CN111972431A - Organic stable chlorine dioxide disinfectant and preparation method thereof - Google Patents
Organic stable chlorine dioxide disinfectant and preparation method thereof Download PDFInfo
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- CN111972431A CN111972431A CN202010832344.4A CN202010832344A CN111972431A CN 111972431 A CN111972431 A CN 111972431A CN 202010832344 A CN202010832344 A CN 202010832344A CN 111972431 A CN111972431 A CN 111972431A
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- chlorine dioxide
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
Abstract
The invention relates to an organic stable chlorine dioxide disinfectant, which comprises the following raw materials in parts by weight: 50-100 parts of desalted water, 0.1-0.2 part of sodium chlorate and/or sodium chlorite, 0.08-0.16 part of activating agent, 1.5-3.0 parts of organic complexing agent and 0.001-0.002 part of inorganic complexing agent. The invention has the beneficial effects that: the method is provided for the application of the chlorine dioxide disinfectant, the field preparation is not needed, the disinfectant can be sterilized and disinfected under a neutral condition, and the disinfectant has certain stability. The organic complexing agent contained in the organic stable chlorine dioxide disinfectant is an organic compound with power supply capacity, and can be chelated with chlorine dioxide electron-deficient molecules, namely the organic compound with the power supply capacity is chelated with chlorine dioxide, and the chelated ring contains a plurality of atoms and is very stable, and the relatively stable structure forms a buffer system in a weak acid environment, so that chlorine dioxide is continuously and slowly released, and the effects of oxidation and disinfection are exerted.
Description
Technical Field
The invention relates to a chlorine dioxide disinfectant, in particular to an organic stable chlorine dioxide disinfectant and a preparation method thereof.
Background
Chlorine dioxide has strong sterilizing, disinfecting and bleaching functions. In the early 70 s of the 20 th century, stable chlorine dioxide was developed and developed successfully. The method is widely researched and popularized in industrially developed countries such as the United states, Canada, Germany, Japan and the like, and the application field relates to the industries such as water treatment, paper making, food, medical treatment, sanitation, cultivation and the like. Chlorine dioxide is the fourth generation disinfectant which is internationally accepted at present, and is listed as an AI-level broad-spectrum, high-efficiency and safe disinfectant by the World Health Organization (WHO) and the world Food and Agriculture Organization (FAO), because the chlorine dioxide is active in property, when the chlorine dioxide is irradiated or meets substances which can promote the oxidation to occur, the chlorine dioxide is promoted to decompose or react, and the explosion is easily caused, so the chlorine dioxide is generally prepared into a chlorine dioxide stable solution or fixed stable chlorine dioxide during the production, storage, transportation and the like of the chlorine dioxide, and is activated when in use.
The stable chlorine dioxide is a novel high-efficiency disinfectant with good sterilization effect and wide application range and does not have harmful effect on the environment, and is one of the substitutes of chlorine-containing disinfectants. The common stable chlorine dioxide is generated by adding an activating agent to raw materials on site or by putting raw materials and the activating agent packaged in one unit into water on site. The field needs activated products, and unsafe risks exist in the processes of production, storage, transportation and use.
Disclosure of Invention
The invention aims to provide an organic stable chlorine dioxide disinfectant and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an organic stable chlorine dioxide disinfectant comprises the following raw materials in parts by weight: 50-100 parts of desalted water, 0.1-0.2 part of sodium chlorate and/or sodium chlorite, 0.08-0.16 part of activating agent, 1.5-3.0 parts of organic complexing agent and 0.001-0.002 part of inorganic complexing agent.
The organic stable chlorine dioxide disinfectant comprises, by weight, 65-85 parts of desalted water, 0.12-0.18 part of sodium chlorate and/or sodium chlorite, 0.1-0.15 part of an activating agent, 2-2.5 parts of an organic complexing agent and 0.0012-0.0018 part of an inorganic complexing agent.
The organic stable chlorine dioxide disinfectant comprises, by weight, 75 parts of desalted water, 0.15 part of sodium chlorate and/or sodium chlorite, 0.12 part of an activating agent, 2.2 parts of an organic complexing agent and 0.0015 part of an inorganic complexing agent.
Desalted water is water which has been freed or reduced to a certain extent from strong electrolytes which are easy to remove, the residual salt content being between 1 and 5 mg/L.
