CN112825851A - High-stability 84 disinfectant with corrosion inhibition effect and preparation method thereof - Google Patents
High-stability 84 disinfectant with corrosion inhibition effect and preparation method thereof Download PDFInfo
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- CN112825851A CN112825851A CN202110031173.XA CN202110031173A CN112825851A CN 112825851 A CN112825851 A CN 112825851A CN 202110031173 A CN202110031173 A CN 202110031173A CN 112825851 A CN112825851 A CN 112825851A
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- sodium
- disinfectant
- stabilizer
- stability
- sodium hypochlorite
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- 239000000645 desinfectant Substances 0.000 title claims abstract description 72
- 230000007797 corrosion Effects 0.000 title claims abstract description 38
- 238000005260 corrosion Methods 0.000 title claims abstract description 38
- 230000000694 effects Effects 0.000 title claims abstract description 28
- 230000005764 inhibitory process Effects 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims description 15
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 36
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003381 stabilizer Substances 0.000 claims abstract description 25
- 239000008139 complexing agent Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003112 inhibitor Substances 0.000 claims abstract description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 51
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims description 32
- 230000000249 desinfective effect Effects 0.000 claims description 15
- 239000012964 benzotriazole Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000004115 Sodium Silicate Substances 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 3
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 3
- UXYAJXBVMZFRMS-UHFFFAOYSA-N 2-hydroxy-1,3,2$l^{5}-dioxaphosphepane 2-oxide Chemical compound OP1(=O)OCCCCO1 UXYAJXBVMZFRMS-UHFFFAOYSA-N 0.000 claims description 2
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 claims description 2
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims description 2
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 2
- BEGBSFPALGFMJI-UHFFFAOYSA-N ethene;sodium Chemical group [Na].C=C BEGBSFPALGFMJI-UHFFFAOYSA-N 0.000 claims description 2
- 229960003540 oxyquinoline Drugs 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- 235000011118 potassium hydroxide Nutrition 0.000 claims description 2
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims description 2
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 2
- 235000019983 sodium metaphosphate Nutrition 0.000 claims description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims 1
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 24
- 230000001954 sterilising effect Effects 0.000 abstract description 23
- 241000700605 Viruses Species 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 24
- 238000003756 stirring Methods 0.000 description 22
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 17
- 239000000460 chlorine Substances 0.000 description 17
- 229910052801 chlorine Inorganic materials 0.000 description 17
- 239000002994 raw material Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 6
- 239000001488 sodium phosphate Substances 0.000 description 6
- 229910000162 sodium phosphate Inorganic materials 0.000 description 6
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- -1 Ethylenediaminetetraacetic acid methylene sodium salt Chemical class 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 230000002779 inactivation Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000006084 composite stabilizer Substances 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 244000063299 Bacillus subtilis Species 0.000 description 2
- 235000014469 Bacillus subtilis Nutrition 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 241000194017 Streptococcus Species 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- LGNQGTFARHLQFB-UHFFFAOYSA-N 1-dodecyl-2-phenoxybenzene Chemical compound CCCCCCCCCCCCC1=CC=CC=C1OC1=CC=CC=C1 LGNQGTFARHLQFB-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 235000019830 sodium polyphosphate Nutrition 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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
- 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
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a high-stability 84 disinfectant with a corrosion inhibition effect, which comprises the following components in parts by weight: 5-50% of sodium hypochlorite solution, 0.5-5% of acid-base regulator, 1-10% of stabilizer, 5-20% of corrosion inhibitor, 0.1-2% of complexing agent and the balance of water. The invention not only makes the disinfectant have certain corrosion inhibition, solves the problem of high corrosivity of the disinfectant, but also further improves the stability and the disinfection and sterilization capability of the disinfectant, and can quickly kill various common bacteria and viruses; the problem that the corrosion inhibition, the stability and the sterilization performance of the existing sodium hypochlorite disinfectant can not be considered at the same time is solved.
Description
Technical Field
The invention belongs to the field of disinfectant preparation, and particularly relates to a high-stability 84 disinfectant with a corrosion inhibition effect and a preparation method thereof.
