CN112586506A - High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof - Google Patents
High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof Download PDFInfo
- Publication number
- CN112586506A CN112586506A CN202011570647.XA CN202011570647A CN112586506A CN 112586506 A CN112586506 A CN 112586506A CN 202011570647 A CN202011570647 A CN 202011570647A CN 112586506 A CN112586506 A CN 112586506A
- Authority
- CN
- China
- Prior art keywords
- parts
- hypochlorous acid
- aqueous solution
- acid aqueous
- calcium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- A01N25/02—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 liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Inorganic Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to a high-stability molecular hypochlorous acid aqueous solution, which comprises the following raw materials in parts by weight: 35-45 parts of dilute hydrochloric acid, 4-6 parts of flocculant, 30-50 parts of sodium chloride, 500 parts of water, 1-5 parts of stabilizer, 2-4 parts of slow release agent, 6-10 parts of calcium hydroxide, 5-10 parts of calcium chloride and 5-9 parts of calcium hypochlorite. The invention also discloses a preparation method of the high-stability molecular hypochlorous acid aqueous solution. According to the invention, the flocculant filters impurities in water after flocculation and precipitation, so that the impurity content in the prepared hypochlorous acid aqueous solution is reduced, and the influence of harmful impurities on the effect of the hypochlorous acid aqueous solution is avoided. And the prepared hypochlorous acid aqueous solution is more stable by adding the stabilizing agent, the slow release agent, the calcium hydroxide, the calcium chloride and the calcium hypochlorite.
Description
Technical Field
The invention relates to the field of electrical contact materials, in particular to a high-stability molecular hypochlorous acid aqueous solution and a preparation method thereof.
Background
Recently, the epidemic situation of novel coronavirus (such as COVID-19) occurs, which not only causes the shortage of alcohol disinfection products in the market, but also shows the importance of hypochlorous acid water on environmental cleaning and disinfection.
Hypochlorous acid is a weak acid which is substantially in the form of molecules at a pH of 3 to 6 in an aqueous solution (HC10), and is mostly dissociated into hypochlorite ions (C107) at a pH of 9 or more, whereas toxic chlorine gas is easily generated at a pH of 3 or less. It is generally believed that molecular form hypochlorous acid is the main substance responsible for the disinfection. In terms of bactericidal power, hypochlorous acid molecules have a sterilizing power about 80 to 100 times that of hypochlorite ions, and mainly destroy the protein molecular structure of pathogens by oxidation, thereby killing bacteria and inhibiting the activity of viruses.
Hypochlorous acid water is generally prepared by electrolysis of an aqueous solution of an alkali metal chloride or alkali metal chloride, for example, by electrolysis of aqueous solutions of sodium chloride and potassium chloride to obtain hypochlorous acid at the anode of the electrolysis electrode. The hypochlorite aqueous solution obtained by the electrolysis method is weak alkaline, and acidic active ingredients such as hydrochloric acid, phosphoric acid, citric acid and the like are usually added to reduce the pH value so as to enhance the disinfection capacity of the hypochlorite aqueous solution. However, the metal salt ions remaining from electrolysis may cause hypochlorous acid to be reduced rapidly and lose its cleaning and disinfecting abilities, resulting in a shortened commercial life of hypochlorous acid water. Accordingly, it has been proposed to improve the quality of hypochlorous acid water by removing metal salt ions from the hypochlorite water solution.
However, the hypochlorous acid aqueous solution prepared at present is generally prepared by using tap water and common salt, so that the prepared hypochlorous acid aqueous solution contains excessive impurities, the prepared hypochlorous acid aqueous solution has low stability, and the cleaning and disinfecting capability of the hypochlorous acid aqueous solution is rapidly lost at a later stage.
Disclosure of Invention
The invention aims to: provides a high-stability molecular hypochlorous acid aqueous solution and a preparation method thereof, aiming at solving the problems that the stability of the hypochlorous acid aqueous solution is not high and the cleaning and disinfection capability of the hypochlorous acid aqueous solution is rapidly lost in the later period.
