Chemical & Biological Dynamics

"applications in which soil residues are frequent." "One sanitizer was an acidified solution of dilute sodium chlorite at pH 2.7; the other sanitizer was dilute chlorine dioxide (about 15 ppm) in tap water. Stainless steel types 304 and 316 corroded rapidly when exposed to the acidified chlorite solution. Chlorine dioxide near neutral pH 7.2 was noncorrosive to both type 304 and 316 stainless steels at a concentration of 100 ppm during 10 d of continuous exposure. This concentration is well above the typical use Concentration of 15 ppm; typical use time span is 15 min." "chlorine dioxide is of equal bactericidal activ- ity to sodium hypochlorite at one-seventh the concentration of hypochlorite, when used for sanitation of poultry processing water"

"composition of matter comprising a solid form of chlorine dioxide complexed with a cyclodextrin. The concentration of chlorine dioxide in said solid form is greater than approximately 5.8 percent by weight"

A process for producing aqueous chlorous acid solution in which chlorous acid, which is safe for the human body, is easy to handle, and less generates chlorine dioxide, is yielded and used as a disinfectant for a pretreatment in food processing. To an aqueous sodium chlorate solution is added sulfuric acid or an aqueous solution thereof in such an amount and concentration that the pH of the aqueous solution can be kept at 2.3-3.4 to thereby react them and generate chloric acid. Subsequently, hydrogen peroxide is added to the chloric acid in an amount which is equal to or larger than the amount necessary for a reduction reaction to thereby yield chlorous acid. Any one of inorganic acids, inorganic acid salts, organic acids, and organic acid salts, or two or more thereof, or a combination or these is added to the aqueous solution containing chlorous acid yielded, whereby the chlorous and acid can be present for long and the pH of the aqueous solution is regulated to regulated to 3.2-7.0. Thus, high bactericidal power is imparted thereto.

" The present invention is usable as a microbe disinfectant that is safe to human body and easy to handle as a microbe disinfectant for pretreatment in food processing and produces chlorous acid that generates little chlorine dioxide. The microbe disinfectant comprising a chlorous acid aqueous solution of the present invention can be utilized as a sterilizing agent, food additive, antiseptic, quasi-drug, medicine, etc." "Further, when the present invention is used as a microbe disinfectant, a microbe disinfecting effect was unexpectedly found to be enhanced by making the disinfectant acidic when applied to gram-negative microbes and approximately neutral when applied to gram-positive microbes. This is thus provided as the present invention. Further, it was found that the present invention additionally has an effect on various microbes to which an effect has not been shown conventionally." "This contributes to a delay in the progression of chlorous acid (HCIO2) to chlorine dioxide (CIO2) , which enables the manufacture of an aqueous solution comprising chlorous acid (HCIO2) that sustains chlorous acid (HCIO2) for an extended time and generates a reduced amount of chlorine dioxide (CIO2) ·" "it was surprisingly revealed that a strong acidity level is not necessarily important in microbe disinfection."

" The present invention is usable as a microbe disinfectant that is safe to human body and easy to handle as a microbe disinfectant for pretreatment in food processing and produces chlorous acid that generates little chlorine dioxide. The microbe disinfectant comprising a chlorous acid aqueous solution of the present invention can be utilized as a sterilizing agent, food additive, antiseptic, quasi-drug, medicine, etc." "Further, when the present invention is used as a microbe disinfectant, a microbe disinfecting effect was unexpectedly found to be enhanced by making the disinfectant acidic when applied to gram-negative microbes and approximately neutral when applied to gram-positive microbes. This is thus provided as the present invention. Further, it was found that the present invention additionally has an effect on various microbes to which an effect has not been shown conventionally." "This contributes to a delay in the progression of chlorous acid (HCIO2) to chlorine dioxide (CIO2) , which enables the manufacture of an aqueous solution comprising chlorous acid (HCIO2) that sustains chlorous acid (HCIO2) for an extended time and generates a reduced amount of chlorine dioxide (CIO2) ·" "it was surprisingly revealed that a strong acidity level is not necessarily important in microbe disinfection."

The present invention provides a safe virus disinfectant. Specifically, the present invention provides a virus disinfectant comprising a chlorous acid aqueous solution for inactivating viruses, such as at least one species of viruses selected from the group consisting of polioviruses, influenza viruses, herpesviruses, noroviruses, and feline caliciviruses. The virus disinfectant comprising a chlorous acid aqueous solution of the present invention can be utilized as a food additive, antiseptic, quasi-drug, medicine, or the like. Although there was an issue of sodium hypochlorite not being safe to a human body (high cytotoxicity), this has been resolved. Chlorous acid, which is safe for a human body and easy to handle and generates little chlorine dioxide, is produced as a virus disinfectant and a sterilizing agent for pretreatment in food processing. Chlorous acid is used as a virus disinfectant or a sterilizing agent.

