Ponzano Gian Piero
Docente di 'Processi Elettrochimici', DICHEP, Facoltà di Ingegneria, Università di Genova, Genova, Italy.
Contrib Nephrol. 2007;154:7-23. doi: 10.1159/000096810.
This paper analyses the evolution of hypochlorite as strong disinfectant. The electrochemical production of hypochloric acid or sodium hypochlorite represents the best method to obtain a pure product. To have a good production (as quality and quantity), it is necessary to optimize the electrochemical process with the optimal of electrocatalytic electrodes (cathode and anode) the gap between electrodes, the temperature of electrochemical cell. It is very important for the product stability during a long period, avoid the presence of heavy metal ions and particulate as impurity-like carbon micro-powders in suspension. It is necessary a rigorous control of the pH of final product to have the optimal disinfection power of hypochlorite solution. The most stable sodium hypochlorite solutions are those that show the following characteristics: (1) low concentration of hypochlorite; (2) pH -> 11.5 and <13; (3) absence of graphite particulate and metallic ions; (4) storage at controlled temperature <30 degrees C. Packing in containers impermeable to light.
本文分析了次氯酸盐作为强消毒剂的演变。通过电化学方法生产次氯酸或次氯酸钠是获得纯产品的最佳方法。为了实现良好的生产（在质量和数量方面），有必要通过优化电催化电极（阴极和阳极）、电极之间的间隙以及电化学电池的温度来优化电化学过程。这对于产品在长时间内的稳定性非常重要，要避免悬浮液中存在重金属离子和诸如碳微粉等类似杂质的颗粒。必须严格控制最终产品的pH值，以使次氯酸盐溶液具有最佳消毒能力。最稳定的次氯酸钠溶液具有以下特征：（1）次氯酸盐浓度低；（2）pH值 -> 11.5且<13；（3）不存在石墨颗粒和金属离子；（4）在<30摄氏度的受控温度下储存。采用不透光的容器进行包装。