In order to achieve the above purpose, the invention provides the following technical scheme:
a high-stability molecular hypochlorous acid aqueous solution comprises the following raw materials in parts by weight: 35-45 parts of dilute hydrochloric acid, 4-6 parts of flocculant, 30-50 parts of sodium chloride, 500 parts of water, 1-5 parts of stabilizer, 2-4 parts of slow release agent, 6-10 parts of calcium hydroxide, 5-10 parts of calcium chloride and 5-9 parts of calcium hypochlorite.
Preferably, the stabilizer is one of hydrofluoric acid, magnesium carbonate, sodium dihydrogen phosphate and sodium dihydrogen phosphate.
Preferably, the slow release agent is one of magnesium lithium silicate, magnesium aluminum silicate and sodium hydroxymethyl cellulose.
Preferably, sodium silicate is used as the flocculant.
Preferably, the dilute hydrochloric acid is an 18% dilute hydrochloric acid solution in mass fraction.
A preparation method of a high-stability molecular hypochlorous acid aqueous solution comprises the following specific steps:
s1: preparing purified water;
s2: mixing purified water, dilute hydrochloric acid and sodium chloride, and electrifying for constant current electrolysis to prepare a hypochlorous acid aqueous solution;
s3: to the hypochlorous acid aqueous solution in step S2, a stabilizer, a slow-release agent, calcium hydroxide, calcium chloride, and calcium hypochlorite were added and mixed to prepare a stable hypochlorous acid aqueous solution.
Preferably, the preparation of purified water in step S1 includes the steps of adding a flocculant to water to flocculate and precipitate metal impurities in the aqueous solution, and after a rough filtration process, obtaining purified water required as a raw material through a reverse osmosis membrane.
Preferably, in step S3, the hypochlorous acid aqueous solution is prepared to be stabilized at pH 6.2 so that the percentage of hypochlorous acid in the available chlorine content is maintained at 92.5% or more.
The invention has the beneficial effects that:
according to the invention, impurities in water are filtered after flocculation precipitation through the flocculating agent, so that the impurity content in the prepared hypochlorous acid aqueous solution is reduced, and the influence of harmful impurities on the effect of the hypochlorous acid aqueous solution is avoided. And the prepared hypochlorous acid aqueous solution is more stable by adding the stabilizing agent, the slow release agent, the calcium hydroxide, the calcium chloride and the calcium hypochlorite.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-stability molecular hypochlorous acid aqueous solution comprises the following raw materials in parts by weight: 35 parts of dilute hydrochloric acid, 4 parts of sodium silicate, 30 parts of sodium chloride, 500 parts of water, 1 part of hydrofluoric acid, 2 parts of magnesium lithium silicate, 6 parts of calcium hydroxide, 5 parts of calcium chloride and 5 parts of calcium hypochlorite.
Example 2
A high-stability molecular hypochlorous acid aqueous solution comprises the following raw materials in parts by weight: 45 parts of dilute hydrochloric acid, 6 parts of sodium silicate, 50 parts of sodium chloride, 500 parts of water, 5 parts of magnesium carbonate, 4 parts of magnesium aluminum silicate, 10 parts of calcium hydroxide, 10 parts of calcium chloride and 9 parts of calcium hypochlorite.
Example 3
A high-stability molecular hypochlorous acid aqueous solution comprises the following raw materials in parts by weight: 40 parts of dilute hydrochloric acid, 5 parts of sodium silicate, 37 parts of sodium chloride, 500 parts of water, 3 parts of sodium dihydrogen phosphate, 2 parts of sodium carboxymethylcellulose, 8 parts of calcium hydroxide, 6 parts of calcium chloride and 7 parts of calcium hypochlorite.
The above examples were all prepared using the following preparation method:
a preparation method of a high-stability molecular hypochlorous acid aqueous solution comprises the following specific steps:
s1: preparing purified water, adding a flocculating agent into the water, flocculating and precipitating metal impurities in the water solution, and obtaining the purified water required by the raw material through a reverse osmosis membrane after rough filtration processing treatment;
s2: mixing purified water, dilute hydrochloric acid and sodium chloride, and electrifying for constant current electrolysis to prepare a hypochlorous acid aqueous solution;
s3: to the hypochlorous acid aqueous solution in step S2, a stabilizer, a slow-release agent, calcium hydroxide, calcium chloride, and calcium hypochlorite were added and mixed to prepare a stable hypochlorous acid aqueous solution. The pH was stabilized at about 6.2 to maintain the percentage of hypochlorous acid in the available chlorine at 92.5% or more, yielding a slightly acidic hypochlorous acid aqueous solution.