The present invention provides a safe virus disinfectant. Specifically, the present invention provides a virus disinfectant comprising a chlorous acid aqueous solution for inactivating viruses, such as at least one species of viruses selected from the group consisting of polioviruses, influenza viruses, herpesviruses, noroviruses, and feline caliciviruses. The virus disinfectant comprising a ***chlorous acid aqueous solution of the present invention can be utilized as a food additive, antiseptic, quasi-drug, medicine, or the like. Although there was an issue of sodium hypochlorite not being safe to a human body (high cytotoxicity), this has been resolved. Chlorous acid, which is safe for a human body and easy to handle and generates little chlorine dioxide, is produced as a virus disinfectant and a sterilizing agent for pretreatment in food processing. Chlorous acid is used as a virus disinfectant or a sterilizing agent.

"monitoring of FAC is critical to validate disinfection efficacy. In this study we found that chlorite-based sanitizers acquired a pink colour upon contact with BSA or broiler carcasses. This pink colour interfered with FAC monitoring by methods that measure oxidized N,N-diethyl-p-phenylenediamine absorbance between 513–550 nm. Alternatively, FAC levels of chlorite-based sanitizers could be monitored using the absorbance of 3,3′,5,5′-tetramethylbenzidine at 650 nm, which does not overlap with the acquired pink colour. These data provide valuable information for safety management of disinfection processes that use chlorite-based sanitizers."

The present study identified the active radical species in acidic sodium chlorite and investigated the feasibility of quantifying these species with the diethylphenylenediamine (DPD) method. Electron spin resonance (ESR) spectroscopy was used to identify ...

"Significance and Impact of the Study: For practical applications of chlorine in food processing, monitoring of FAC is critical to validate disinfection efficacy. In this study we found that chlorite-based sanitizers acquired a pink colour upon contact with BSA or broiler carcasses. This pink colour interfered with FAC monitoring by methods that measure oxidized N,N-diethyl-p-phenylenediamine absorbance between 513–550 nm. Alternatively, FAC levels of chlorite-based sanitizers could be monitored using the absorbance of 3,30 ,5,50 -tetramethylbenzidine at 650 nm, which does not overlap with the acquired pink colour. These data provide valuable information for safety management of disinfection processes that use chlorite-based sanitizers."

"can be utilized as a food additive, antiseptic, quasi-drug, medicine, or the like. Although there was an issue of sodium hypochlorite not being safe to a human body (high cytotoxicity), this has been resolved. Chlorous acid, which is safe for a human body and easy to handle and generates little chlorine dioxide, is produced as a virus disinfectant and a sterilizing agent"

"utilized as a food additive, antiseptic, quasi-drug, medicine, or the like. Although there was an issue of sodium hypochlorite not being safe to a human body (high cytotoxicity), this has been resolved. Chlorous acid, which is safe for a human body and easy to handle and generates little chlorine dioxide, is produced as a virus disinfectant and a sterilizing agent" "use sodium dihydrogen phosphate instead of potassium dihydrogen phosphate, and sodium hydroxide instead of potassium hydroxide. This agent can reduce the decrease of chlorous acid due to contact with an organic matter under acidic conditions. However, the cytotoxic effect is retained. Further, the present invention has demonstrated that a virus disinfection effect is retained. In addition, very little chlorine gas is generated. Further, the agent also has a feature of inhibiting amplification of odor from mixing chlorine and an organic matter."

"we have succeeded in liquefying Chlorous Acid for the first time worldwide and filed the international patents for the technology. And, now, the Chlorous Acid products are a commercially available. This enables us to develop new far-sighted Oxychlorine Compounds products such as Sodium Chlorite derived products in particular and propose the new ways to use them as well."

"problem of providing a novel technique for producing aqueous chlorous acid. The present invention provides a method for producing chlorous acid, which comprises a step of adding chlorine dioxide (ClO 2 ) to one or more components independently selected from an inorganic acid, an inorganic acid salt, an organic acid and an organic acid salt or a combination of two or more of the aforementioned components. In the method, chlorine dioxide (ClO 2 ) is provided in the form of a gas. The method also comprises, subsequent to the above-mentioned addition step, a step of further adding one or more components independently selected from an inorganic acid, an inorganic acid salt, an organic acid and an organic acid salt or a combination of two or more of the aforementioned components.

" improved long term stability by the proper choice of pH and through the careful choice of other product formula ingredients.

"extending storage period and usable period of a deodorant as a product by preventing generation of chlorine dioxide gas in a sealed container, and also to provide a gel-type chlorine dioxide deodorant having a storage period extended by the method. SOLUTION: Generation of chlorine dioxide gas is prevented by using gellan gum as a gelling agent and by making the gel-type chlorine dioxide deodorant white. By doing so, shelf life of the deodorant as a product is extended, and a usable period of the deodorant is also extended."