Background
The chlorine-containing disinfectant is a chemical disinfectant which is applied earliest and used most widely, and has the advantages of wide sterilization range, quick and efficient sterilization effect, simple production, low price and the like. At present, the chlorine-containing disinfectant with the largest sale amount in domestic and overseas markets is a sodium hypochlorite disinfectant, is sold under the brand name of '84 disinfectant' in China, and is widely applied to various fields such as hotels, medical institutions, industry, agriculture, food industry, pharmaceutical industry, breeding industry and the like.
However, the currently used sodium hypochlorite disinfectant mainly has the following problems: (1) the effective components of the sodium hypochlorite disinfectant are unstable, the solution needs to be sealed and stored in a dark and heat-avoiding way, and the effective chlorine content of the sodium hypochlorite disinfectant is gradually lost along with the increase of the storage time, so that the sterilization and disinfection effects are reduced, the sodium hypochlorite disinfectant is inconvenient to transport and must be prepared for use. (2) The available chlorine of the sodium hypochlorite has strong oxidizing property, and is easy to corrode metal equipment, pipelines and the like when in use. (3) Although many products can solve the problem of instability of sodium hypochlorite by adding a plurality of stabilizers, the sterilization effect is greatly reduced.
Chinese patent document CN110402957A (CN201910775945.3) provides a stable 84 disinfectant, which comprises the following raw materials in percentage by weight: 50 percent of sodium hypochlorite solution, 0.4 to 2 percent of sodium hydroxide, 0.5 to 2 percent of composite stabilizer A, 0.1 to 2 percent of composite stabilizer B and the balance of purified water, and the pH value is adjusted to 11 to 13.5. The composite stabilizer comprises A andchlorination ofTwo or three of sodium, sodium silicate and disodium ethylenediamine tetraacetate are compounded. The compound stabilizer B is formed by compounding two or one of dodecyl dimethyl amine oxide and dodecyl diphenyl ether sodium disulfonate. The disinfectant is compounded by a plurality of stabilizers, and the pH value is 11-13.5. However, in general, the pH of the sodium hypochlorite solution is increased, and then the stabilizing agent is added, so that the stability of the solution is enhanced, but the sterilization effect of the sodium hypochlorite is obviously reduced under the condition of high pH. The existing 84 disinfectant cannot improve stability and simultaneously give consideration to a sterilization effect.
Disclosure of Invention
The invention provides a high-stability 84 disinfectant with a corrosion inhibition effect and a preparation method thereof, aiming at solving the problem that the stability and the sterilization effect of a sodium hypochlorite disinfectant are difficult to be considered at the same time in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-stability 84 disinfectant with a corrosion inhibition effect is characterized by comprising the following components in parts by weight: 5-50% of sodium hypochlorite solution, 0.5-5% of acid-base regulator, 1-10% of stabilizer, 5-20% of corrosion inhibitor, 0.1-2% of complexing agent and the balance of water.
Preferably, the sodium hypochlorite solution is 10-30%, the acid-base regulator is 1-2.0%, the stabilizer is 2-3%, the corrosion inhibitor is 6-8%, and the complexing agent is 0.1-0.2%. Preferably, the mass fraction of the sodium hypochlorite solution is 10%.
Preferably, the acid-base regulator is one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium pyrophosphate and sodium tripolyphosphate; sodium hydroxide is preferred.
Preferably, the stabilizer is one or more of disodium ethylene diamine tetraacetate, sodium bromide, sodium silicate, sodium metaphosphate and 8-hydroxyquinoline. Sodium bromide and sodium silicate are preferred. Sodium bromide is more preferable.
Preferably, the corrosion inhibitor is benzotriazole.
Preferably, the complexing agent is sodium ethylene diamine tetra methylene phosphate.
The invention also provides a preparation method of the 84 disinfectant, which is characterized in that,
uniformly mixing a complexing agent and water, adding a corrosion inhibitor and a stabilizer, stirring for 0.5-2 hours at normal temperature and normal pressure until the mixture is uniformly stirred, then adding a sodium hypochlorite solution, continuously stirring, finally adding an acid-base regulator, adjusting the pH value of a system to 9-10, standing for 8-12 hours, filtering and packaging.
The normal temperature of the invention is 20-25 ℃, and the normal pressure is 1 standard atmospheric pressure.