Wherein the available chlorine content after preparation is 195 PPM.
Comparative example 1
45 parts of dilute hydrochloric acid, 50 parts of sodium chloride and 500 parts of water.
Comparative example 2
35 parts of dilute hydrochloric acid, 30 parts of sodium chloride and 500 parts of water.
The comparative example adopts water, dilute hydrochloric acid and sodium chloride to be mixed, and the hypochlorous acid aqueous solution is prepared by electrifying and electrolyzing with constant current.
Performance testing
The method comprises the steps of placing the examples and the comparative examples in an indoor environment at the normal temperature of 25 ℃ for natural placement, and then testing the content of the available chlorine. The results of the experiments are shown in the following table.
As can be seen from the above table: the aqueous hypochlorous acid solution prepared in the examples is superior to the comparative examples; in addition, it can be seen that the hypochlorous acid aqueous solution after adding the stabilizer, the slow release agent, the calcium hydroxide, the calcium chloride and the calcium hypochlorite is more stable.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A high-stability molecular hypochlorous acid aqueous solution is characterized by comprising the following raw materials in parts by weight: 35-45 parts of dilute hydrochloric acid, 4-6 parts of flocculant, 30-50 parts of sodium chloride, 500 parts of water, 1-5 parts of stabilizer, 2-4 parts of slow release agent, 6-10 parts of calcium hydroxide, 5-10 parts of calcium chloride and 5-9 parts of calcium hypochlorite.
2. The highly stable molecular hypochlorous acid aqueous solution as claimed in claim 1, wherein said stabilizer is one of hydrofluoric acid, magnesium carbonate, sodium dihydrogen phosphate and sodium dihydrogen phosphate.
3. The highly stable aqueous solution of molecular hypochlorous acid as claimed in claim 1, wherein said slow release agent is one of lithium magnesium silicate, magnesium aluminum silicate and sodium carboxymethylcellulose.
4. The highly stable molecular hypochlorous acid aqueous solution as claimed in claim 1, wherein said flocculating agent comprises sodium silicate.
5. The highly stable molecular hypochlorous acid solution as claimed in claim 1, wherein said diluted hydrochloric acid is 18% by weight.
6. A preparation method of a high-stability molecular hypochlorous acid aqueous solution is characterized by comprising the following steps: the method comprises the following specific steps:
s1: preparing purified water;
s2: mixing purified water, dilute hydrochloric acid and sodium chloride, and electrifying for constant current electrolysis to prepare a hypochlorous acid aqueous solution;
s3: to the hypochlorous acid aqueous solution in step S2, a stabilizer, a slow-release agent, calcium hydroxide, calcium chloride, and calcium hypochlorite were added and mixed to prepare a stable hypochlorous acid aqueous solution.
7. The method for preparing a highly stable molecular hypochlorous acid aqueous solution as claimed in claim 6, wherein: the step S1 of preparing purified water includes the steps of adding a flocculating agent to the water to flocculate and precipitate the metal impurities in the water solution, and obtaining the purified water required by the raw material through a reverse osmosis membrane after rough filtration processing.
