1. Analysis of Sterilization Mechanism

SDIC and TCCA are white crystals with high chlorine content and have a strong chlorine odor. Chlorinated isocyanuric acid disinfectant, a wide range of bactericidal spectrum, strong bactericidal ability, can kill various microorganisms. At present, it is widely used in medical care, food industry and water disinfection.

SDIC is divided into anhydrous SDIC (C3Cl2N3O3Na) and diaqueous SDIC (C3Cl2N3O3Na 2h2o). SDIC was rapidly hydrolyzed in water with or without crystal water to form a complex of six chlorinated cyanuric acid analogs and four non-chlorinated cyanuric acid analogs. TCCA (C3Cl3N3O3) also hydrolyzes in water, releasing cyanuric acid and hypochlorite.

2. Sterilization Test Design

The experiment was carried out in a 20 °c constant temperature room. Buffer test water containing chlorine and cyanobacteria was placed in sterile conical bottles. Bacteria were added to the test water and samples were extracted and neutralized at specified intervals. At the same time, the residual amount of initial and final available chlorine, total available chlorine, initial and final ph values were determined by controlled temperature method. Measurement of bacterial count in non-chlorinated water toxicity and sterility control measures are also incorporated into the testing procedure. The detection is repeated so that 2 to 4 tests are performed for each detection condition, based on repeated plate counts.

3. Research on Bactericidal Effect

The residual chlorine in sodium dichloroisocyanurate solution was determined as free soluble chlorine by orthogonal reagent arsenite method. The results showed that different concentrations of cyanuric acid had no significant effect on the variation of bacterial content. However, in the presence of cyanic acid. The free available chlorine measured by OTA method does not have the bactericidal properties in the absence of cyanuric acid. The results showed that PH affected the bactericidal properties of chlorine both in the presence of cyanic acid and in its presence. As the PH goes up. All else being equal, the time it takes for bacteria to die increases.

4. Summary

In summary, trichloroisocyanuric acid is a new generation of broad spectrum, high efficiency, low toxicity of fungicide, bleach and shrink resistant agent. Sodium dichloroisocyanurate is more powerful and effective in killing bacteria and bleaching bacteria. Almost all fungi, bacteria, virus spores are killed, coccidium oocysts also have a certain killing effect on killing hepatitis A, hepatitis B virus has a special effect on sexually transmitted viruses and HIV have a good disinfection effect, safe and convenient to use.

Mainly used for drinking water, industrial circulating water, swimming pools, restaurants, hotels, public places, families, hospitals, animal husbandry, eggs, fish disease prevention and plant protection and other efficient disinfection and sterilization. Widely used in food, dairy products, rice seed treatment, fruit preservation, cotton, linen, chemical fiber washing bleaching, wool shrinkage, daily chemical bleaching, wood mildew, paper making, battery materials and so on. Used for polyurethane synthetic leather shoes, rubber chlorination, organic synthesis industry, dry bleaching of clothing.