Disinfectant mixture of a donor of freely available chlorine (e.g. hypochlorite) and a buffering agent or acid, optionally in the form of an aqueous solution

摘要

A disinfectant chemical system consists of a mixture of: SL LI(i) a donor of freely available chlorine and LI(ii) one or more buffering agents or acids /SL and may be dissolved in water to form an aqueous solution. The donor is preferably calcium hypochlorite [Ca(OCl)2] or sodium hypochlorite [NaOCl]. The acid is preferably selected from oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, citric acid, hydrochloric acid, sulphuric acid and phosphoric acid. Components (i) and (ii) can be used in various proportions to produce predictable and controllable levels of active hypochlorous acid at pH of 7.0 The system can be produced and used as either a dilute or concentrated aqueous solution or can be added, in the form of a blended powder, particulate, granule or tablet, to all forms of water to create a safe, stable, non-toxic, fast-acting and powerful oxidising aqueous solution.