KR20220065215A - Chlorine dioxide generating kit - Google Patents

Abstract

The present invention relates to a chlorine dioxide generation kit which generates dioxide gas, which is a disinfectant. The chlorine dioxide generation kit is characterized in that a porous carrier which has undergone a drying process after an aqueous solution of sodium chlorite is absorbed and gelling agent powder which forms a gel state when water is absorbed are stored in a container and provided in a state sealed from the outside, in that organic acid powder, which generates chlorine dioxide gas when reacting with the sodium chlorite, is provided in a separate package that is sealed from the outside together with and the container in which the porous carrier and the gelling agent powder are stored, in that in use, the sealed container is opened, the organic acid powder is unpacked and put into the container, and then a certain amount of water is injected into the container so as to induce a reaction between sodium chlorite and the organic acid powder in the porous carrier in the gel-state structure formed in the container to generate and release chlorine dioxide gas. Thereby, it is possible to reduce the inconvenience of distribution and use, improve the performance so that the reaction time of chlorine dioxide can be maintained at a constant speed for a long time and react, and also contribute to the pursuit of the convenience of use for consumers.

Description

Chlorine Dioxide Generation Kit {CHLORINE DIOXIDE GENERATING KIT}

The present invention relates to a chlorine dioxide generating kit that generates chlorine dioxide gas, which is a disinfectant, and more particularly, when stored in a container, it is mixed and stored in the form of separate powders, and when used, only water is added to dissolve the contents It relates to a portable chlorine dioxide generation kit that continuously generates chlorine dioxide gas using its properties and gelling properties.

Chlorine dioxide (ClO ₂ ) is a yellowish green color and a gas with a unique odor, which changes to a yellowish-red liquid when cooled. Although the word chlorine is included in its name, it is a chemically different substance from chlorine. Chlorine dioxide gas has a property of being decomposed by ultraviolet rays, but it is not hydrolyzed in water.

Chlorine dioxide oxidizes or destroys the structure of ammonia and phenol, the cause of odors, and removes them. When sterilizing with chlorine-based compounds, chlorine dioxide generates carcinogens whereas chlorine dioxide is not generated at all, but it is explosive due to heat. It was initially used as a bleaching agent due to its strong volatility and oxidizing properties, but it was not widely used due to a problem in gaseous stability. It is used for various purposes. In developed countries such as Europe and the United States, the use of water for disinfection of drinking water, washing water for fruits and vegetables in the food industry, water treatment agent for processing of fish and shellfish, poultry, etc., and disinfection water for food manufacturing and processing facilities and instruments, etc. is increasing.

In order to generate chlorine dioxide having such a useful function in real life space, it is mainly used for the purpose of sterilizing or deodorizing indoor air by reacting liquid chlorite with acid to generate chlorine dioxide. However, there is a limit to the control of the reaction rate and the release rate during the reaction of chlorite and acidic substances when used in such an actual living environment. That is, generation of an excessive amount of chlorine dioxide gas has a side effect on the human body, and there are cases where oxidation and discoloration reactions are accompanied by contact materials, etc. In addition, when it is released too slowly, it may be difficult to expect the desired effect.

Recently, various technologies have been developed and introduced with respect to the chlorine dioxide generation kit. Patent Publication No. 10-2019-0064672, Patent Registration No. 10-1889122, etc. are a technology related to a generator in the form of storing the raw material separately in the form of a solution and powder, and then mixing it immediately before use. That is, the raw material 1 (liquid phase) and raw material 2 (gelling activator) are separated and stored and mixed immediately before use, or each raw material is separated into powder form and sealed and stored in the container immediately before use. After mixing, water is added to induce chlorine dioxide reaction and swelling by the internal gelling agent, thereby generating chlorine dioxide gas gradually.

However, there are many difficulties in storage and distribution of each reactant that induces generation of chlorine dioxide in actual use. For example, if sodium chlorite, active organic acid (eg citric acid), and gelling polymer are simply mixed and stored in powder form, then, due to direct contact between sodium chlorite and organic acid, carbon dioxide is produced in the powder mixture during distribution and storage. Chlorine gas is gradually generated. For this reason, it is usually used or distributed in a way that soda chlorite and the activator are separated from each other and sealed and stored. However, in this case, there are inconveniences and inconveniences in use from the user's point of view.