The invention has the beneficial effects that:
the 84 disinfectant prepared by the invention is added with a stabilizing agent, a corrosion inhibitor and a complexing agent in a certain proportion, and the pH value is adjusted to about 9-10. The technical scheme not only ensures that the disinfectant has certain corrosion inhibition, solves the problem of high corrosivity of the disinfectant, but also further improves the stability and the disinfection and sterilization capability of the disinfectant, and can quickly kill various common bacteria and viruses; the problem that the corrosion inhibition, the stability and the sterilization performance of the existing sodium hypochlorite disinfectant can not be considered at the same time is solved.
The disinfectant provided by the invention has a good inhibition effect on corrosion of a metal object surface; the stability is strong, and the shelf life can reach 1-2 years; and the preparation process is simple and is suitable for industrial production.
Detailed Description
The technical means of the present invention will be described in detail below by way of specific embodiments.
Example 1
A high-stability 84 disinfectant with a corrosion inhibition effect comprises the following components in percentage by weight:
TABLE 1
| Raw materials | Content (%) | Single component action |
| Sodium hypochlorite solution with mass fraction of 10% | 30 | Sterilizing and disinfecting |
| Ethylenediaminetetraacetic acid methylene sodium salt | 0.2 | Complexing agents |
| Sodium bromide | 3 | Stabilizer |
| Benzotriazole | 6 | Corrosion inhibitor |
| Sodium hydroxide | 1.5 | Alkali regulator |
| Water (W) | Balance of | Solvent(s) |
The preparation method of the high-stability corrosion-inhibition type 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 1, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle for stirring, then sequentially adding benzotriazole and sodium bromide, stirring for 1 hour at normal temperature and normal pressure until the materials are uniformly stirred, adding a sodium hypochlorite solution, finally adding sodium hydroxide, adjusting the pH value of the system, continuing to stir until the materials are uniform, and standing for 8-12 hours.
Example 2
A high-stability 84 disinfectant with a corrosion inhibition effect comprises the following components in percentage by weight:
TABLE 2
| Raw materials | Content (%) | Single component action |
| Sodium hypochlorite solution with mass fraction of 10% | 20 | Sterilizing and disinfecting |
| Ethylenediaminetetraacetic acid methylene sodium salt | 0.1 | Complexing agents |
| Sodium silicate | 2 | Stabilizer |
| Benzotriazole | 8 | Corrosion inhibitor |
| Sodium hydroxide | 1 | Alkali regulator |
| Water (W) | Balance of | Solvent(s) |
The preparation method of the high-stability corrosion-inhibition type 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 2, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle for stirring, then sequentially adding benzotriazole and sodium silicate, stirring for 2 hours at normal temperature and normal pressure until the mixture is uniformly stirred, adding a sodium hypochlorite solution, finally adding sodium hydroxide, continuously stirring until the mixture is uniform, adjusting the pH value of the system, and standing for 8-12 hours.
Example 3
A high-stability 84 disinfectant with a corrosion inhibition effect comprises the following components in percentage by weight:
TABLE 3
| Raw materials | Content (%) | Single component action |
| Sodium hypochlorite solution with mass fraction of 10% | 10 | Sterilizing and disinfecting |
| Ethylenediaminetetraacetic acid methylene sodium salt | 0.15 | Complexing agents |
| Sodium bromide | 2 | Stabilizer |
| Sodium silicate | 1 | Stabilizer |
| Benzotriazole | 5 | Corrosion inhibitor |
| Sodium hydroxide | 1 | Alkali regulator |
| Water (W) | Balance of | Solvent(s) |
The preparation method of the high-stability corrosion-inhibition type 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 3, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle for stirring, then sequentially adding benzotriazole, sodium bromide and sodium silicate, stirring for 1.5 hours at normal temperature and normal pressure until the mixture is uniformly stirred, and then adding a sodium hypochlorite solution. And finally, adding sodium hydroxide, continuously stirring until the mixture is uniform, adjusting the pH value of the system, and standing for 8-12 hours.
Comparative example 1
An 84 disinfectant, which comprises the following components in percentage by weight:
TABLE 4
The preparation method of the 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 4, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle for stirring, then sequentially adding sodium polyphosphate and sodium bromide, stirring for 1 hour at normal temperature and normal pressure until the materials are uniformly stirred, adding a sodium hypochlorite solution, finally adding sodium hydroxide, continuously stirring until the materials are uniformly stirred, adjusting the pH value of the system, and standing for 8-12 hours.
