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Time: 2018年12月30日   |  Visit:


Benzotriazole product USES and production methods

Product use

Used in anti-rust oil (fat) products, mainly used in copper and copper alloy gas phase corrosion inhibitor circulating water treatment agent, automobile antifreeze, photographic antifogging agent, polymer stabilizer, plant growth regulator, lubricant additive, ultraviolet absorber, etc.

Benzotriazole product USES and production methods
 

  產品用途

 

  用于防銹油(脂)類產品中,多用于銅及銅合金的氣相緩蝕劑循環水處理劑,汽車防凍液,照相防霧劑,高分子穩定劑,植物生長調節劑,潤滑油添加劑,紫外線吸收劑等.本品也可與多種阻垢劑,殺菌滅藻劑配合使用. 

 


Benzotriazole product USES and production methods

Production methods

By adjacent benzene amine react with sodium nitrite. Adding o-phenylendiamine 50 ℃ dissolve in water, adding glacial acetic acid, cooled to 5 ℃, stir in sodium nitrite reaction. The reactants gradually become green, the temperature rose to 70-80 ℃, the solution becomes nacarat, place 2 h at room temperature, cooling, filtering out crystallization, use cold water washing, dry rough, coarse product vacuum distillation, the 201-204 ℃ (2.0 kPa) fractions, reoccupy benzene recrystallization, available product melting point is 96-97 ℃, the yield was about 80%. There was reported with sodium nitrite condensation of carbendazim wastewater treatment and by-products of benzene and three nitrogen Azole.


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