Sodium chlorate, usually white or yellowish equiaxed crystals, is readily soluble in water, slightly soluble in ethanol, strongly oxidizable in acidic solution, and unstable in the presence of acids to release chlorine dioxide. The chlorine dioxide, sodium chlorite and perchlorate can be produced, and the chlorine dioxide, sodium chlorite and perchlorate are transported separately, and the containers are ensured not to leak, collapse, fall and damage in the transportation process.
Sodium chlorite, white or slightly yellowish green powder or granular crystal, is a strong oxidant and releases chlorine dioxide gas when meeting acid.
The organic stable chlorine dioxide disinfectant is characterized in that the purity of the sodium chlorate is 96% -98%, and the purity of the sodium chlorite is 78% -80%; preferably, the purity of the sodium chlorate is 97% and the purity of the sodium chlorite is 79%.
The organic stable chlorine dioxide disinfectant is preferably at least one of hydrochloric acid, citric acid, glucose or cellulose.
The above-mentioned organic stable chlorine dioxide disinfectant, as a preferred embodiment, the organic complexing agent is one of aminoethanol, ethylene diamine tetraacetic acid or polyvinylpyrrolidone; the inorganic complexing agent is one of sodium carbonate, sodium percarbonate or sodium perborate.
In a second aspect of the present application, there is provided a method for preparing an organic stable chlorine dioxide disinfectant, comprising the steps of:
(1) mixing and stirring desalted water, sodium chlorate and/or sodium chlorite and an activating agent uniformly under the heating condition to obtain a mixture;
(2) and adding an organic complexing agent into the mixture, uniformly mixing and stirring, and dropwise adding an inorganic complexing agent to adjust the pH value to be weakly acidic, thereby obtaining the organic stable chlorine dioxide disinfectant.
In the above method for preparing an organic stable chlorine dioxide disinfectant, as a preferred embodiment, in step (1), the heating temperature is 30-40 ℃, preferably, the heating temperature is 30 ℃.
In the preparation method of the organic stable chlorine dioxide disinfectant, as a preferred embodiment, in the step (2), the inorganic complexing agent is added dropwise to adjust the pH value to 6-7.
Compared with the prior art, the invention has the beneficial effects that: the method is provided for the application of the chlorine dioxide disinfectant, the field preparation is not needed, the disinfectant can be sterilized and disinfected under a neutral condition, and the disinfectant has certain stability.
The organic complexing agent contained in the organic stable chlorine dioxide disinfectant is an organic compound with power supply capacity, and can be chelated with chlorine dioxide electron-deficient molecules, namely the organic compound with the power supply capacity is chelated with chlorine dioxide, and the chelated ring contains a plurality of atoms and is very stable, and the relatively stable structure forms a buffer system in a weak acid environment, so that chlorine dioxide is continuously and slowly released, and the effects of oxidation and disinfection are exerted.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The organic stable chlorine dioxide disinfectant disclosed by the embodiment 1 comprises the following raw materials in parts by weight: 50g of desalted water, 0.1g of sodium chlorate, 0.08g of activating agent, 1.5g of organic complexing agent and 0.001g of inorganic complexing agent;
the preparation method of the organic stable chlorine dioxide disinfectant, which is described in the embodiment 1, comprises the following steps:
(1) mixing and stirring desalted water, sodium chlorate and an activating agent uniformly at the heating temperature of 30 ℃ to obtain a mixture;
(2) and adding an organic complexing agent into the mixture, uniformly mixing and stirring, and dropwise adding an inorganic complexing agent to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
Example 2
The organic stable chlorine dioxide disinfectant disclosed by the embodiment 2 comprises the following raw materials in parts by weight: 50 parts of desalted water, 0.1 part of sodium chlorate with the purity of 96%, 0.08 part of hydrochloric acid, 1.5 parts of polyvinylpyrrolidone and 0.001 part of sodium percarbonate.
The preparation method of the organic stable chlorine dioxide disinfectant, which is described in the embodiment 2, comprises the following steps:
(1) mixing and stirring desalted water, sodium chlorate and hydrochloric acid uniformly at the heating temperature of 30 ℃ to obtain a mixture;
(2) and adding polyvinylpyrrolidone into the mixture, uniformly mixing and stirring, and dropwise adding sodium percarbonate to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
Example 3
The organic stable chlorine dioxide disinfectant comprises the following raw materials in parts by weight: 65g of desalted water, 0.15g of sodium chlorite with the purity of 78%, 0.10g of citric acid, 2.0g of polyvinylpyrrolidone and 0.001g of sodium carbonate.
