• 另一种2-巯基苯并噻唑先将溴甲烷氰化反应生成硫氰酸甲酯,然后硫氰酸甲酯与2-巯基苯并噻唑反应得到苯噻氰。

    It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.

    youdao

  • 可以防止一氧化碳烟雾氰化二氧化硫其他气体颗粒烟雾烟尘辐射热的危害。

    It also protects against carbon monoxide, smoke, hydrogen cyanide, sulfur dioxide, other gases, particulates, fumes, soot, ammonia, chlorine, phosphine, and radiant heat.

    youdao

  • 可以防止一氧化碳烟雾氰化二氧化硫其他气体颗粒烟雾烟尘辐射热的危害。

    It also protects against carbon monoxide, smoke, hydrogen cyanide, sulfur dioxide, other gases, particulates, fumes, soot, ammonia, chlorine, phosphine, and radiant heat.

    youdao

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