Total residual chlorine is the residual chlorine left in water after free chlorine and bonded chlorine are added to water for a certain time. So where does all this residual chlorine in the water come from?

Chlorine is an effective bactericide, and most water plants use it to kill bacteria. So in order to ensure the sterilization effect during the delivery process, a little residual chlorine will be retained in the water during the factory time. But if too much residual chlorine remains in the water, it can be harmful to the human body. Excess chlorine can bring harmful substances such as chloroform, and common symptoms are skin damage, such as itching or inflammation. Wash vegetables and fruits with water containing residual chlorine. Will destroy vegetables and fruits, vitamins, minerals and other nutrients, seriously affect the human body’s absorption of nutrients. If this is the case for a long time, the long-term use of water containing residual chlorine will make the skin bleach, hair dry, broken, split and other phenomena, if serious, it will increase the chance of cancer.

Is It Necessary to Test the Residual chlorine in the Water?

In fact, it is clear to see the above content, it is necessary to monitor the residual chlorine in water! As for what instruments are used to detect residual chlorine in water, many manufacturers produce such equipment. Among them, Hangzhou Modi is a professional manufacturer of water quality online monitoring equipment, and RCl900 total residual chlorine online analyzer is one of its main products. After water sample and anti-interference agent are injected into the reactor automatically by photometric method, characteristic chromogenic agent is added automatically for chromogenic reaction, and the absorbance of the reactants is measured. The online analyzer can directly measure the total residual chlorine content in water through the absorbance value.