The object of the present invention is, as described above, in the case of the existing technologies and products, there are inconveniences and inconveniences due to the distribution of liquid form, and each powder component is separately stored in a sealed container and used To improve the inconvenience of opening and mixing the container, to provide a chlorine dioxide generation kit having the characteristics of simply adding only water to generate gelled chlorine dioxide, and allowing it to be slowly released over a long period of time.

The present invention prepares and uses a gelling agent and a sustained-release porous carrier to control the release rate of the chlorine dioxide generating kit. In particular, for the convenience of distribution and use, the properties of the active agent during storage are controlled by adsorbing and drying sodium chlorite and sodium chlorite among the composition of the active agent, which are necessary when generating chlorine dioxide, and after contact with water, the weakly acidic active agent By controlling the reaction time with , the sustained-release properties can be exhibited in a sustainable form for a long time to control the rate of chlorine dioxide generation.

That is, most of the chlorine dioxide for on-site generation is prepared in the form of reacting sodium chlorite with a weakly acidic activator, and the present invention absorbs and adsorbs sodium zincate, which is the main material among the mechanisms of this chemical reaction, onto the porous carrier particles. By controlling the reaction rate with a weakly acidic organic acid, which is a reactant, a constant reaction rate is maintained for a long period of time and chlorine dioxide is continuously generated.

Specifically, in the chlorine dioxide generation kit to achieve the above object, the present invention comprises a porous carrier that has undergone a drying process after the sodium chlorite aqueous solution is absorbed, and a gel state when absorbing water. The gelling agent powder is stored in a container and provided in a sealed state from the outside, and the organic acid powder that generates chlorine dioxide gas when it reacts with the sodium chlorite is a separate package that is sealed from the outside, and the porous carrier and the gelling agent powder are It is provided with a stored container, and when used, the sealed container is opened, the organic acid powder is unpacked and put into the container, and then a certain amount of water is injected into the container in the gel-like tissue formed in the container. It provides a chlorine dioxide generation kit, characterized in that it is provided to generate and release chlorine dioxide gas by inducing a reaction between sodium chlorite in the porous carrier and the organic acid powder.

Here, the porous carrier may be made of any one of ocher, zeolite, silica, molecular sieve, and bentonite.

In addition, the organic acid powder may be provided in a mixed form with a buffer powder for controlling the reaction rate with the sodium chlorite in a predetermined ratio.

In this case, the buffer is silica, and the organic acid powder may be provided in the form of a powder obtained by pulverizing the silica particles after being absorbed and dried on the silica in the form of an aqueous solution.

On the other hand, the chlorine dioxide generation kit may further include a lid that is covered with the opened container and is provided so that the degree of opening can be adjusted.

As described above, according to the chlorine dioxide generating kit according to the present invention, there is an advantage of very convenient distribution and use, unlike the existing chlorine dioxide generating kit.

For the safety of preservation during distribution, each reactant in powder form is separated and individually packaged and mixed immediately before use, or some in solution, some in powder form, and some in solution, and stored after being separated and stored immediately before use. Mixed use was common, but in this case, there was a limit in controlling the rate of chemical reaction according to chlorine dioxide reaction after the user activated the product.

Therefore, the present invention improves the inconvenience of distribution and use, improves the performance so that the reaction time of chlorine dioxide can be maintained at a constant rate for a long period of time, and can also contribute to the pursuit of convenience of use for consumers.

1 is a perspective view of a chlorine dioxide generation kit according to an embodiment of the present invention;
Figure 2 is a perspective view of a state in which the lid of the chlorine dioxide generation kit of Figure 1 is opened;
3 and 4 are schematic cross-sectional views for explaining a method of using the chlorine dioxide generation kit of FIG.

The chlorine dioxide generation kit according to an embodiment of the present invention is a carrier in which sodium chlorite is absorbed into porous particles inside the sealed container 1 as shown in FIGS. 1 and 2, and an adsorption sustained-release gelling agent. It contains, and contains an acidic organic acid powder provided therewith. This acidic organic acid powder is put into the container (1), mixed with the sodium chlorite carrier and the adsorption sustained-release gelling agent, and water is added to the container (1) of the mixed powder mixture to activate it. By the activation of the gel formed inside the container 1 after water is added, chlorine dioxide gas is gradually and continuously generated thereafter. The final release rate can be controlled by adjusting the opening degree of the valve 3 by turning a cap (lid) 2 equipped with an open valve 3 for speed control.

