论文部分内容阅读
1 配方: 间位硝基苯磺酸钠 90g/L几 乙二胺 120ml/L 柠蒙酸 90g/L pH值(用氨水调整) 10~11 温度(用水浴加热) 60~65℃ 2 原理 配制溶液里硝基可以氧化镍和镍铁合金的表面。乙二胺作为镍离子的络合剂,又可作溶液的pH值稳
1 formula: sodium nitrobenzene sodium 90g / L several ethylenediamine 120ml / L citric acid 90g / L pH value (adjusted with ammonia) 10 ~ 11 temperature (heated with a water bath) 60 ~ 65 ℃ 2 Principle Preparation Nitro in solution can oxidize the surface of nickel and nickel-iron alloys. Ethylenediamine as nickel complexing agent, but also for the pH of the solution stable