The following is a comprehensive introduction to Sodium benzotriazole/BTAS CAS 15217-42-2:
Basic Information
Chemical characteristics
Molecular formula: C6H4Na, molecular weight: 141.1134
Appearance: Light yellow viscous transparent liquid (40% -50% concentration) 37 or solid powder (99% purity) 1Solubility: miscible with water, lower alcohols, ethylene glycol, and also soluble in organic solvents such as chloroform and benzene
CAS number: 15217-42-2
Density: 1.13-1.19 g/ml (liquid, 24 ℃)
PH value: 10% aqueous solution is 11.2-11.7 (alkaline)
Core functions
Metal protection: adsorbs onto the surface of copper, brass, bronze and other metals to form a protective film, inhibiting atmospheric and medium corrosion.
Ionic barrier: prevents copper ion migration from causing electrochemical corrosion of metals such as aluminum and iron34.Environmental compatibility: Non toxic, non corrosive, known as green corrosion inhibitor46.
Application Fields
Industrial media additives
Corrosion inhibiting components of coolant, antifreeze, and metalworking fluid 13Copper ion stabilizer for synthetic detergents and heat transfer systems 48
Surface treatment
Water based anti rust coatings and oil additives to prevent metal discoloration and deterioration 68
Precautions for use
Compatibility limitation: The alkaline system has good compatibility (pH ≥ 12), but poor compatibility with acidic corrosion inhibitors.
Storage requirements: Seal and store in the dark to avoid failure.