KIT FOR CHLORINE DIOXIDE FUMIGATION

Abstract

The present invention relates to a kit for chlorine dioxide fumigation, a method for manufacturing same, and a method for using same. When the kit of the present invention is used, a high concentration of chlorine dioxide can be generated within a short time period without combustion and explosion. In addition, the kit is conveniently produced and packed as compared to existing disinfection kits, is easy to use, and produces a large amount of chlorine dioxide gas which is safer and has high purity, and thus can be effectively used in space disinfection.

Claims

1. A kit for chlorine dioxide fumigation, the kit comprising a sugar, water, and sodium chlorite.

2. The kit of claim 1, wherein the sugar is a sugar powder or a liquid sugar.

3. The kit of claim 1, wherein the sugar and water are mixed to form a sugar diluted solution.

4. The kit of claim 3, wherein the sugar diluted solution is prepared by diluting a sugar powder or a liquid sugar in water at a weight ratio of 1:0.1-10.

5. The kit of claim 1, wherein the sugar is at least one selected from the group consisting of glucose, sugar, lactose, maltose, fructose, an oligosaccharide, dextrin, and honey.

6. The kit of claim 3, wherein sodium chlorite and the sugar diluted solution are contained at a weight ratio of 1:0.1 to 1:10.

7. The kit of claim 1, further comprising a heating inducer.

8. The kit of claim 7, wherein the kit comprises: an A1 unit containing a sugar and water; an A2 unit containing sodium chlorite; and a B unit containing a heating inducer, the A1 unit, the A2 unit, and the B unit being separately packaged.

9. The kit of claim 1, further comprising a heating container.

10. The kit of claim 1, further comprising an acid.

11. The kit of claim 10, wherein the acid is at least one organic acid selected from the group consisting of citric acid, lactic acid, acetic acid, formic acid, tartaric acid, oxalic acid, ascorbic acid, uric acid, butyric acid, stearic acid, and propionic acid.

12. The kit of claim 10, wherein the acid is at least one inorganic acid selected from the group consisting of hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, boric acid, and hydrofluoric acid.

13. The kit of claim 10, wherein the weight ratio between water and the sugar is 10:0.1-10.

14. The kit of claim 10, wherein the acid is contained in water at 0.01 to 10 M.

15. The kit of claim 10, wherein the weight ratio between a mixture solution of the sugar, the acid, and water excluding sodium chlorite and sodium chlorite is 1:0.1 to 1:10.

16. The kit of claim 10, wherein the kit comprises 20 to 200 parts by weight of the sugar relative to 100 parts by weight of sodium chlorite.

17. A method for using the kit for chlorine dioxide fumigation of claim 7, the method comprising: i) mixing the sugar diluted solution and sodium chlorite; and ii) adding a heating inducer and water to the mixture to conduct an exothermic reaction and generate chloride dioxide gas.

18. (canceled)

19. A method for using the kit for chlorine dioxide fumigation of claim 10, the method comprising: i) mixing the sugar, the acid, and water, followed by dissolution; and ii) adding sodium chlorite to the mixture, followed by mixing, thereby generating chloride dioxide gas.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0086] FIG. 1 shows the results of measuring concentration of chloride dioxide gas generated by a fumigating method according to one example of the present disclosure. At concentrations exceeding 200 ppm, the maximum value was not confirmed due to exceeding the limit of detection.

[0087] FIG. 2 sequentially shows a method for using a kit according to one example of the present disclosure (1. add a sodium chlorite powder to a glucose solution; 2. add an thermogenic agent; 3. add purified water; 4. chlorine dioxide gas being generated).

[0088] FIG. 3 sequentially shows a method for using a kit according to another example of the present disclosure (1. add a sodium chlorite powder to a solution of glucose and citric acid; 2. chlorine dioxide gas being generated).

MODE FOR CARRYING OUT THE INVENTION

[0089] Hereinafter, the present disclosure will be described in more detail with reference to exemplary embodiments. These exemplary embodiments are provided only for the purpose of illustrating the present disclosure in more detail, and therefore, according to the purpose of the present disclosure, it would be apparent to a person skilled in the art that these examples are not construed to limit the scope of the present disclosure.

