An aldehyde-free sterilant and disinfectant based on a peroxide source in powder or kit form for mixing and/or diluting

摘要

A formulation is provided as a concentrate for producing a biocidally active solution. The formulation comprises a water soluble oxidant generator-peroxide source (eg hydrogen peroxide, sodium perborate or potassium peroxy monosulphate) and is in the form of:BR either a single-pack powder that is diluted and dissolved to produce the biocidally active solutionBR or a twin-pack liquid or liquid-and-solid formulation which (when the components are mixed or are diluted, mixed and dissolved) provide the biocidally active solution. The formulation may optionally comprise a buffer (eg citric acid), an oxidant stable surfactant, a metal sequesterant (eg ethylenediamine tetramethylphosphonate), a peroxide reactant/trigger, a corrosion inhibitor, a colour, a perfume or an indicator which improves effective hygiene performance. Tetraacetyl ethylene diamine (TAED) may be included as a potentiating ingredient which, under slightly alkali conditions of a buffered solution, is activated to produce a very effective low temperature biocide, by reacting with peroxide anions to produce peracetic anions. This combination of hydrogen peroxide, peracetic acid and peracetic anions is synergistic and produces a rapidly biocidal and sporicidal solution with a very broad spectrum of activity. It may be used as a sterilant/sanitiser in medical, veterinary and food establishments (eg sterilising medical and dental instruments).