Benzotriazole
| Formula: | C₆H₅N₃ |
| CAS Number: | 95-14-7 |
| EC Number (EINECS): | 202-394-1 |
| HS Code: | 29339990 |
| UN Number: | Not classified as dangerous goods (varies by region) |
| IUPAC Name: | 1H-Benzotriazole |
| Also Known As: | BTA; 1,2,3-Benzotriazole |
| Molecular Weight, g/mol: | 119.12 |
Typical Specifications
| Appearance: | White to off-white crystalline powder |
| Odor: | Odorless to faint characteristic odor |
| Melting Point, °C: | 96–100 |
| Boiling Point, °C: | 204 (decomposes) |
| Density, g/cm³ (at 20°C): | 1.36 |
| Flash Point, °C: | 200+ |
| pH (1% solution): | ~5.5–6.0 |
| Purity, %: | ≥99 |
| Grades Available: | Industrial, Technical, High Purity |
| Packaging: | 25kg bags, 500kg jumbo bags, fiber drums |
Applications / Uses
Primary Applications
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Corrosion inhibitor for copper, brass, and alloys
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Additive in coolants, lubricants, and antifreeze formulations
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Protectant in electronic and automotive industries
Secondary Applications
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UV stabilizer in plastics and coatings
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Used in silver polish and cleaning formulations
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Intermediate in pharmaceuticals and specialty chemicals
End Industries Served: Automotive, Electronics, Lubricants, Coolants, Plastics, Coatings, Metalworking, Pharmaceuticals
Safety & Handling Information
Hazard Class (GHS): Eye Irritant (Category 2), Aquatic Chronic (Category 3)
Hazard Statements (H-Codes):
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H319: Causes serious eye irritation
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H412: Harmful to aquatic life with long lasting effects
Precautionary Statements (P-Codes):
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P264: Wash thoroughly after handling
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P280: Wear protective gloves/eye protection
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P273: Avoid release to the environment
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P305 + P351 + P338: IF IN EYES – rinse cautiously with water, remove contact lenses if present
Storage Conditions
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Store in cool, dry, ventilated area
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Keep container tightly sealed
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Avoid direct sunlight and moisture
Transport Information
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ADR/RID: Not regulated
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IMDG: Not regulated
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IATA: Not regulated