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Stable peroxyacetic acid disinfectant

A peracetic acid disinfectant and a stable technology, applied in the directions of disinfectants, biocides, animal repellents, etc., can solve the problems of affecting the application of peracetic acid disinfectants, reducing disinfectant stabilizers, difficult to control stability, and the like, Achieve excellent hydrophilicity, obvious stabilization effect, and wide compatibility effect

Active Publication Date: 2013-02-13
GUANGZHOU KONCEN BIOSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The peracetic acid stabilizers or other additives added in the prior art are all single-function. In order to realize the stability of peracetic acid disinfectant, it is often necessary to add some surfactants or foaming agents etc. as wetting agents, but these surface The introduction of active agents or foaming agents usually reduces the stabilizer of disinfectants to a certain extent (GB1561680), making the stability of the product difficult to control
Simultaneously, the introduction of small molecules such as 8-hydroxyquinoline (CN200310113429.3) and ethyl acetate (CN200510042902.2) as stabilizers can increase the stability of peracetic acid to a certain extent, but like 8- Hydroxyquinoline has been proved to be a carcinogen, and the use of 8-hydroxyquinoline as a stabilizer for disinfectants has been banned in some European countries, and the introduction of small molecule organic solvents such as ethyl acetate has affected the peroxide to a certain extent. Application of acetic acid disinfectant in certain fields such as disinfection of medical equipment and food packaging materials

Method used

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  • Stable peroxyacetic acid disinfectant
  • Stable peroxyacetic acid disinfectant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The formula of peracetic acid disinfectant is as follows: hydrogen peroxide: 26% glacial acetic acid: 15% sulfuric acid: 2% sodium lauryl sulfate: 0.05% hydrolyzed maleic anhydride copolymer and ethylenediaminetetramethylphosphoric acid compound (1:1): The balance of 0.05% is water.

[0020] Hydrolyzed maleic anhydride copolymer is prepared in the following manner among the embodiment 1: take by weighing 4.96g maleic anhydride and 4.36g vinyl acetate, add in the mixed solvent three-necked flask that is equipped with to 40mL butyl acetate and n-heptane, After the maleic anhydride was dissolved, 0.15 g of azobisisobutyrocyanide was added, and after it was completely dissolved, it was placed in a water bath at 80°C for 6 hours of reaction. After the reaction was completed, it was taken out by suction and dried for later use. Weigh 2 g of dried maleic anhydride-vinyl acetate copolymer, hydrolyze it with 1 mol / L sodium hydroxide aqueous solution at 40°C, precipitate with me...

Embodiment 2

[0030] The disinfectant formula is as follows: hydrogen peroxide: 26% glacial acetic acid: 15% sulfuric acid: 2% sodium lauryl sulfate: 0.05% hydrolyzed maleic anhydride copolymer and ethylenediaminetetramethylphosphoric acid compound (1: 3): The 0.05% balance is water, and the preparation process is the same as in Example 1. The contents of peracetic acid and hydrogen peroxide are listed in Table 2 after 30 days of equilibrium.

Embodiment 3

[0032] Hydrogen peroxide: 26% Glacial acetic acid: 15% Sulfuric acid: 2% Sodium lauryl sulfate: 0.05% Hydrolyzed maleic anhydride copolymer and ethylenediaminetetramethylphosphoric acid compound (2:1): 0.05% The balance is water, and the preparation process is the same as in Example 1. The contents of peracetic acid and hydrogen peroxide are listed in Table 2 after 30 days of equilibrium.

[0033] From the results of Example 1 to Example 3 and Table 2, it can be seen that when the ratio of hydrolyzed maleic anhydride copolymer and ethylenediaminetetramethylphosphoric acid was changed from 1: 3 to 2: 1, hydrogen peroxide and peroxygen The content of acetic acid experienced a process of increasing first and then decreasing, and reached the highest when the ratio of the two was 1:1, which were 15% and 12%, respectively.

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Abstract

The invention relates to a method for preparing a stable peroxyacetic acid disinfectant. The disinfectant consists of a composite stabilizer, a surfactant and water, wherein the composite stabilizer consists of hydrogen peroxide, peroxyacetic acid, acetic acid, and organic or inorganic phosphoric acid and hydrolytic maleic anhydride copolymer. The disinfectant has the characteristics of high composition stability, good disinfection and sterilization effects, low corrosion, no residue or toxic effect, simple production process, safe operation, low cost, and the like. The disinfectant is a broad-spectrum disinfectant, and can meet special requirements of industries such as medical apparatus and instruments and food packaging.

Description

technical field [0001] The invention relates to a preparation method of a stable peracetic acid disinfectant. The disinfectant is a stable peracetic acid disinfectant compounded with hydrolyzed polymaleic acid or maleic anhydride copolymer and phosphide. technical background [0002] Peracetic acid is a high-efficiency disinfectant, which has the advantages of fast killing speed, high efficiency and no decomposition residue. However, due to the poor stability of peracetic acid, how to maintain the stability of peracetic acid in the system has been a research focus of peracetic acid disinfectants since the 1970s. A method of solving is to use high-concentration hydrogen peroxide to react with glacial acetic acid (such as US4297298, US4743447 and US5349083), so that the system after the reaction contains excess hydrogen peroxide to stabilize peracetic acid. Although adopting this method can solve the stability problem of peracetic acid to a certain extent, due to the strong ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/16A01N25/22A01P1/00
Inventor 陈校园杨正根许春生张旭锋
Owner GUANGZHOU KONCEN BIOSCI
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