Solid chlorine dioxide and application thereof on plate

Abstract

The invention provides solid chlorine dioxide and an application of the solid chlorine dioxide on a plate. The solid chlorine dioxide comprises 2.5-10% of sodium chlorite; 2.5%-10% of potassium chlorite; 50 to 90 percent of modified medical stone; 1-10% of tartaric acid; 1-10% of a stabilizer; and 0-5% of sodium dichloroisocyanurate. The preparation method has the beneficial effects that the adsorption capacity of the medical stone can be enhanced by activating the medical stone, the release rate can be well controlled by adding a certain amount of magnesium sulfate, calcium chloride and sodium dichloroisocyanurate, and the smaller the relative humidity is, the smoother the release of chlorine dioxide is.

Description

Technical Field

[0001] The invention belongs to the technical field of disinfectants, and in particular relates to solid chlorine dioxide and application thereof on a plate. Background Art

[0002] Chlorine dioxide is a gas with a pungent odor at room temperature and pressure. It is highly oxidizing and is recognized as a broad-spectrum bactericide and green disinfectant at home and abroad. It has strong bactericidal ability and high efficiency. It can kill a variety of pathogens at low concentrations, such as Escherichia coli, Salmonella, yeast and mold. At the same time, chlorine dioxide has good safety. During the disinfection process, it will not react with organic matter to generate organic chlorides or other toxic substances with "triple-causing (mutagenic, carcinogenic and teratogenic) benefits" like other chlorine disinfectants.

[0003] Although chlorine dioxide has broad application prospects in many industries, it has certain limitations in practical applications due to its own physical and chemical properties. Gaseous chlorine dioxide is difficult to store and transport, and there is a risk of explosion. It is also easy to decompose and deteriorate when exposed to heat or light, so it must be prepared and used at the site of use. Liquid chlorine dioxide is extremely unstable and difficult to store for a long time. Invention content

[0004] In view of this, the present invention aims to provide a solid chlorine dioxide and its application on a plate to solve at least one technical problem in the background technology.

[0005] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0006] A solid chlorine dioxide and its application on a plate, comprising by mass percentage:

[0007] Sodium chlorite 2.5-10%;

[0008] Potassium chlorite 2.5-10%;

[0009] Modified medical stone 50-90%;

[0010] Tartaric acid 1-10%;

[0011] Stabilizer 1-10%;

[0012] Sodium dichloroisocyanurate 0-5%.

[0013] Furthermore, the stabilizers are magnesium sulfate and calcium chloride.

[0014] Furthermore, the mass ratio of sodium chlorite to potassium chlorite is 1:1 to 1.5.

[0015] Furthermore, the chlorine dioxide content in the solid chlorine dioxide sustained-release agent is 5% to 20%.

[0016] Furthermore, the preparation of modified medical stone comprises the following steps:

[0017] S1: Dissolving sodium sulfate: adding sodium sulfate into an appropriate amount of distilled water and stirring to obtain a sodium sulfate solution;

[0018] S2: Slowly pour the dissolved sodium sulfate solution into the medical stone and stir;

[0019] S3: letting the mixed medical stone and sodium sulfate solution stand;

[0020] S4: filtering the medical stone solution after the reaction is completed, washing the solid precipitate, and obtaining modified medical stone.

[0021] Furthermore, the concentration of the sodium sulfate solution in step S1 is 0.5 mol / L.

[0022] Furthermore, the standing time in step S3 is 1-1.5h.

[0023] The preparation method of the above-mentioned solid chlorine dioxide and its application on the plate comprises the following steps:

[0024] S1: adding sodium chlorite, potassium chlorite, tartaric acid, stabilizer and sodium dichloroisocyanurate into deionized water to prepare an impregnation solution;

[0025] S2: placing the modified medical stone in the impregnation solution obtained in step S1, controlling the temperature of the impregnation solution to 80-100 degrees Celsius, impregnating for at least 4 hours, filtering and drying, and obtaining a solid chlorine dioxide disinfectant.

[0026] The application of chlorine dioxide disinfectant on the board is to set the board and the solid chlorine dioxide disinfectant together in an environment with a temperature of 20-25°C and a humidity of 50-55%. The chlorine dioxide concentration is stabilized at 30-100ppm.

[0027] Compared with the prior art, the solid chlorine dioxide and its application on the plate created by the present invention have the following advantages:

[0028] The addition of medical stone in the present application can significantly reduce the peak value of the release rate, eliminate the sudden release phenomenon, increase the later release rate, and enhance the later bactericidal effect; activating the medical stone can enhance its adsorption capacity, and adding a certain amount of magnesium sulfate, calcium chloride and sodium dichloroisocyanurate can better control the release rate; the lower the relative humidity, the smoother the release of chlorine dioxide.