Soda chlorite is a strong oxidizing agent used as a textile bleaching agent, as a bleaching agent for paper and pulp, and as a water treatment agent. Such sodium chlorite reacts with an acid group to generate chlorine dioxide. Among them, it also generates chlorine dioxide gas by reacting with citric acid, which is a relatively stable material that can be easily accessed in the living environment.

The chemical reaction formula of citric acid and sodium chlorite is as follows.

15NaClO ₂ + 4C ₆ H ₈ O ₇ = 12ClO ₂ + 4C ₆ H ₅ Na ₃ O ₇ + 3NaCl + 6H ₂ O

As shown in the above reaction, the reaction between sodium chlorite (molecular weight: 90.46) and citric acid (molecular weight: 192.12) reacts at a ratio of 15 sodium chlorite molecules and 4 citric acid molecules, followed by 12 molecules of chlorine dioxide, 3 molecules of salt, and water. Produces 6 molecules.

The porous carrier to be applied in the present invention basically means an inorganic material in the form of structurally having many pores therein. Using such a porous carrier, sodium chlorite, a basic reactant of chlorine dioxide, is adsorbed and supported inside, and reacts slowly at the time of activation in a sustained-release type to control the reaction rate to generate chlorine dioxide. As such an inorganic carrier, an inorganic material such as silica, microsieve, zeolite, and loess may be used. Among these inorganic carriers, materials capable of reacting with an acidic solution cannot be used. When it reacts with an acidic substance, it reacts with the organic acid used as an activator, so it is difficult to use because it may cause neutralization and the generation of bubbles and gases during the activation process.

Silica is a compound composed of silicon and oxygen and has a structure rich in porosity. Due to the large amount of oxygen in the molecular structure, it has a characteristic of having hydrophilic adsorption properties. In the present invention, citric acid and lactic acid, which are types of organic acids, are adsorbed on silica, dried, and then slowly released in aqueous solution conditions by using these characteristics. The organic acid inside the treated silica has a characteristic of slowly releasing the organic acid inside the solution. That is, by controlling the reaction rate of sodium chlorite and organic acid presented in the above reaction formula, chlorine dioxide is sequentially generated and it is possible to provide a sustained-release characteristic in which it is gradually released. Schemtech's SS SIL-530 has a particle size of about 3.5 microns and a surface area of about 230±40 (m ² /g). In the case of such porous silica, it cannot be absorbed above a certain amount of oil absorption. Therefore, it is necessary to adsorb the organic acid solution within the oil absorption characteristics of silica to exhibit a sufficient function. If an organic acid solution with more than the absorption capacity is used inside the porous silica, organic acid molecules that are not absorbed during drying may be precipitated and dried outside the silica particles. In this case, the initial reaction of the citric acid (organic acid) particles precipitated on the outside of the silica particles may be excessively fast at the time of initiation of activation.

Zeolite (zeolite) is a generic term for minerals in which alkali metals and alkaline earth metals are combined with anions generated by the combination of aluminum oxide and silicic acid oxide. That is, it means a crystalline aluminum silicate mineral. Zeolite has a property of selectively and strongly adsorbing unsaturated hydrocarbons or polar substances by the action of cations in its crystal structure. In addition, since zeolite has a pore diameter of a certain size, it selectively passes through and adsorbs molecules smaller than this. And, since the zeolite contains exchangeable cations in its crystal structure, it is easily exchanged with other cations freely. Using this property, it is possible to remove harmful substances, concentrate and recover useful components. Recently, some of the cations constituting zeolite are substituted with anions because they have antibacterial properties, so they are sometimes used as quality or freshness maintenance agents in food. Among these various zeolites, a molecular sieve (Molecular sieve), which is widely used for experiments, may be used. Molecular sieves are made of porous materials, commonly aluminosilicate compounds called zeolites, and are used to separate materials at the molecular level. In use, it is common to use a spherical shape for the material of such zeolites. In this case, the size of the sphere is mainly 1~5mm. The most effective chlorine dioxide emission performance is achieved when using spherical sizes in this range.

In the case of loess, it is a material widely used in general living environments. Products processed in the form of small balls using such loess are sold. Loess is also structurally a material with many pores inside. The loess can be used in powder form, but it is advantageous to use a spherical form. In the case of powder form, it is difficult to control the sustained release of the absorbed and adsorbed sodium chlorite because the surface area is too wide. In the case of a spherical shape, there are products with various diameters, but loess balls with a size of 1 to 3 mm are advantageous. In the case of an excessively large diameter, the reaction rate after activation may be excessively slow. If it is smaller than 1 mm, the reaction rate after activation may be too fast.