The preparation method of the organic stable chlorine dioxide disinfectant, which is described in the embodiment 3, comprises the following steps:
(1) mixing and stirring desalted water, sodium chlorite and citric acid uniformly at the heating temperature of 35 ℃ to obtain a mixture;
(2) and adding polyvinylpyrrolidone into the mixture, uniformly mixing and stirring, and dropwise adding sodium carbonate to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
Example 4
The organic stable chlorine dioxide disinfectant comprises the following raw materials in parts by weight: 75g of desalted water, 0.15g of sodium chlorate with the purity of 98%, 0.15g of glucose, 2.5g of ethylenediamine tetraacetic acid and 0.0015g of sodium perborate.
The preparation method of the organic stable chlorine dioxide disinfectant, which is described in the embodiment 4, comprises the following steps:
(1) mixing and stirring desalted water, sodium chlorate and glucose uniformly at the heating temperature of 38 ℃ to obtain a mixture;
(2) adding ethylene diamine tetraacetic acid into the mixture, mixing and stirring uniformly, and dropwise adding sodium perborate to adjust the pH value to 7 to obtain the organic stable chlorine dioxide disinfectant.
Example 5
The organic stable chlorine dioxide disinfectant comprises the following raw materials in parts by weight: 100g of desalted water, 0.2g of sodium chlorite with the purity of 80%, 0.16g of hydrochloric acid, 3.0g of polyvinylpyrrolidone and 0.002g of sodium percarbonate.
The method for preparing the organic stable chlorine dioxide disinfectant comprises the following steps:
(1) mixing and stirring desalted water, sodium chlorite and hydrochloric acid uniformly at the heating temperature of 40 ℃ to obtain a mixture;
(2) and adding polyvinylpyrrolidone into the mixture, uniformly mixing and stirring, and dropwise adding sodium percarbonate to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
Comparative example 1
The organic stable chlorine dioxide disinfectant disclosed in comparative example 1 comprises the following raw materials in parts by weight: 65g of desalted water, 0.15g of sodium chlorite with the purity of 78%, 0.10g of citric acid, 0.5g of polyvinylpyrrolidone and 0.001g of sodium carbonate.
Comparative example 1 a method of preparing an organic stable chlorine dioxide disinfectant comprising the steps of:
(1) mixing and stirring desalted water, sodium chlorite and citric acid uniformly at the heating temperature of 35 ℃ to obtain a mixture;
(2) and adding aminoethanol into the mixture, uniformly mixing and stirring, and dropwise adding sodium carbonate to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
Comparative example 2
Comparative example 2 the organic stable chlorine dioxide disinfectant comprises the following raw materials in parts by weight: 65g of desalted water, 0.15g of sodium chlorite with the purity of 78%, 0.10g of citric acid, 10g of polyvinylpyrrolidone and 0.0006g of sodium carbonate.
Comparative example 2 a method of preparing an organic stable chlorine dioxide disinfectant comprising the steps of:
(1) mixing and stirring desalted water, sodium chlorite and citric acid uniformly at the heating temperature of 35 ℃ to obtain a mixture;
(2) and adding aminoethanol into the mixture, uniformly mixing and stirring, and dropwise adding sodium carbonate to adjust the pH value to 6 to obtain the organic stable chlorine dioxide disinfectant.
The application relates to a stability research of an organic stable chlorine dioxide disinfectant:
1: detection equipment
1.1. Detecting a sample: an organic stable chlorine dioxide disinfectant as described herein and an organic stable chlorine dioxide disinfectant as described in comparative examples 1 and 2; the application discloses an organic stable chlorine dioxide disinfectant as a test group, wherein an organic stable chlorine dioxide disinfectant is used as a control group 1 in comparative example 1, and an organic stable chlorine dioxide disinfectant is used as a control group 2 in comparative example 2
1.2. Micro burette (5ml0.02 graduation)
1.3. Sodium thiosulfate titration solution (0.1mol/L F ═ 1.000)
1.4. Thermostat 54 deg.C
2. Detection method
According to the disinfection technical specification, 2002 edition 2.2.1.2.1 and the disinfection technical specification, 2002 edition 2.2.3; placing period: 2020.07.08 to 2020.07.22
Remarking: and (3) according to a residual chlorine determination principle, residual chlorine reacts with potassium iodide in an acid solution to release iodine, and then the amount of the residual chlorine is determined by titration with a sodium thiosulfate standard solution.