Comparative example 2
An 84 disinfectant, which comprises the following components in percentage by weight:
TABLE 5
| Raw materials | Content (%) | Single component action |
| Sodium hypochlorite solution with mass fraction of 10% | 30 | Sterilizing and disinfecting |
| Sodium bromide | 3 | Stabilizer |
| Ethylenediaminetetraacetic acid methylene sodium salt | 0.2 | Complexing agents |
| Sodium hydroxide | 1.5 | Alkali regulator |
| Water (W) | Balance of | Solvent(s) |
The preparation method of the 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 5, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle, then adding sodium bromide, stirring for 1 hour at normal temperature and normal pressure until the materials are uniformly stirred, adding a sodium hypochlorite solution, finally adding sodium hydroxide, continuously stirring until the materials are uniform, adjusting the pH value of the system, and standing for 8-12 hours.
Comparative example 3
An 84 disinfectant, which comprises the following components in percentage by weight:
TABLE 6
The preparation method of the 84 disinfectant comprises the following steps: adding water into a reaction kettle, then adding sodium bromide, stirring uniformly at normal temperature and normal pressure, then adding a sodium hypochlorite solution, stirring uniformly, finally adding sodium hydroxide, adjusting the pH value of the system, continuing stirring until the system is uniform, and standing for 8-12 hours.
Comparative example 4
An 84 disinfectant, which comprises the following components in percentage by weight:
TABLE 7
| Raw materials | Content (%) | Single component action |
| Sodium hypochlorite solution with mass fraction of 10% | 30 | Sterilizing and disinfecting |
| Ethylenediaminetetraacetic acid methylene sodium salt | 0.5 | Complexing agents |
| Sodium bromide | 3 | Stabilizer |
| Benzotriazole | 15 | Corrosion inhibitor |
| Sodium hydroxide | 1.5 | Alkali regulator |
| Water (W) | Balance of | Solvent(s) |
The preparation method of the high-stability corrosion-inhibition type 84 disinfectant comprises the following steps: weighing the raw materials according to the mass percentage in the table 1, adding water and ethylene diamine tetramethylene sodium phosphate into a reaction kettle for stirring, then sequentially adding benzotriazole and sodium bromide, stirring for 1 hour at normal temperature and normal pressure until the materials are uniformly stirred, adding a sodium hypochlorite solution, finally adding sodium hydroxide, adjusting the pH value of the system, continuing to stir until the materials are uniform, and standing for 8-12 hours.
1. Stability test
According to the 84 disinfectant prepared in the examples 1 to 3 and the comparative examples 1 to 4, the content of available chlorine in the newly prepared fresh disinfectant and the content of available chlorine after the disinfectant is placed at 54 ℃ for 14 days are respectively detected, the rate of decrease of the available chlorine in the storage state for 14 days is calculated, and the stability of the disinfectant is tested. The disinfectant liquids of the examples and the comparative examples are diluted to have the effective chlorine content of 0.5%, the effective chlorine content after 24 hours of dilution is detected, the reduction rate of the effective chlorine in the use state (after dilution) is calculated, and the quick sterilization effect is tested. The available chlorine content was determined according to the method specified in Disinfection Specification (2002 edition) 2.2.1.2.1. The results and physical and chemical index results are shown in Table 8:
TABLE 8 results of physical and chemical indexes of disinfectant
As can be seen from Table 8, the disinfecting solutions obtained in examples 1 to 3 have higher stability in a storage state (before dilution) than those obtained in comparative examples 1 to 4. Compared with comparative examples 1 to 4, the disinfectant obtained in examples 1 to 3 has a slow decrease rate of available chlorine for 14 days at 54 ℃; however, in the use state (after dilution), the reduction rate of available chlorine is accelerated, which shows that the disinfectant quickly exerts the sterilization and disinfection effects, so that the available chlorine is quickly converted into HCl and an active state [ O ], and the disinfectant has a high sterilization effect. The disinfectant can keep good stability in a storage state under the specific mixture ratio of the stabilizer, the corrosion inhibitor and the complexing agent, and can promote the conversion of sodium hypochlorite to hypochlorous acid in a diluted use state so as to convert the sodium hypochlorite into HCl and an active state [ O ], thereby quickly playing the sterilization and disinfection effects. Namely, the disinfectant of the invention has both stability and sterilization effect.
