A composition and method for chlorine dioxide production through reaction-diffusion chemistry that facilitates the in situ generation of chlorine dioxide, wherein a dry solid composition of hydroxymethanesulfinic acid monosodium salt dihydrate (abbreviated HMS) and a chlorine dioxide precursor are activated via the addition or absorption of water to produce chlorine dioxide. The dry solid chemical composition comprises dry, safe, transportable reagents that integrate with polymeric materials such as packaging and superabsorbent and stimuli-responsive hydrogel polymers to combine with water to produce chlorine dioxide.

Methods, kits, cartridges, and compounds related to generating chlorine dioxide by exposing ClO.sub.2.sup.? to at least one of an iron porphyrin catalyst or an iron porphyrazine catalyst are described.

The present disclosure provides a formulation for generating chlorine dioxide in situ when immersed in water having a pre-determined volume and a process for the preparation of the formulation. The formulation comprises at least one metal chlorite in an amount ranging from 15 to 25 weight %; at least one acid source in an amount ranging from 15 to 25 weight %; at least one free halogen source in an amount ranging from 10 to 15 weight %; at least one binder in an amount ranging from 12.5 to 17.5 weight %; at least one lubricant in an amount ranging from 0.1 to 1 weight %; and at least one desiccant in an amount ranging from 5 to 10 weight %, wherein the formulation is characterized by being stable at room temperature.

A high-purity chlorine dioxide gas may use hydrogen peroxide as a reducing agent and may use horizontal generator, evaporation crystallizer, dryer and other devices to produce chlorine dioxide gas (product) and sodium sulfate (by-product). Compared to the conventional chlorine dioxide preparation system, the chlorine dioxide reaction and the sodium sulfate crystallization are performed in two processes. These processes are relatively separate and independent, and continuously produce chlorine dioxide gas with high purity and low moisture content while the by-product salt cake is evaporated, crystallized, filtered and dried, thereby producing sodium sulfate, without generating solid and liquid waste.

Peroxides and chlorine dioxide (compounds) can be stabilized for long periods of time (years) by combining the compounds with water that has been infused with dioxytetrahydride gas. Such stabilized materials can be used to infuse soft, solid substrates that can be used as sterile wipes, wound dressings, or the like.

The present invention provides a chlorine dioxide generation unit that can release practically sufficient amount of chlorine dioxide for an extended period of time while being compact. The present invention provides a chlorine dioxide generation unit, characterized in that said unit comprises an agent storage space portion and at least two light source portions, said light source portion is for generating light consisting of wavelengths substantially in the visible region, said agent storage space portion stores an agent comprising solid chlorite, and said agent storage space portion comprises one or more openings so that air could move in and out of said agent storage space portion, wherein chlorine dioxide gas is generated by irradiating said light generated from said light source portion onto said agent present inside said agent storage space portion.

The present disclosure provides a medicinal agent that is useful for disinfection of microorganisms and the like. The present disclosure provides a chlorine peroxide radical. The chlorine peroxide radical is preferably provided as a liquid. Also provided are: a method for producing the chlorine peroxide radical; method a for killing microorganisms using the chlorine peroxide radical; a microorganism-killing agent; a method for measuring bactericidal activity; a device for measuring the chlorine peroxide radical; and a kit for preparing the chlorine peroxide radical. This method for producing the chlorine peroxide radical includes a step for bringing a chlorine oxide into contact with an excess of hydrogen ions.

The present disclosure provides a medicinal agent that is useful for disinfection of microorganisms and the like. The present disclosure provides a chlorine peroxide radical. The chlorine peroxide radical is preferably provided as a liquid. Also provided are: a method for producing the chlorine peroxide radical; method a for killing microorganisms using the chlorine peroxide radical; a microorganism-killing agent; a method for measuring bactericidal activity; a device for measuring the chlorine peroxide radical; and a kit for preparing the chlorine peroxide radical. This method for producing the chlorine peroxide radical includes a step for bringing a chlorine oxide into contact with an excess of hydrogen ions.

Methods of manufacturing a light-activated powder are provided which provide solid-state generation and release of chlorine dioxide without detectable amounts of any toxic by-products such as chlorine gas, chlorites, or chlorates. The powder need not be exposed to moisture, relative humidity, or an acid before or during exposure of the powder to visible light to generate the gas. The powder can also be prepared under conditions that minimize or prevent decomposition or oxidation of sodium chlorite or premature light activation of the powder during the manufacturing process to maximize its activity.

The present disclosure generally relates to methods of treating process water using a reactor for generating chlorine dioxide onsite. The onsite generation system may include double ensured precursor feeding, effective reactor, automated control/alarm, and effective product delivery. The reactor may include a mixing device, a first feed line connected to the mixing device, and a second feed line connected to the mixing device. The reactor may include a proximal portion in fluid communication with the mixing device and a distal portion in fluid communication with a motive water line. The mixing device, the reactor, a portion of the first feed line, and a portion of the second feed line may be positioned within the motive water line.