When sodium chlorite is absorbed into the porous support as described above, the absorption and adsorption amount may vary depending on the specific surface area of the porous support. Basically, in the case of such a porous support, a relatively large amount of suitable solution can be accommodated in the porous structure inside the support. At this time, soda chlorite is dissolved in water as much as 20-25% as possible, and then absorbed in such a porous carrier. In the case of silica, it can absorb a large amount of sodium chlorite solution because it has an oil absorption characteristic of 200% to 400% of its own mass. However, in the case of materials such as zeolite and loess balls, a smaller amount of chlorous acid solution can be absorbed than silica. Therefore, in the case of zeolite and loess balls, it is preferable to repeat the reabsorption/adsorption process after drying while dividing and mixing the chlorous acid solution in small portions during the adsorption process. Finally, in the case of zeolite and loess balls, it is preferable to contain soda chlorite within 5 to 20% of the solid content relative to their own weight. In the case of silica, it is preferable to have a solid content of 10 to 30% relative to its own weight. If it is treated to contain an excessively large amount of sodium chlorite, the sodium chlorite in excess of the absorption capacity is precipitated outside the porous carrier and dried. However, when an excessively small amount of sodium chlorite is contained, it is not preferable because the reaction rate or amount of reaction with the organic acid may be too slow or small due to the deterioration of the transferability of the sodium chlorite inside the support after water is added. .

As the acidic organic acid powder to be applied in the present invention (ie, the activator organic acid), various organic acids in the form of various powders may be used. Typically, organic acids such as citric acid, acetic acid, ascorbic acid, and lactic acid may be used. Such an organic acid is used by mixing with other powders capable of buffering and dissolving, rather than using the organic acid itself, so that when activated by adding water, it is gradually dissolved and the rate can be controlled. In this case, various kinds of starch, various sugars in powder form, trehalose, silica, etc. can be used as a buffer that can be used together. This kind of buffer can be used by mixing with an organic acid to control the rate of dissolution in water, thereby controlling the activation time and the rate of generation. In particular, in the case of trehalose, in addition to these functions, it contributes to the moisturizing effect and shape stabilization of the gel composition after final dissolution.

Trehalose is a natural carbohydrate present in the cells of animals and plants. Sunflower seeds, seaweeds, shiitake mushrooms, matsutake mushrooms, and wood ear mushrooms are especially abundant in mushrooms. Originally from nature, it is now known as a food additive and cosmetic additive, and is known to be non-hazardous and non-toxic. Trehalose is a white crystalline, non-reducing natural disaccharide obtained from yeast or certain types of fungi. Compared to other sugars, it has excellent acid resistance and is strong against boiling water, heat, and acids. In addition, it helps to keep the skin moist by preventing the intracellular substances from drying out, promotes cell production and helps prevent damage by forming a membrane on the cell surface. The trehalose-treated surface exhibits very stable and smooth surface properties.

The adsorption sustained-release gelling agent (ie, gelation-induced hygroscopic resin) to be applied in the present invention absorbs water when sodium chlorite and organic acid are dissolved in water to form a gel phase, and plays a role of slowly releasing the generated chlorine dioxide do. There are various types and types of absorbent polymers, but the most commonly used case is a polymer-based super absorbent polymer (SAP). Among them, it is preferable to use sodium polyacrylate resin, which is generally applied to absorbent fibers such as sanitary napkins, diapers, and sanitary mats. Representative examples include TAISAP from Formosa (Taiwan) and products from LG Chem.

In the case of such a polymer gelation-inducing water absorbent resin, it is preferable to use it in the range of 2% or more and within 10% of the amount to be finally used. When the superabsorbent polymer gel-induced absorbent resin is used within 2% of the total amount used, the initial reaction time between the carrier and the organic acid is prolonged when water is added, so the initial release of chlorine dioxide may be excessive. . In addition, the organic acid used together may be dissolved in water too much, and the gelation performance may be deteriorated along with a phenomenon of acidity decrease. Conversely, if it exceeds 10% of the amount used, gelation proceeds with excessive water absorption, so the time for the support inside the container and the processed organic acid to dissolve in water and react sufficiently is short, so the release performance after activation is reduced. can be lowered

-Experimental example-

[Preparation of porous chlorine dioxide adsorption carrier]

Carrier 1: ocher ball carrier

Prepare 100 g of 25% sodium chlorite solution and slowly mix with 900 g of red clay balls with a diameter of about 1 mm. At this time, mix while adding slowly so that it can be completely absorbed into the loess balls. Dry the mixed loess balls at room temperature where light is blocked for about 3 to 5 days.

