1,2,3-Benzotriazole

Description

1. Product Overview

1,2,3-Benzotriazole (BTA) is a high-purity, multifunctional organic corrosion inhibitor and metal passivator, essential for protecting copper and copper-alloy surfaces in aqueous and oil-based systems. Its primary industrial application lies in preventing surface tarnishing and electrochemical corrosion in closed-loop cooling circuits, aviation hydraulic fluids, and metalworking fluids. The key value proposition is a superior protective film formation at low ppm concentrations, drastically reducing downtime and metal replacement costs. Strategically, BTA is indispensable for industries transitioning to higher-performance coolants and longer-life industrial assets, making it a critical procurement category for asset-intensive operations.

2. Key Specifications & Technical Characteristics

• Chemical composition: 1,2,3-Benzotriazole (C₆H₅N₃); CAS No. 95-14-7

• Purity grade: ≥99.5% (Technical Grade) / ≥99.9% (Pharma/Electronics Grade available upon request)

• Physical form: White to off-white crystalline powder or granular prills (low-dust formulation)

• Physical characteristics:

  • Molecular weight: 119.13 g/mol

  • Melting point: 97–99°C

  • Bulk density (powder): 450–550 kg/m³

  • Bulk density (granules): 600–700 kg/m³

• Solubility: 19–20 g/L in water (20°C); freely soluble in alcohols, benzene, and glycols

• Packaging options: 25 kg multi-layer kraft/PE bags, 500 kg FIBCs (big bags), 1,000 kg palletized shrink-wrapped units

• Shelf life: 36 months in original unopened packaging, stored below 30°C in dry, ventilated area

3. Core Industrial Applications

• Primary industries: Chemical processing, HVAC & industrial cooling, automotive & aviation fluids, metalworking, water treatment, electronics manufacturing.

• Specific operational use cases:

  • Closed-loop cooling systems: Prevents copper corrosion in engine jackets and heat exchangers – extends equipment life by >40% versus nitrite-only inhibitors.

  • Aircraft de-icing & hydraulic fluids (MIL-spec): Stabilizes copper alloy components against thermal oxidation.

  • Metalworking fluids (MWFs): Eliminates “staining” on machined brass/copper parts, reducing rework rates by up to 25%.

  • Electronics cleaning: As a passivation agent for copper traces after etching.

• Why BTA outperforms alternatives: Unlike azole-free inhibitors, BTA forms a chemisorbed, self-repairing polymeric film (Cu-BTA complex) that withstands pH 5–9 and temperatures up to 90°C. Competing inhibitors (e.g., MBT) show 30% lower film stability under shear flow conditions.

4. Competitive Advantages

• Quality consistency: Batch-to-batch purity variance <0.2%; each shipment includes COA with HPLC, melting point, and moisture analysis.

• Supply reliability: Dual-sourced production lines (Asia & Europe) with 5,000 MT annual capacity; safety stock equivalent to 90 days of forecast demand.

• Logistics capability: Direct container loading from plant to any major global port; average lead time 14–21 days FOB; expedited air freight available for 500 kg+.

• Price competitiveness: Volume-based tiered pricing with long-term contracts (12–24 months) offering fixed escalation clauses – removes spot market volatility.

• Sustainability: 100% recyclable packaging; non-halogenated, non-PFAS chemistry; production process with zero liquid discharge (ZLD) certified.

• Technical support: Dedicated application engineers available for dosage optimization (typically 2–10 ppm in water systems); MSDS, TDS, and REACH/EPA compliance documentation included.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 MT (standard for industrial direct procurement)

• Bulk loading capacity per 20FT container: 18–20 MT (palletized bags)
  Per 40FT container: 25 MT (FIBCs)

• Incoterms offered: FOB, CIF, CFR, EXW (buyer selection)

• Payment terms: Letter of Credit (L/C at sight) or T/T advance for initial orders; net 30 days for approved corporate accounts after credit review