The results are shown in table 1:
table 1 stability studies of an organic stable chlorine dioxide disinfectant as described herein
| Before standing (%) | After standing (%) | Rate of decrease (%) | Standard rate of decrease (%) | |
| Test group | 0.299 | 0.295 | 1.34 | 10 |
| Control group 1 | 0.298 | 0.256 | 14 | Fail to be qualified |
| Control group 2 | 0.299 | 0.296 | 1 | Qualified |
As can be seen from table 1, the effective chlorine stability of an organic stable chlorine dioxide disinfectant as described herein meets the specifications for disinfection specification 2002 edition 2.2.3 for 1 year.
As can be seen from table 1, the addition amount of the organic complexing agent in the control group 1 is lower than the range described by the addition amount of the organic complexing agent in the present application, and the low amount does not play a good role in stabilizing chlorine dioxide; the addition amount of the organic complexing agent in the control group 2 is larger than the range of the organic complexing agent, the effect of stabilizing the chlorine dioxide is basically the same as the effect of the organic complexing agent, but the cost of the organic complexing agent is far higher than that of the organic complexing agent.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. An organic stable chlorine dioxide disinfectant is characterized in that: the feed comprises the following raw materials in parts by weight: 50-100 parts of desalted water, 0.1-0.2 part of sodium chlorate and/or sodium chlorite, 0.08-0.16 part of activating agent, 1.5-3.0 parts of organic complexing agent and 0.001-0.002 part of inorganic complexing agent.
2. An organic stable chlorine dioxide disinfectant as set forth in claim 1, wherein: the feed comprises the following raw materials in parts by weight: 65-85 parts of desalted water, 0.12-0.18 part of sodium chlorate and/or sodium chlorite, 0.1-0.15 part of activating agent, 2-2.5 parts of organic complexing agent and 0.0012-0.0018 part of inorganic complexing agent.
3. An organic stable chlorine dioxide disinfectant as set forth in claim 1, wherein: the feed comprises the following raw materials in parts by weight: 75 parts of desalted water, 0.15 part of sodium chlorate and/or sodium chlorite, 0.12 part of activating agent, 2.2 parts of organic complexing agent and 0.0015 part of inorganic complexing agent.
4. An organic stable chlorine dioxide disinfectant as set forth in claim 1, wherein: the purity of the sodium chlorate is 96-98%, and the purity of the sodium chlorite is 78-80%; preferably, the purity of the sodium chlorate is 97% and the purity of the sodium chlorite is 79%.
5. An organic stable chlorine dioxide disinfectant as set forth in claim 1, wherein: the activating agent is at least one of hydrochloric acid, citric acid, glucose or cellulose.
6. An organic stable chlorine dioxide disinfectant as set forth in claim 1, wherein: the organic complexing agent is one of aminoethanol, ethylene diamine tetraacetic acid or polyvinylpyrrolidone; the inorganic complexing agent is one of sodium carbonate, sodium percarbonate or sodium perborate.
7. A method of producing an organic stable chlorine dioxide disinfectant as claimed in any one of claims 1 to 6, comprising the steps of:
(1) mixing and stirring desalted water, sodium chlorate and/or sodium chlorite and an activating agent uniformly under the heating condition to obtain a mixture;
(2) and adding an organic complexing agent into the mixture, uniformly mixing and stirring, and dropwise adding an inorganic complexing agent to adjust the pH value to be weakly acidic, thereby obtaining the organic stable chlorine dioxide disinfectant.
8. A method for preparing an organic stable chlorine dioxide disinfectant as claimed in claim 7, wherein in step (1), the heating temperature is 30-40 ℃, preferably 30 ℃.
9. The method for preparing an organic stable chlorine dioxide disinfectant as claimed in claim 7, wherein in the step (2), inorganic complexing agent is added dropwise to adjust pH to 6-7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662005A (en) * | 2021-08-18 | 2021-11-19 | 首都医科大学附属北京朝阳医院 | Chlorine-containing disinfectant and preparation method and application thereof |
| CN113800472A (en) * | 2021-08-13 | 2021-12-17 | 湖北金汉江精制棉有限公司 | Preparation method of stable chlorine dioxide bleaching solution |
| CN114176094A (en) * | 2021-10-09 | 2022-03-15 | 江苏祥豪实业股份有限公司 | Chlorine dioxide disinfectant and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113800472A (en) * | 2021-08-13 | 2021-12-17 | 湖北金汉江精制棉有限公司 | Preparation method of stable chlorine dioxide bleaching solution |
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