Carrier 2: Zeolite Carrier

Proceed with the same process as the above loess ball carrier.

Carrier 3: Silica Carrier

Proceed with the same process as the above loess ball carrier. However, in this case, use 400 g of 25% sodium chlorite solution.

[Production/preparation of organic acid activator]

Activator 1.

Prepare about 20% solution by dissolving citric acid hydrate (CITRIC ACID MONOHYDRATE) in water. 70 g of the dissolved citric acid solution is slowly mixed with 30 g of silica SS-SIL 530 (manufacturer: Schemtech). At this time, the citric acid solution is divided into 5 portions and mixed while slowly adding. If the content of the citric acid solution is too large, the silica cannot completely absorb the solution, and after drying, citric acid particles may be deposited on the outside of the silica. In addition, if the citric acid solution is not sufficient, the amount of citric acid released inside the final product is too small due to the insufficient content of absorbed citric acid, so the expected effect may not be seen.

The silica mixed with the citric acid solution is dried in an oven at 60° C. or less until completely dried for 24 hours. In this case, if drying is performed at an excessively high temperature, the citric acid solution inside may be eluted to the outside of the silica during the drying process, and may be precipitated outside the silica particles after final drying. In this case, the storage stability of the final product may cause problems. Check that the total moisture content is within 5% by measuring the moisture of the particles. If sufficient drying has not progressed, dry it sufficiently through re-drying and cool it in a sealed state. In this way, the silica particles to which the organic acid has been absorbed/adsorbed are pulverized and stored using a pulverizer.

Activator 2.

Mix citric acid powder and trehalose powder in a ratio of 2:1 to 2:3.

Activator 3.

Mix vitamin C powder (ascorbic acid) and starch in a 2:1 ratio.

Activator 4.

Lactic acid is absorbed into silica powder in a 1:1 ratio before use.

[Filling of chlorine dioxide generating container]

In a sealable container with a capacity of about 150 ml, 10 g of the previously prepared yellow earth ball soda chlorite carrier and 2 g of soda chlorite are put. Then, 7 g of polymer absorbent (SAP) is added thereto and mixed well. The mixture in the mixed container is closed and stored. It is desirable to store it so that moisture does not penetrate as much as possible.

[use]

When using the chlorine dioxide generation kit prepared as above, the container (1 in FIG. 2) storing the sodium chlorite carrier 4 and the polymer absorbent 5 is opened as shown in FIG. 3 and the prepared organic acid activator powder Insert (6). Pour water (7) as shown in FIG. 4 (about 100 g) up to the mark on the container. After that, wait about 1-2 minutes. Observe the change inside the container (1). Observe the process in which the water 7 injected into the container 1 is gelled, and confirm that the gelation has completely progressed.

After gelation, chlorine dioxide is continuously released from the inside of the vessel 1 . The speed control cap (2) is mounted and used as shown in FIG. The generation rate and amount of chlorine dioxide can also be adjusted through the opening of the upper speed control valve (3).

The presence or absence of chlorine dioxide emission can be checked using a chlorine dioxide meter (GAS TIGER 2000 model) or measured using a chlorine dioxide measuring paper. In case of using chlorine dioxide measuring paper, it can be confirmed by placing the measuring paper on the top of the cap (2) for controlling the release rate of the container and observing the color change of the paper after a certain period of time has elapsed. The discoloration time varies depending on the degree of opening of the speed control valve 3 of the container 1 and the room temperature.

Experimental results obtained by selectively combining carriers 1 to 3 and activators 1 to 4 as described above in [Table 1] below are shown in [Table 2] below.

