygiene measures are required. In case of eye/skin contact, flush with plenty of water. If inhaled, move to fresh air and seek medical advice if symptoms persist.
How should BTA be stored?
Store in a cool, dry, dark place. Shelf life varies by supplier (typically 6–24 months). If old material shows a slight precipitate at the bottom, shaking or stirring usually restores its performance.
We stand out as a trusted BTA supplier by combining quality, expertise, and customer-centric service:
• We use only premium raw materials and the latest manufacturing techniques, with real-time process monitoring to ensure each batch meets or exceeds industry standards.
• Our team of experts offers personalized support—whether you need help selecting the right grade, optimizing formulations, or troubleshooting logistics.
• We provide fast shipping through an efficient logistics network, ensuring your orders arrive on time, even for tight production schedules.
• With a focus on “customer trust and corporate values,” we prioritize transparency—sharing production insights and quality data to help you make informed decisions.
• Our competitive pricing balances quality and cost, ensuring you get a high-performance product without overstretching your budget.
