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Stabilized peroxyacid solution

A technology of peroxyacid and stabilizer, applied in the field of peroxyacid aqueous solution, can solve the problems of introducing impurities and the like

Active Publication Date: 2022-07-08
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, as a practical matter, it is virtually impossible to ensure the absence of such impurities
Furthermore, even if impurities are avoided during manufacture, there is still the potential for impurities to be introduced during any subsequent packaging or shipping of the solution

Method used

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  • Stabilized peroxyacid solution
  • Stabilized peroxyacid solution
  • Stabilized peroxyacid solution

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Embodiment

[0069] Equilibrium peroxyacetic acid was prepared by combining 58.5 parts by weight of 50% by weight hydrogen peroxide, 28.4 parts by weight of acetic acid, 12.1 parts by weight of deionized water and 0.9 parts by weight of concentrated sulfuric acid (calculated initial active oxygen content: 13.77 % by weight), divide the mixture into five equal samples, add stabilizer to the different samples in the amounts given in Table 1, and allow the mixture to stand at room temperature. HEDP is 1-hydroxyethylene-1,1-diphosphonic acid. A4161 is an Acumer from Rohm and Haas TM 4161: Phosphinopolycarboxylic acid in acid form with a pH of 3.0-3.5 and a molecular weight determined by GPC of 3300-3900 g / mol. The stability of equilibrated peracetic acid was assessed after 1 month by measuring the oxygen released by the decomposition of a 100 ml sample kept at 60°C within 15 minutes after an equilibration time of 45 minutes by using a burette volume of. If the volume of oxygen released in ...

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Abstract

By polymers selected from the group consisting of phosphinopolycarboxylic acids, poly(acrylic acid)-acrylamidoalkylpropanesulfonic acid copolymers or poly(acrylic acid)-acrylamidoalkylpropanesulfonic acid-sulfonated styrene terpolymers Stabilizers stabilize aqueous solutions of peroxyacids. The polymer-stabilized peroxyacid solution can be used in aseptic sterilization and disinfection of surfaces.

Description

[0001] Cross-reference to related applications [0002] This application claims the benefit of US Provisional Application No. 62 / 713,801, filed August 2, 2018, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a stabilized aqueous peroxyacid solution, a method for preparing the solution and the use of the solution for aseptically sterilizing or disinfecting surfaces. The present invention particularly relates to stabilized aliphatic peroxyacid solutions, especially peracetic acid solutions. Background technique [0004] Aqueous solutions of peroxyacids have many applications in industry, including especially as bleaching agents, reagents in chemical synthesis, and especially as disinfectants for domestic, industrial and environmental applications. Many of these applications take place at locations remote from the site of peroxyacid production, so the peroxyacid is advantageously stable at least durin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/16A01N25/22A01P1/00
CPCA01N37/16A01N25/22A01N25/02
Inventor G·梅伦克维兹
Owner EVONIK DEGUSSA GMBH
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