| abstract |
(57) [Summary] [Object] To provide a disinfectant containing silver, an inorganic acid, an organic stabilizer, and hydrogen peroxide, which can be used in a wide temperature range and can eradicate a wide range of pathogens. [Structure] Distilled water or fully demineralized water adjusted to pH ≦ 1.6 with an inorganic acid is mixed at a temperature of 50 to 60 ° C. with a silver salt or a complex salt thereof in an amount of 100 ± 5 g of silver per liter of water, The acid used for pH adjustment is added to the mixture at 25-30 ° C. in an amount such that the content of this acid is at least equimolar to the amount of silver present, and the resulting solution is treated at 20-25 ° C. with an organic solvent. Mix the stabilizers and homogenize and concentrate the resulting concentrate to 35 Mix with ˜50% by volume hydrogen peroxide in a ratio of 1:99 to 1: 199 at a temperature of at least 20 ° C. The above proportions are selected to give a silver concentration of 0.05 to 0.1% by weight. |