Properties of Benzotriazole Derivatives Metal Passivators


Benzotriazole is a white to light pink needle-like crystalline powder. Slightly soluble in cold water, soluble in hot water, methanol, ethanol, ether, acetone, benzene, toluene, chloroform and dimethylformamide. When dew is placed in the air, it gradually oxidizes and turns red. Distillation in a vacuum can explode.

good price and quality Benzotriazole Derivative Metal Deactivator

Similar to 1,2,3-triazoles, benzotriazoles also have three tautomers, namely two 1H-configurations and one 2H-configuration. Experimental data and quantum chemical results show that the above equilibrium of benzotriazoles in solution and solid state shifts almost completely to the 1H-side, i.e. the 1H-isomer is the more stable isomer. However, the 2H-form of benzotriazole in the photoexcited triplet state is more stable.
Benzotriazole is a useful anti-corrosion agent, especially for copper, which can form a layer of insoluble copper benzotriazole (I) with copper. It also has the same anti-corrosion effect on metal materials such as aluminum, cast iron, steel, nickel, and zinc. It can be added to antifreeze for automobile engines, lubricating oil for grinding and cutting, and cleaning fluid for copper and copper alloys to prevent corrosion and improve. The purpose of the corrosion inhibition effect.

Benzotriazole, 5-chlorobenzotriazole and 6-nitrobenzotriazole are all effective antifogging agents and stabilizers in photosensitive materials, and are widely used in photographic paper emulsions and developing solutions.

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