Experimental Example 1 Experimental Example 2 Experimental Example 3 Experiment 4 Experiment 5 Experiment 6 Experiment 7 Experiment 8 Experiment 9 Experiment 10 carrier 1 ○ ○ ○ ○ carrier 2 ○ ○ ○ carrier 3 ○ ○ ○ activator 1 ○ ○ activator 2 ○ ○ ○ activator 3 ○ ○ ○ activator 4 ○ ○

(using 10 g of processed carrier, 3 g of active agent)

Experimental Example 1 Experimental Example 2 Experimental Example 3 Experiment 4 Experiment 5 Experiment 6 Experiment 7 Experiment 8 Experiment 9 Experiment 10 Early
release rate ◎ ◎ ◎ ○ ◎ ◎ ○ ◎ ◎ △ long time
release rate ◎ ◎ △ △ ◎ ○ △ ○ △ △ constant speed
emission performance ◎ ◎ ○ △ ◎ ○ △ ○ ○ △ use
convenience ○ ◎ ◎ △ ◎ ◎ △ ○ ◎ ◎

(◎: very good, ○: excellent, △: average)

As shown in [Table 2], the initial release rate, long-term persistence, release performance at a constant rate, and convenience of use were verified according to the type and material of the carrier.

The initial release rate refers to the release rate of chlorine dioxide within the first 3 days after mixing the type of carrier in the container and the processed organic acid activator and adding water to activate it. It was effective when a mixed powder form of citric acid mixed with silica and trehalose together with the treated carrier and an organic active agent mixed with vitamin C (ascorbic acid) and starch were used. If the reaction rate of sodium chlorite absorbed and adsorbed in the carrier is too slow or the activation is delayed, it is difficult to use.

The constant rate release performance is a very important performance characteristic in the chlorine dioxide generation kit as in the present invention. That is, it can be used for various purposes only when it has a characteristic of maintaining a constant concentration and continuously emitting chlorine dioxide for a long period of time (up to 2 months in this case). That is, when the release rate is very high during initial activation, and then the release rate drops sharply, it is difficult to use it for a long-term continuous use in a daily life environment. If the initial release rate is very high during initial activation and then the release rate drops rapidly, this case can be used for instantaneous decontamination of a certain space.

However, since the present invention intends to propose a kit having a long-term continuous release characteristic in daily life, the physical property having such a release characteristic is to be excluded. Of course, after adding and activating water to the initial support and the processed organic acid, the amount of chlorine dioxide that is initially released is large, and it tends to decrease continuously over time. However, if the duration of this reduction is too short, or if the release due to activation stops within a short period of time after initial activation, there is a problem in the performance of the product considering the use. The emission of chlorine dioxide was measured using a chlorine dioxide meter (TIGER 2000 model manufactured by GAS). In order to exhibit excellent performance, it must have the characteristic of emitting a fixed amount for a long time as possible.

Convenience of use refers to the result of observing the flow of particles and ease of mixing at the time of initial mixing by adding the processed activator powder to the carrier in the container during use. In this case, in terms of the flowability of the processed organic acid particles and the miscibility with the carrier, the active agents 2 and 3 were the most convenient.

On the other hand, since the chlorine dioxide generation kit described above is only an embodiment for helping the understanding of the present invention, the scope of the present invention defined by the claims to be described below and the equivalents thereof is as described above. not limited

1: Chlorine Dioxide Generation Kit
2: Lid
3: valve
4: Porous carrier
5: Polymer absorbent
6: Organic Acid Activator Powder
7: water

Claims (5)

In the chlorine dioxide generation kit,
The porous carrier, which has undergone a drying process after the sodium chlorite aqueous solution is absorbed, and the gelling agent powder that forms a gel state when water is absorbed are stored in a container and provided in a sealed state from the outside,
The organic acid powder that generates chlorine dioxide gas when it reacts with the sodium chlorite is a separate package that is sealed from the outside, and is provided with a porous carrier and a container in which the gelling agent powder is stored,
When in use, the sealed container is opened, the organic acid powder is unpacked and put into the container, and then a certain amount of water is injected into the container. And chlorine dioxide generation kit, characterized in that provided to generate and release chlorine dioxide gas by inducing a reaction of the organic acid powder. According to claim 1,
The porous carrier is a chlorine dioxide generation kit, characterized in that made of any one material of loess, zeolite, silica, molecular sieve, bentonite. The method of claim 1,
The organic acid powder is a chlorine dioxide generation kit, characterized in that it is provided in a mixed form with a buffer powder for controlling the reaction rate with the sodium chlorite and a predetermined ratio. 4. The method of claim 3,
The buffer is silica,
The organic acid powder is absorbed and dried on the silica in the form of an aqueous solution, and then the chlorine dioxide generation kit, characterized in that it is provided in the form of a powder obtained by pulverizing the silica particles. According to claim 1,
The chlorine dioxide generation kit, which is covered with the opened container and further comprises a lid provided so that the degree of opening can be adjusted.

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