"The validity period reaches more than one year. The product uses solid stable chlorine dioxide, an activating agent (solid active chlorine preparation), a stabilizing agent(nitrogen containing compound), a synergistic agent (nonionic surface active agent) and a cage-shaped molecule inclusion complex as main raw materials which are jointly dissolved in water (if necessary, the raw materials can be respectively dissolved and are mixed), the pH value is regulated, the filtration is carried out if necessary, and the product is obtained by filling and package. The chlorine dioxide concentration and the chlorine dioxide stability of the product can be regulated by raw material selection, use amount increase and decrease and the change of a manufacture process."

"comprising an aqueous solution of chlorine dioxide, a chlorate salt, a chlorite salt, a stabilizer containing boron and molybdenum, and a surfactant, and a method for preparing the same.

A composition for a broad-spectrum antiviral agent with excellent preservation stability, which comprises a pure chlorine dioxide solution comprising a chlorine dioxide gas dissolved therein, a chlorite, and a pH adjuster.

A composition for stabilizing chlorine dioxide maintains a chlorine dioxide concentration nearly constant in the agent containing chlorine dioxide dissolved therein even when chlorine dioxide is continuously released as gas from agent, and includes a chlorite and a pH adjuster. The pH adjuster is an acid or a salt thereof having a buffering property whose pH is 2.5 to 6.8 as a 5% aqueous solution at 25° C.

"PeroxyMAX, one of the chemistries covered under the patents is the safest, most effective solution for the treatment of fresh and produced water for hydraulic fracturing. It enables separations in recovered fluids, floating oil and dropping solids and controls bacteria in a more efficient manner than more dangerous and corrosive alternatives on the market like chlorine dioxide."

A fermentation process for the production of ethanol from natural sources, such as corn, comprising introducing a fermentable sugar, an inoculant, and a stabilized chlorine dioxide into a fermentation system is disclosed. The stabilized chlorine dioxide is added preventatively to the fermentation system, at concentrations in the fermentation system of acetic acid no greater than 0.30% (weight/volume) and lactic acid no greater than 0.60% (weight/volume). The stabilized chlorine dioxide is added in an amount effective to substantially prevent growth of bacteria.

DuPont Industrial Biosciences announced April 3 that it has been granted U.S. Patent 9,926,576 entitled “Prevention of Bacterial Growth in Fermentation Processes.” This patent covers the active ingredient in DuPont FERMASURE.

****!!!!*** "When applied correctly, inactivates bacteria without harming yeast" "Proven safe (GRAS status) and approved for use in production of potable alcohol and fuel ethanol production with coproducts intended for use in animal feed."

A stabilized aqueous solution of chlorine oxides containing boron, the solution formed by adding to 1000 parts of water, 4-15 parts by weight of sodium or potassium perborate, and 8-15 parts by weight of sodium peroxide or an equivalent amount of potassium peroxide, hydrogen peroxide, potassium percarbonate or sodium percarbonate, the solution having therapeutic value.

The present invention provides a new method for the in situ generation of chlorine dioxide from a solution of sodium chlorite and carbon dioxide. The present invention produces effective levels of chlorine dioxide without having to resort to the use of hydrochloric acid, sulfuric acid, hydrogen peroxide, chlorine, sulfur dioxide, or methanol. By eliminating the use of toxic and/or hazardous compounds, the present invention provides a safer means for generating and using chlorine dioxide in a wider variety of applications than previously possible. For instance, the present invention can easily be adapted for the treatment of combustion exhaust gases, flue gases, cooling towers, chilled water systems, contaminated groundwater, and agricultural produce or products.

{Containers and container treatments that minimize loss of ClO2 through countainer walls. Plastic and glass materials compatibility.} The present invention is directed to both physical and chemical means for maintaining continuous high levels of chlorine dioxide in aqueous solutions for extended periods, with minimum loss through degradation in the solution and dissipation through the walls of the containing vessel within which the solution is stored. The ClO 2 may be maintained even in the absence of very high levels of chlorite, from which supplemental, offsetting levels of ClO 2 may be generated. The present invention relates to the discovery that certain types of plastic and glass containers have the ability to maintain relatively constant levels of ClO 2 in their contained solutions over extended periods, particularly in aqueous compositions comprising chlorite/ClO 2 ratios sufficient for a stabilizing complex of the two, presumably Cl 2 0 4 — , to suppress the ClO 2 loss. Of particular value is certain high-density polyethylene terephthalate (PETE) plastic bottling and plastic containers which have been initially exposed to a fluorinating environment. Specifically, in the latter regard, it has been discovered that certain plastic containers which ordinarily are incapable of maintaining aqueous ClO 2 levels can be treated with fluorine gas to transform their surfaces so as to effectively suppress ClO 2 diffusion therethrough.