[0029] Sodium dichloroisocyanurate changes the release cycle and peak release rate of chlorine dioxide, and prepares a solid chlorine dioxide slow-release agent at room temperature. This product can utilize the humidity of the environment to achieve a slow release of chlorine dioxide.

[0030] The controlled slow-release chlorine dioxide material provided by the present invention is stable in storage and transportation, has no chlorine dioxide leakage, and has a long shelf life.

[0031] The application of chlorine dioxide disinfectant on the board, the formaldehyde volatilization rate of the board is the fastest at 20-25℃, and this application can remove the formaldehyde volatilized from the board as quickly as possible without damaging the board. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0033] The present invention will be described in detail below with reference to embodiments.

[0034] Example 1

[0035] A solid chlorine dioxide and application thereof on a plate, comprising, by mass percentage: 5g of sodium chlorite; 5g of potassium chlorite; 75g of modified medical stone; 5g of tartaric acid; 5g of magnesium sulfate, 5g of calcium chloride, and 5g of sodium dichloroisocyanurate.

[0036] The preparation of modified medical stone comprises the following steps:

[0037] S1: Dissolving sodium sulfate: adding sodium sulfate into an appropriate amount of distilled water and stirring to obtain a sodium sulfate solution; the concentration of the sodium sulfate solution is 0.5 mol / L.

[0038] S2: Slowly pour the dissolved sodium sulfate solution into the medical stone and stir;

[0039] S3: Let the mixed medical stone and sodium sulfate solution stand for 1 hour;

[0040] S4: filtering the medical stone solution after the reaction is completed, washing the solid precipitate, and obtaining modified medical stone.

[0041] The preparation method of the above-mentioned solid chlorine dioxide and its application on the plate comprises the following steps:

[0042] S1: adding sodium chlorite, potassium chlorite, tartaric acid, stabilizer and sodium dichloroisocyanurate into deionized water to prepare an impregnation solution;

[0043] S2: placing the modified medical stone in the impregnation solution obtained in step S1, controlling the temperature of the impregnation solution to 80-100 degrees Celsius, impregnating for at least 4 hours, filtering and drying, and obtaining a solid chlorine dioxide disinfectant.

[0044] The above 3 g mixture was placed in a glass tube with an inner diameter of 1.2 cm. Air with a temperature of 25° C. and a humidity of 50% was passed from the inlet of the glass tube into the packed bed at a volume flow rate of 100 sccm using a gas mass flow controller. The outlet concentration of chlorine dioxide was measured using a chlorine dioxide detection tube at the outlet of the packed bed. The chlorine dioxide concentration was stabilized at 1.8-2.0 ppm.

[0045] Example 2

[0046] A solid chlorine dioxide and application thereof on a plate, comprising, by mass percentage: 5g of sodium chlorite; 10g of potassium chlorite; 70g of modified medical stone; 5g of tartaric acid; 5g of magnesium sulfate, 5g of calcium chloride, and 5g of sodium dichloroisocyanurate.

[0047] The preparation of modified medical stone comprises the following steps:

[0048] S1: Dissolving sodium sulfate: adding sodium sulfate into an appropriate amount of distilled water and stirring to obtain a sodium sulfate solution; the concentration of the sodium sulfate solution is 0.5 mol / L.

[0049] S2: Slowly pour the dissolved sodium sulfate solution into the medical stone and stir;

[0050] S3: Let the mixed medical stone and sodium sulfate solution stand for 1 hour;

[0051] S4: filtering the medical stone solution after the reaction is completed, washing the solid precipitate, and obtaining modified medical stone.

[0052] The preparation method of the above-mentioned solid chlorine dioxide and its application on the plate comprises the following steps:

[0053] S1: adding sodium chlorite, potassium chlorite, tartaric acid, stabilizer and sodium dichloroisocyanurate into deionized water to prepare an impregnation solution;

[0054] S2: placing the modified medical stone in the impregnation solution obtained in step S1, controlling the temperature of the impregnation solution to 80-100 degrees Celsius, impregnating for at least 4 hours, filtering and drying, and obtaining a solid chlorine dioxide disinfectant.

[0055] The above 3 g mixture was placed in a glass tube with an inner diameter of 1.2 cm. Air with a temperature of 25° C. and a humidity of 50% was passed from the inlet of the glass tube into the packed bed at a volume flow rate of 100 sccm using a gas mass flow controller. The outlet concentration of chlorine dioxide was measured using a chlorine dioxide detection tube at the outlet of the packed bed. The chlorine dioxide concentration was stabilized at 1.8-2.0 ppm.

[0056] Example 3

[0057] A solid chlorine dioxide and application thereof on a plate, comprising, by mass percentage: 5g of sodium chlorite; 5g of potassium chlorite; 77.5g of modified medical stone; 2.5g of tartaric acid; 5g of magnesium sulfate, 5g of calcium chloride, and 5g of sodium dichloroisocyanurate.

