The invention describes to compositions useful to stabilize peracetic acid and hydrogen peroxide compositions with polymeric sulfonic acid resins and methods of their use.

To provide an apparatus that can gasify a sterilizer containing hydrogen peroxide to produce a gas having a high hydrogen peroxide concentration. The apparatus can stably produce a gas of the sterilizer containing hydrogen peroxide for a long time. A heating surface of a heating body that gasifies the sterilizer is made of chromium. Alternatively, the heating surface of the heating body that gasifies the sterilizer may be made of polytetrafluoroethylene or perfluoroalkoxy fluorocarbon resin, or a chromium plating impregnated with chromium polytetrafluoroethylene or perfluoroalkoxy fluorocarbon resin.

Aqueous solutions of hydrogen peroxide are stabilized by at least one polymeric stabilizer selected from phosphino polycarboxylic acids, poly(acrylic acid)-acrylamidoalkylpropane sulfonic acid co-polymers and poly(acrylic acid)-acrylamidoalkylpropane sulfonic acid-sulfonated styrene terpolymers. The polymer-stabilized hydrogen peroxide solutions have applications in aseptic packaging, electronics manufacture, and pulp and paper bleaching.

Aqueous solutions of hydrogen peroxide are stabilized by at least one polymeric stabilizer selected from phosphino polycarboxylic acids, poly(acrylic acid)-acrylamidoalkylpropane sulfonic acid co-polymers and poly(acrylic acid)-acrylamidoalkylpropane sulfonic acid-sulfonated styrene terpolymers. The polymer-stabilized hydrogen peroxide solutions have applications in aseptic packaging, electronics manufacture, and pulp and paper bleaching.

A description is given of compositions comprising a) one or more substances selected from the group consisting of hydrogen peroxide and hydrogen peroxide donor substances, b) water, c) one or more polymers having thickening properties and d) one or more substances selected from the group consisting of hydroxypyridones and salts thereof. The compositions are notable more particularly for their advantageous shelf lives.

A description is given of compositions comprising a) one or more substances selected from the group consisting of hydrogen peroxide and hydrogen peroxide donor substances, b) water, c) one or more polymers having thickening properties and d) one or more substances selected from the group consisting of hydroxypyridones and salts thereof. The compositions are notable more particularly for their advantageous shelf lives.

Stabilized peroxide-containing compositions stabilized with urea and urea/chelator stabilizer blends are provided. The compositions are particularly suitable for, but not limited to, cleaning applications on surfaces within food and beverage industries which may require the use of materials that are acceptable for incidental food/food products/feed contact. Further, the stabilized compositions are particularly suitable for applications requiring materials that are generally regarded as safe (GRAS) or for applications where non-GRAS materials must be minimized. Methods of stabilizing peroxide-containing compositions and methods of using the compositions are also provided.

Systems for quenching peroxycarboxylic acid and peroxide chemistry runaway reactions provide safe and efficacious systems to prevent uncontrolled runaway reactions, such as decomposition reactions, of peroxycarboxylic acid and peroxide chemistry compositions are disclosed. The systems provide prompt detection and dispensing of a stabilizer into a tank or other storage vessel containing a peroxide composition, peroxycarboxylic acid composition or a peroxycarboxylic acid-forming composition to stop a runaway reaction. Methods for quenching peroxide and peroxycarboxylic acid runaway reactions are also disclosed.

Systems for quenching peroxycarboxylic acid and peroxide chemistry runaway reactions provide safe and efficacious systems to prevent uncontrolled runaway reactions, such as decomposition reactions, of peroxycarboxylic acid and peroxide chemistry compositions are disclosed. The systems provide prompt detection and dispensing of a stabilizer into a tank or other storage vessel containing a peroxide composition, peroxycarboxylic acid composition or a peroxycarboxylic acid-forming composition to stop a runaway reaction. Methods for quenching peroxide and peroxycarboxylic acid runaway reactions are also disclosed.

Methods for stabilizing one or more peroxide compounds in solution comprising adding to the solution an effective amount of at least one compound selected from the group comprising (i) cyclic carbonates; (ii) poly-phosphonic acid chelating agents and salts thereof, and alkaline pH adjusting agents with a pKb value of up to 3.0, wherein the w/w ratio of the poly-phosphonic acid chelating agent or salt thereof to alkali or alkaline earth metal hydroxide is from about 1:1 to about 50:1; and (iii) mixtures thereof. Also disclosed are solutions comprising the above compounds, uses of the above compounds to stabilize peroxide compounds in solutions, and compounds recited above for use as novel stabilizers.