NOVELTY - A water-soluble deodorizing and sanitizing composition (C1) comprises a) peroximonosulfate-compound; b) a surfactant selected from anionic, cationic, and/or non-ionic surfactants; an alkalinizing agent selected from water-soluble salts or bases (0-20 wt.% in relation to the weight of (a+b)); a silicoaluminate in zeolitic form (0-50 wt.% in relation to the weight of (a+b)); and an oxidimetric coloring agent.    USE - For deodorizing and sanitizing materials, articles, surfaces and rooms such as solid and liquid matrices of various natures such as excreta, solid urban waste, rubbish dump or waste tip percolate, industrial processing waters in general, particularly those treating animal residues deriving from the processing of animal meat, tannery water, industrial effluent water, as well as the containers of the solid or liquid matrices; domestic type materials, articles, surfaces and rooms such as organic waste, pet litters, floors and surfaces in general, particularly wallpaper and wall coverings, upholstery and household electrical appliances such as refrigerators, freezers, cooking plates, ovens, washing machines and dish-washers; means of transport of solid waste, mechanical bin-washing devices, refuse bins and containers of urban and domestic waste (claimed). Also useful for neutralising bad smelling substances and toxic gases and for sanitization.    ADVANTAGE - The monopersulfate compounds neutralize bad smelling liquid and solid matrices quickly and without the co-presence of fragrances or other additional substances. They only act alone or in synergistic combination with surfactants and with silicoaluminates in zeolitic form. This selectivity derives from the synergistic activity of surfactants and oxidant compounds which allows to use low concentrations of the mixture. The formulations are easy to prepare, possess low toxicity, are practical to use, even in the domestic context and have a broad spectrum of action. The compositions are very simple to use and can be applied as is in the solid phase. The components of the mixtures are very low toxicity, are non- irritant and do not generate allergies. The compositions are simple, very easy to use without any particular caution, not toxic for the environment because their components are transformed in salts usually present in the soils and waters. Also they don't generate toxic or hazardous products reacting with other compounds, are safe for humans and animals and totally eco-compatible.    DETAILED DESCRIPTION - A water-soluble deodorizing and sanitizing composition (C1) comprises a) peroximonosulfate-compound; b) a surfactant selected from anionic, cationic, and/or non-ionic surfactants; an alkalinizing agent selected from water-soluble salts or bases (0-20 wt.% in relation to the weight of (a+b)); a silicoaluminate in zeolitic form (0-50 wt.% in relation to the weight of (a+b)); an oxidimetric coloring agent where when first two components are placed in an aqueous medium containing a mixture of aerobic and anaerobic bacteria, they produce a selective removal of aerobic ones and a decrease in the biochemical oxygen demand (BOD5) value of the mixture during a period of 3-5 days and a subsequent increase of the value during a period of the following 6-8 days. INDEPENDENT CLAIMS are included for the following:    (1) deodorizing and sanitizing kit comprising in defined amounts, packaged singly or in mixtures, possibly dilutable in water, the composition (C1);    (2) preparation of the composition in a liquid phase, involving blending the individual components; and adding them to a given amount of water to obtain a final solution at pH of 1.5-8.5;    (3) process for deodorizing and sanitizing materials, articles, surfaces and/or rooms involving preparing mixture by blending the components of the composition; blending the resulting mixture with the material to be treated; or alternatively preparing an aqueous solution with the mixture and applying it to the material or article or on the surface or room to be treated.