Comparing the on-site production of sodium hypochlorite with titanium anodes and the use of chlorine gas or pouring in large quantities of sodium hypochlorite is not only safe but also environmentally friendly. Using titanium anodes to produce sodium hypochlorite avoids the use of corrosive and dangerous chemicals such as hydrochloric acid.
The reaction principle of electrode preparation of sodium hypochlorite is to electrolyze sodium chloride dissolved in water. During electrolysis, sodium hypochlorite is formed. A suitable salt concentration is 3-5 g/L. To improve salt utilization, diaphragms can be used, which are commonly used in large equipment and swimming pools.
The overall response is expressed as follows:
NaCl + H2O → NaClO + H2↑
Electrode reaction:
Anode: 2Cl- – 2e → Cl2
Cathode: 2H+ + 2e → H2
Solution reaction: 2NaOH + Cl2 → NaCl + NaClO + H2O
Baoji Highstar Titanium Metal is a manufacturer specializing in the production and development of titanium anodes for many years. The company has a complete product line. The titanium anodes used in swimming pool disinfection mainly include the following products:
1. Ruthenium metal oxide coated titanium anode;
2. Iridium platinum oxide coated titanium anode.
The titanium anode for swimming pool disinfection has the following advantages: high current efficiency, corrosion resistance, long service life, stable electrolysis, high cost performance, high electrocatalytic performance, stable electrode size, and the distance between electrodes will not change during the process of electrolysis, ensuring electrolysis. The operation was carried out with the cell voltage stable.
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