8. The method for preparing a highly stable molecular hypochlorous acid aqueous solution as claimed in claim 6, wherein: in step S3, the hypochlorous acid aqueous solution is prepared to be stabilized at pH 6.2 so that the percentage of hypochlorous acid in the available chlorine content is maintained at 92.5% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011570647.XA CN112586506A (en) | 2020-12-26 | 2020-12-26 | High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011570647.XA CN112586506A (en) | 2020-12-26 | 2020-12-26 | High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112586506A true CN112586506A (en) | 2021-04-02 |
Family
ID=75202620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011570647.XA Pending CN112586506A (en) | 2020-12-26 | 2020-12-26 | High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112586506A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130146472A1 (en) * | 2011-12-13 | 2013-06-13 | Aquaox Inc. | Apparatus and method for generating a stabilized sanitizing solution |
| CN103501605A (en) * | 2011-03-11 | 2014-01-08 | 仿生健康产业有限公司 | A stable composition of HOCl, processes for its production and uses thereof |
| CN111937900A (en) * | 2020-08-20 | 2020-11-17 | 开平市美康泉生物科技有限公司 | High-stability molecular hypochlorous acid disinfectant and preparation method thereof |
| CN112042667A (en) * | 2020-08-21 | 2020-12-08 | 山东知能环保科技有限公司 | Stable hypochlorous acid disinfectant and preparation method thereof |
-
2020
- 2020-12-26 CN CN202011570647.XA patent/CN112586506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501605A (en) * | 2011-03-11 | 2014-01-08 | 仿生健康产业有限公司 | A stable composition of HOCl, processes for its production and uses thereof |
| US20130146472A1 (en) * | 2011-12-13 | 2013-06-13 | Aquaox Inc. | Apparatus and method for generating a stabilized sanitizing solution |
| CN111937900A (en) * | 2020-08-20 | 2020-11-17 | 开平市美康泉生物科技有限公司 | High-stability molecular hypochlorous acid disinfectant and preparation method thereof |
| CN112042667A (en) * | 2020-08-21 | 2020-12-08 | 山东知能环保科技有限公司 | Stable hypochlorous acid disinfectant and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112042667A (en) | Stable hypochlorous acid disinfectant and preparation method thereof | |
| GB201104180D0 (en) | A stable composition of HOCI, process for its production and uses thereof | |
| KR20160143850A (en) | Acidic electrolyzed water and manufacturing method therefor, disinfectant and cleanser containing acidic electrolyzed water, disinfecting method using acidic electrolyzed water, and manufacturing device for acidic electrolyzed water | |
| RU2012107234A (en) | FLOWER CONSERVANT | |
| CN105836860B (en) | A kind of stable type dioxygen aqueous disinfectant and its application in drinking water disinfection | |
| AU2002328976A1 (en) | Disinfectant solution based on sodium hypochlorite, and process for preparing it | |
| CN112586506A (en) | High-stability molecular-state hypochlorous acid aqueous solution and preparation method thereof | |
| CN112323090B (en) | Hypochlorous acid solution capable of being stably stored and preparation method thereof | |
| CN113729033A (en) | Chlorine-containing disinfectant with high thermal stability and preparation method thereof | |
| JP2021172649A (en) | Aqueous solution having hypochlorous acid as main component | |
| KR101424140B1 (en) | Aqueous solution for purification purposes, and method for producing same | |
| WO2013068599A2 (en) | Process for producing an anolyte composition | |
| CN108609693A (en) | A kind of preparation method of acid water and alkaline water | |
| CN111747581A (en) | Micro-acid electrolyzed water and preparation method thereof | |
| CN112262853A (en) | Preparation method of slightly acidic carbonic acid type hypochlorous acid water disinfectant | |
| CN112374464A (en) | Method and equipment for preparing hypochlorous acid by combining ion exchange method with electrolysis method | |
| WO2017078938A1 (en) | Acidic electrolyzed water and manufacturing method therefor, disinfectant and cleanser containing acidic electrolyzed water, and manufacturing device for acidic electrolyzed water | |
| CN110937669A (en) | Treating agent and method for treating fracturing flowback fluid | |
| CN111493086A (en) | Acidic oxidation potential aqueous solution capable of killing coronavirus, production device, production process and application thereof | |
| KR100700923B1 (en) | Silicate content an ingredient annex Drinking Alkaline Water method of manufacture. | |
| CN111437434B (en) | Hypochlorous acid liquid dressing and preparation method thereof | |
| CN108079017A (en) | Hypochlorous acid wound disinfectant containing antibacterial polysaccharide compound or derivative | |
| CN117678599B (en) | Hypochlorous acid disinfectant with improved stability and sterilization effect and preparation method thereof | |
| CN107410361A (en) | A kind of preparation method of disinfectant | |
| JP4375880B2 (en) | Flocculant for water treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
|
| RJ01 | Rejection of invention patent application after publication |