• 另一种2-巯基苯并噻唑先将溴甲烷氰化钠反应生成硫氰酸氯甲酯,然后硫氰酸氯甲酯与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

  • 国际金价下跌导致氰化钠需求下降价格下挫,局部地区中国品级片状一定需求。

    The drop of global gold price results in the decrease of demand and the fall of price for sodium cyanide. However, the Chinese high grade flake product is still in demand at some regions.

    youdao

  • 氰化钠污染事故处置介绍了监测方法,如何做好突发性环境污染事故的处置监测提出对策

    The paper takes the polluting accident treatment of sodium cyanide as a case, then puts forward the countermeasures of how to treat and monitor the abruptly environmental polluting accident.

    youdao

  • 巯基乙酸两个极性基团COOHSH具有同硫化强烈反应特性代替氰化钠理想药剂

    COOH and -SH two polar groups in mercaptoacetic sodium acid have properties of strong reaction to sulphide ores. It is the most satisfactory agent for replacing sodium cyanide to suppress impurities.

    youdao

  • 本文介绍了将氰化钠镀锌溶液转换氯化钾镀锌溶液镀锌工艺过程,从工艺、健康环保成本等方面进行阐述

    The paper introduced the technics process conversion of sodium cyanide galvanization solution to potassium chloride solution. It expounded in technics, health, entironment, cost, etc.

    youdao

  • 工艺可能涉及熔化氰化钠混合物带有活性固体物质活性炭焦炭等的固体碳,气体油性渗碳剂,还有干法氰化。

    The process may involve the use of molten sodium cyanide mixtures; pack carburizing with activated solid material such as charcoal or coke, gas or oil carburizing, and dry cyaniding.

    youdao

  • 工艺可能涉及熔化氰化钠混合物带有活性固体物质活性炭焦炭等的固体碳,气体油性渗碳剂,还有干法氰化。

    The process may involve the use of molten sodium cyanide mixtures; pack carburizing with activated solid material such as charcoal or coke, gas or oil carburizing, and dry cyaniding.

    youdao

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