Quaternary ammonium salt complex iodine disinfectant and preparation method thereof
The technology of a disinfectant and a quaternary ammonium salt is applied in the field of quaternary ammonium salt complexed iodine disinfectant and its preparation, and can solve the problems of affecting the sterilization effect of the quaternary ammonium salt complexed iodine, volatile iodine, and easy precipitation of iodine, etc. Achieve the effect of fast disinfection and sterilization, long duration of sterilization and bacteriostasis, and extended validity period
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Embodiment 1
[0024] The preparation of quaternary ammonium complex iodine disinfectant comprises the steps:
[0025] (1) Put 400 mL of absolute ethanol in a reactor with a reflux condenser, stir, and control the temperature at 50°C, then put 20 g of decyl ammonium bromide and 20 g of decyl ammonium chloride into the reactor, and stir until the reaction liquid After becoming transparent, add 10g of elemental iodine, dropwise add 70g of isooctyl alcohol polyoxyethylene ether JFC-E, then raise the temperature to 85°C, and wait for 2-3 hours until the reaction solution becomes transparent.
[0026] (2) Lower the temperature of the above reaction system to 60°C, add 1 g of potassium iodide into the reactor, stir until the reaction solution becomes transparent, then remove the solvent ethanol by rotary evaporation under reduced pressure, cool down, let stand, and discharge to obtain the product.
Embodiment 2
[0028] The preparation of quaternary ammonium complex iodine disinfectant comprises the steps:
[0029] (1) Put 180mL of absolute ethanol in a reactor with a reflux condenser, stir, and control the temperature at 40°C, then add 7.5g of benzalkonium bromide and 7.5g of bis-octyldimethylammonium chloride In the reactor, after stirring until the reaction liquid is transparent, add 3 g of elemental iodine, dropwise add 45 g of isooctyl alcohol polyoxyethylene ether JFC-E, and then raise the temperature to 80°C for 2-3 hours until the reaction liquid is transparent.
[0030] (2) Lower the temperature of the above reaction system to 50°C, add 0.1g of potassium iodate and 0.1g of citric acid into the reactor, stir until the reaction solution is transparent, then remove the solvent ethanol by rotary evaporation under reduced pressure, after cooling, let stand , out of the box.
Embodiment 3
[0032] The preparation of quaternary ammonium complex iodine disinfectant comprises the steps:
[0033] (1) Put 200mL of absolute ethanol in a reactor with a reflux condenser, stir, and control the temperature at 45°C, then put 10g of decylmethylammonium bromide and 10g of bis-octyldimethylammonium chloride into the reactor , stir until the reaction liquid is transparent, add 4g of elemental iodine, dropwise add fatty alcohol polyoxyethylene ether AEO-955g, then raise the temperature to 80°C, and wait for 2-3 hours until the reaction liquid is transparent.
[0034] (2) Lower the temperature of the above reaction system to 55°C, add 0.2 g of potassium iodide and 0.2 g of citric acid into the reactor, stir until the reaction solution is transparent, then remove the solvent ethanol by rotary evaporation under reduced pressure, after cooling, let stand, and You get it right away.
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