Two components disinfecting composition containing peracetic acid and chelating agent

• Main Authors: Jäger, Stefan, Decker, Michael, Geret, Laurence
• Format: Patent
• Language: English
• Published: 07.04.2020
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

The invention relates to a two component disinfectant composition comprising: (A) a peracetic acid-generating component comprising acetic acid, hydrogen peroxide and an organic phosphonic acid; and (B) a stabilizer component comprising an alkaline agent and a chelating agent, wherein the chelating agent is selected from the group consisting of N,N-bis(carboxymethyl)-L-glutamic acid, methylglycine diacetic acid, nitrilotriacetic acid, and alkali metal salts thereof, and a mixture of two or more thereof and to the aqueous disinfectant solution obtainable by mixing and diluting components (A) and (B) in water. The invention further relates to a method of disinfecting surface and instruments, particularly flexible endoscopes, using said aqueous disinfectant solution.