EXAMPLES

Example 1

Manufacturing of Inventive Kit for Chlorine Dioxide Fumigation 1

[0090] 1) Preparation of Sugar Diluted Solutions

[0091] Glucose, sugar, maltose, fructose, and an oligosaccharide in a powder form were dissolved in water such that the weight ratio between water and each sugar was 3:1, and starch syrup and honey in a liquid phase were mixed with water such that the weight ratio between water and each sugar was 1:1. In the following test, 150 ml of each of the prepared sugar diluted solutions was used.

[0092] 2) Preparation of Mixtures of Sodium Chlorite and Sugar Diluted Solution

[0093] To beakers containing the sugar diluted solutions was added 100 g of a sodium chlorite powder, and then well mixed, and used immediately after mixing.

[0094] 3) Addition of Heating Inducer

[0095] A cotton wool pack containing 13 g of a heating inducer was placed on each of the mixtures of sodium chlorite and the sugar diluted solution, and 60 ml of water was poured thereon, and then the mixtures were heated.

[0096] 4) Confirmation of Generating Chlorine Dioxide Gas

[0097] The heated mixtures reacted to generate gas, and as a result of measurement using a chlorine dioxide measurement instrument (6000-CLO2, measurement limit: 200 ppm), the diluted solution of every type of sugar provided in the test reacted with sodium chlorite to generate chlorine dioxide gas.

[0098] Specifically, chlorine dioxide gas was generated at 5 to 20 minutes after the addition of the thermogenic agent in cases of glucose, maltose, and starch syrup, and the gas was generated at 40 minutes after the addition of the thermogenic agent in cases of sugar, oligosaccharide, fructose, and honey. As a result of measuring chlorine dioxide gas, the gas was generated for each case up to the measurement limit, 200 ppm, of the measurement instrument.

[0099] On the basis of the results, the following test was conducted using a solution in which water and glucose were mixed at a weight ratio of 75:25.

Test Example 1

Measurement of Chlorine Dioxide Concentration

[0100] A measurement instrument (Wandi Gas tiger 6000-CLO2) was installed in a closed space of about 120 m.sup.3 (4.2 m×5.7 m×5 m). In a metal container (a circular metal can with a diameter of 13 cm and a height of 15 cm) disposed on the ground in a space 5 m away from the measuring instrument, 150 ml of a glucose diluted solution and 100 g of a sodium chlorite powder were added and mixed well, and then a cotton wool pack containing 13 g of a thermogenic agent was placed on the mixture, and 60 ml of water was poured over a thermogenic agent. Then, the measurement instrument was operated from the time when the thermogenic agent was added, to measure the concentration of chlorine dioxide gas every one minute.

[0101] As can be confirmed from FIG. 1, chlorine dioxide gas started to be measured 5 minutes after the initiation of the measurement, and reached a concentration of 200 ppm or more 22 minutes after the initiation of the measurement. Thereafter, the concentration was kept at 200 ppm or more for 24 minutes and then slowly decreased, and the concentration was kept at 50 ppm or more for up to 1 hour and 20 minutes and at 30 ppm even after 3 hours in the space of 120 m.sup.3.

Example 2

Manufacturing of Inventive Kit for Chlorine Dioxide Fumigation 2

[0102] A kit for fumigation capable of chlorine dioxide fumigation even without a thermogenic agent for chlorine dioxide was manufactured as follows. In addition, the kit was manufactured to have the composition shown in Table 1 to investigate the degree of improvement compared with the kit for chlorine dioxide fumigation manufactured in Example 1.

TABLE-US-00001 TABLE 1 Compositions of kit of Example 1 and kit of Example 2 Purified water Sodium Thermogenic Citric contained in Total amount of chlorite Glucose agent acid sugar solution purified water Composition (g) (g) (g) (g) (g) (g) Example 1 100 40 13 — 110 170 (110 g contained in sugar solution + 60 g added to thermogenic agent) Example 2 100 60 — 5 170 170

[0103] The packaging configurations of the kit of Example 1 and the kit of Example 2 are shown in Table 2.