[0058] The preparation of modified medical stone comprises the following steps:

[0059] S1: Dissolving sodium sulfate: adding sodium sulfate into an appropriate amount of distilled water and stirring to obtain a sodium sulfate solution; the concentration of the sodium sulfate solution is 0.5 mol / L.

[0060] S2: Slowly pour the dissolved sodium sulfate solution into the medical stone and stir;

[0061] S3: Let the mixed medical stone and sodium sulfate solution stand for 1 hour;

[0062] S4: filtering the medical stone solution after the reaction is completed, washing the solid precipitate, and obtaining modified medical stone.

[0063] The preparation method of the above-mentioned solid chlorine dioxide and its application on the plate comprises the following steps:

[0064] S1: adding sodium chlorite, potassium chlorite, tartaric acid, stabilizer and sodium dichloroisocyanurate into deionized water to prepare an impregnation solution;

[0065] S2: placing the modified medical stone in the impregnation solution obtained in step S1, controlling the temperature of the impregnation solution to 80-100 degrees Celsius, impregnating for at least 4 hours, filtering and drying, and obtaining a solid chlorine dioxide disinfectant.

[0066] The above 3 g mixture was placed in a glass tube with an inner diameter of 1.2 cm. Air with a temperature of 25° C. and a humidity of 50% was passed from the inlet of the glass tube into the packed bed at a volume flow rate of 100 sccm using a gas mass flow controller. The outlet concentration of chlorine dioxide was measured using a chlorine dioxide detection tube at the outlet of the packed bed. The chlorine dioxide concentration was stabilized at 1.8-2.0 ppm.

[0067] The application of chlorine dioxide disinfectant on the board, the board and solid chlorine dioxide disinfectant are set together in an environment with a temperature of 25°C and a humidity of 55%. The chlorine dioxide concentration is stabilized at 100ppm. Every half an hour, a formaldehyde detection instrument is used to measure the formaldehyde in the air. When the requirements are met, the board is removed and the treatment is stopped.

[0068] The chlorine dioxide gas released by solid chlorine dioxide can also react with odor substances (such as organic sulfides, organic amines, phenols, etc.) to purify the air. Chlorine dioxide has excellent bactericidal effects, prevents bacterial growth, produces odor molecules, and controls odor generation from the source. Using solid chlorine dioxide as an air purifier has the advantages of broad spectrum, safety, high efficiency, and no side effects.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid chlorine dioxide, characterized in that: Included by mass percentage: Sodium chlorite 2.5-10%; Potassium chlorite 2.5-10%; Modified medical stone 50-90%; Tartaric acid 1-10%; Stabilizer 1-10%; Sodium dichloroisocyanurate 0-5%.

2. A solid chlorine dioxide according to claim 1, characterized in that: Stabilizers are magnesium sulfate and calcium chloride.

3. A solid chlorine dioxide according to claim 1, characterized in that: The mass ratio of sodium chlorite to potassium chlorite is 1:1-1.

5.

4. The solid chlorine dioxide and its application on a plate according to claim 1, characterized in that: The chlorine dioxide content in the solid chlorine dioxide slow-release agent is 5% to 20%.

5. A solid chlorine dioxide according to claim 1, characterized in that: The preparation of modified medical stone comprises the following steps: S1: Dissolving sodium sulfate: adding sodium sulfate into an appropriate amount of distilled water and stirring to obtain a sodium sulfate solution; S2: Slowly pour the dissolved sodium sulfate solution into the medical stone and stir; S3: letting the mixed medical stone and sodium sulfate solution stand; S4: filtering the medical stone solution after the reaction is completed, washing the solid precipitate, and obtaining modified medical stone.

6. A solid chlorine dioxide according to claim 5, characterized in that: The concentration of the sodium sulfate solution in step S1 is 0.5 mol / L.

7. A solid chlorine dioxide according to claim 5, characterized in that: The standing time in step S3 is 1-1.5 h.

8. A method for preparing solid chlorine dioxide according to any one of claims 1 to 7, characterized in that: The steps include: S1: adding sodium chlorite, potassium chlorite, tartaric acid, stabilizer and sodium dichloroisocyanurate into deionized water to prepare an impregnation solution; S2: placing the modified medical stone in the impregnation solution obtained in step S1, controlling the temperature of the impregnation solution to 80-100 degrees Celsius, impregnating for at least 4 hours, filtering and drying, and obtaining a solid chlorine dioxide disinfectant.

9. The solid chlorine dioxide according to any one of claims 1 to 7 is applied to a plate, characterized in that: The plate and solid chlorine dioxide disinfectant are placed together in an environment with a temperature of 20-25°C and a humidity of 50-55%, and the chlorine dioxide concentration is stabilized at 1.8-2.0 ppm.