2. Corrosion inhibition test
The disinfectant liquids obtained in examples 1-3 and comparative examples 1-4 are respectively diluted to the effective chlorine content of 0.5%, and the corrosivity of carbon steel, aluminum, copper and stainless steel is measured according to GB/T38498-. The results are shown in Table 9:
TABLE 9 Experimental results on metal corrosivity of disinfectant
As can be seen from Table 9, the disinfectant obtained in the embodiments 1-3 of the present invention has a good corrosion inhibition effect, which indicates that the disinfectant of the present invention can improve the corrosion inhibition effect of the disinfectant under the specific mixture ratio of the stabilizer, the corrosion inhibitor and the complexing agent.
3. Test of Sterilization Effect
The effective chlorine content of the highly stable corrosion-inhibiting type 84 disinfectant prepared in examples 1 to 3 and comparative example 4 was diluted to 0.5%, and a sterilization test was performed according to a method specified in "technical specification for disinfection" (2002 edition), and the sterilization effects of different disinfectant solutions on Streptococcus (Streptococcus), Bacillus subtilis (Bacillus subtilis), Escherichia coli (Escherichia coli), and staphylococcus aureus (staphylococcus aureus) were respectively examined, as shown in table 10:
TABLE 10 disinfectant liquid for killing microorganism
4. Test for Virus inactivation Effect
The highly stable corrosion-inhibiting type 84 disinfectant prepared in example 1, example 2, example 3 and comparative example 4 was diluted to 0.5% in terms of the available chlorine content, and virus inactivation test was carried out according to the method specified in "disinfection specification" (2002 edition), and the inactivation effect was as shown in Table 11:
TABLE 11 inactivation of viruses by disinfectant
As can be seen from tables 10 and 11, the disinfecting solutions obtained in examples 1 to 3 have good sterilizing and disinfecting effects, which indicates that the disinfecting solution of the present invention has not only good stability, but also good rapid sterilizing and disinfecting effects and corrosion inhibiting effects under the specific mixture ratio of the stabilizer, the corrosion inhibitor and the complexing agent.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A high-stability 84 disinfectant with a corrosion inhibition effect is characterized by comprising the following components in parts by weight: 5-50% of sodium hypochlorite solution, 0.5-5% of acid-base regulator, 1-10% of stabilizer, 5-20% of corrosion inhibitor, 0.1-2% of complexing agent and the balance of water.
2. The disinfectant liquid according to claim 1, wherein the amount of the sodium hypochlorite solution is 10-30%, the amount of the pH regulator is 1-2.0%, the amount of the stabilizer is 2-3%, the amount of the corrosion inhibitor is 6-8%, and the amount of the complexing agent is 0.1-0.2%; preferably, the mass fraction of the sodium hypochlorite solution is 10%.
3. The disinfecting solution of claim 1, wherein the pH modifier is one or more of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium bicarbonate, sodium pyrophosphate, and sodium tripolyphosphate; sodium hydroxide is preferred.
4. The disinfecting solution of claim 1, wherein the stabilizer is one or more of disodium ethylenediaminetetraacetate, sodium bromide, sodium silicate, sodium metaphosphate, and 8-hydroxyquinoline.
5. The disinfecting solution of claim 4, wherein the stabilizer is one or both of sodium bromide and sodium silicate.
6. The disinfecting solution of claim 5, wherein the stabilizer is sodium bromide.
7. The disinfectant liquid according to claim 1, wherein the corrosion inhibitor is benzotriazole.
8. The disinfecting solution of claim 1, wherein the complexing agent is sodium ethylene diamine tetra methylene phosphate.
9. The preparation method of the 84 disinfectant liquid as claimed in any one of claims 1 to 8, wherein the complexing agent and water are mixed uniformly, the corrosion inhibitor and the stabilizer are added and stirred for 0.5 to 2 hours at normal temperature and normal pressure until the mixture is uniformly stirred, then the sodium hypochlorite solution is added and stirred continuously, finally the acid-base regulator is added, the pH value of the system is adjusted to 9 to 10, then the mixture is kept stand for 8 to 12 hours, filtered and packaged, and the disinfectant liquid is prepared.
10. The method for preparing the disinfectant as claimed in claim 9, wherein the normal temperature is 20-25 ℃ and the normal pressure is 1 standard atmosphere.
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| CN114766510A (en) * | 2022-05-24 | 2022-07-22 | 山东润兴环保科技有限公司 | Domestic drinking water disinfection powder and preparation method thereof |
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