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Stabilized chlorine dioxide disinfection solution and its preparation method

A chlorine dioxide, stability technology, applied in the field of stable chlorine dioxide disinfectant and its preparation, can solve the problems that chlorine dioxide disinfectant cannot be stored for a long time, deepening, etc., to promote stability, inhibit reaction, reduce reaction Effect

Active Publication Date: 2012-08-08
GUANGDONG HUANKAI MICROBIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the introduction of hydrogen ions in the system during the process of adjusting the pH value with acid, the hydrogen ions and sodium chlorite will react slowly to generate chlorine dioxide, so that the color of the product will gradually deepen during storage, and the content of chlorine dioxide will gradually increase. The chlorine dioxide disinfectant cannot be stored for a long time, and the chlorine dioxide content is <2.0% after being placed for 1 to 2 months

Method used

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  • Stabilized chlorine dioxide disinfection solution and its preparation method

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Embodiment 1

[0031] A stable chlorine dioxide disinfectant solution, component A is a stable sodium chlorite solution, and every 100 mL of stable sodium chlorite solution contains the following components by weight: sodium chlorite 6g, sodium perborate 0.2 g, acetamide 0.3 g, sodium metasilicate 0.05 g, EDTA-4Na 0.05 g, dipotassium hydrogen phosphate 0.1 g, potassium dihydrogen phosphate 0.3 g, appropriate amount of zinc chloride, and the balance is water; component B is 50wt% aqueous citric acid solution.

[0032] The above-mentioned stable chlorine dioxide disinfectant preparation method comprises the steps:

[0033] 1) Preparation of component A: Dissolve sodium chlorite in 70 mL of water, adjust the pH to 9.20 with zinc chloride, add sodium perborate and acetamide, stir and dissolve evenly, let stand, filter, and add the remaining Components, make up the remaining amount of water until the total solution is 100mL;

[0034] 2) When in use, mix component A and component B at a volume r...

Embodiment 2

[0036] A stable chlorine dioxide disinfectant, A component is a stable sodium chlorite solution, and every 100 mL of a stable sodium chlorite solution contains the following components by weight: 2 g of sodium chlorite, sodium percarbonate 0.05 g, 0.05 g of acetamide, 0.2 g of sodium metasilicate, 0.1 g of tetrasodium hydroxyethylidene diphosphonate, 0.2 g of dipotassium hydrogen phosphate, 0.3 g of potassium dihydrogen phosphate, an appropriate amount of zinc acetate, and the balance is water; B component is 5wt% hydrochloric acid aqueous solution.

[0037] The above-mentioned stable chlorine dioxide disinfectant preparation method comprises the steps:

[0038] 1) Preparation of component A: Dissolve sodium chlorite in 75 mL of water, adjust the pH to 9.00 with zinc acetate, add sodium percarbonate and acetamide, stir to dissolve evenly, let stand, filter, and add the remaining components to the filtrate Make up the remaining amount of water until the total solution is 100mL...

Embodiment 3

[0041] A stable chlorine dioxide disinfectant, A component is a stable sodium chlorite solution, and every 100 mL of a stable sodium chlorite solution contains the following components by weight: 5 g of sodium chlorite, sodium perborate 0.2 g, acetamide 0.1 g, sodium metasilicate 0.3 g, EDTA-2Na 0.1 g, disodium hydroxyethylidene diphosphonate 0.1 g, dipotassium hydrogen phosphate 0.05 g, potassium dihydrogen phosphate 0.05 g, appropriate amount of zinc chloride and zinc acetate, and the balance is water; component B is mixed with 5wt% hydrochloric acid aqueous solution and 50wt% citric acid aqueous solution at a volume ratio of 1:1.

[0042] The above-mentioned stable chlorine dioxide disinfectant preparation method comprises the steps:

[0043]1) Preparation of component A: Dissolve sodium chlorite in 70 mL of water, adjust the pH to 9.10 with a mixture of zinc chloride and zinc acetate at a mass ratio of 5:1, add sodium perborate and acetamide, and stir to dissolve evenly ,...

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Abstract

The invention discloses a stabilized chlorine dioxide disinfection solution and its preparation method. The disinfection solution is composed of component A and component B, wherein component A is stabilized sodium chlorite solution consisting of chlorite, a stabilizing agent, a complexing agent, a pH stabilizing agent, and the balance a pH conditioning agent and water; component B is an activating agent, which can be at least one of citric acid and hydrochloric acid. The product of the invention has the advantages of stability, long shelf-life, and a validity period up to 2 years, and can be used as a disinfectant. The disinfection solution of the invention has simple process and convenient usage. In the invention, the original mode of pH value adjusting by acid is changed, and zinc chloride and zinc acetate are employed to remove sodium hydroxide in raw materials and reach the purpose of pH value adjusting. Simultaneously, zinc acetate and sodium hydroxide generate no amphoteric substance, and the actual operation is easier.

Description

technical field [0001] The invention belongs to the field of disinfectants, in particular to a stable chlorine dioxide disinfectant and a preparation method thereof. Background technique [0002] Stable chlorine dioxide can not only kill microorganisms, hepatitis B virus and other epidemic viruses, but also decompose residual bacterial tissue, has continuous sterilization and disinfection capabilities, and does not generate carcinogenic chloroform, which is an efficient and safe disinfection Disinfectant, recognized by the World Health Organization as an AI-level disinfectant. Chlorine dioxide has excellent performance and is widely used in a wide range of fields. It not only has bactericidal ability, but also has various functions such as bleaching, antisepsis, fresh-keeping, deodorization and decolorization. It has been widely used in aquaculture, drinking water disinfection, medical hygiene, food preservation, industrial water treatment, etc. Recognized as an ideal repl...

Claims

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Application Information

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IPC IPC(8): A01N59/00A01N25/22A01P1/00
Inventor 宋金武邓金花吴清平陈维
Owner GUANGDONG HUANKAI MICROBIAL SCI & TECH
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