TABLE-US-00002 TABLE 2 Packaging configurations (manufacturing processes) of kit of Example 1 and kit of Example 2 Kit of Example 1: 1. Package sodium chlorite powder 2. Package sugar solution (glucose + purified water) 3. Package thermogenic agent 4. Package purified water for generation of heat 5. Package all contents Kit of Example 2: 1. Package sodium chlorite powder 2. Package mixture solution of glucose and citric acid (glucose + citric acid + purified water) 3. Package all contents

[0104] As shown in Tables 1 and 2, sodium chlorite, the glucose solution, the thermogenic agent, and purified water for generation of heat need to be separately packaged in the kit of Example 1. However, the inventive kit of Example 2 is simple to package since glucose, citric acid, and purified water can be mixed into one and thus merely sodium chlorite and the solution of glucose+citric acid+purified water need to be separately packaged.

Test Example 2

Using of Kits for Chlorine Dioxide Fumigation of Examples 1 and 2

[0105] 2-1. Method of Using Kit of Example 1

[0106] In the kit of Example 1, the separately packaged sodium chlorite powder was placed in a container containing the glucose solution, followed by homogeneous mixing, and then the thermogenic agent was added thereto. Thereafter, purified water was poured over the thermogenic agent, followed by an exothermic reaction. As a result, while the mixture was boiled, heat was generated and chlorine dioxide gas was generated. The method of using the kit of Example 1 is shown in Table 3 and FIG. 2.

[0107] 2-2. Method of Using Kit of Example 2

[0108] In the inventive kit of Example 2, the mixture solution containing glucose and citric acid was placed in a reaction container, and the sodium chlorite powder was added thereto. As a result, while the mixture was boiled, a high heat of 100° C. or higher was generated, and chlorine dioxide gas was generated very quickly and simultaneously diffuses quickly throughout the space where the reaction occurred. The method of using the kit of Example 2 is shown in Table 3 and FIG. 3.

TABLE-US-00003 TABLE 3 Methods of using kit of Example 1 and kit of Example 2 Kit of Example 1: 1. Place 100 g of sodium chlorite powder in container containing 150 ml of glucose solution (40 g of glucose and 110 g of purified water) 2. Place thermogenic agent 3. Pour 60 g of purified water to thermogenic agent Kit of Example 2: 1. Place 100 g of sodium chlorite in container containing mixture solution of glucose and citric acid (60 g of glucose, 5 g of citric acid, and 170 g of purified water)

[0109] As shown in Table 3 and FIGS. 2 and 3, the kit of Example 1 containing the thermogenic agent needed to pass through four steps: i) placing the glucose solution in the container, ii) adding sodium chlorite, iii) adding the thermogenic agent, and iv) adding purified water for an exothermic reaction.

[0110] However, the kit of Example 2 can generate chlorine dioxide gas through only two steps of: i) placing the mixture solution of glucose and citric acid in the container; and ii) adding sodium chlorite, and thus is simpler to use than the kit of Example 1.

[0111] As described above, the kit of Example 2 is simple for product production and packaging and is also simple to use, and furthermore, the kit of Example 2 is safer since there is no need to use a thermogenic agent and thus impurities that may be generated from the thermogenic agent is unlikely to be contained in the fumigated chlorine dioxide gas.

[0112] In the kit of Example 2, a high concentration of chloride dioxide gas is generated while chlorine dioxide gas is generated very actively, and a high heat of 100° C. or higher is generated while the reaction occurred, and thus the chlorine dioxide gas could diffuse very quickly and easily throughout the space where the reaction occurred, thereby disinfecting a wide space quickly.

[0113] Accordingly, the kit for fumigation of Example 2 can be used very advantageously for space disinfection.

[0114] Although the present disclosure has been described in detail with reference to the specific features, it will be apparent to those skilled in the art that this description is only for a preferred embodiment and does not limit the scope of the present disclosure.