chlorine dioxide photochemistry: Topics by Science.gov

Chemical & Biological Dynamics
Acidified Sodium Chlorite creates Chlorous Acid, used for Red Meat, Poultry Meat, Seafood, Raw Agric Commodities ~FSIS, USDA
{Also specifically refers to Sanova sanitizing product for food uses} "Sodium chlorite solution is made with sodium chloride crystals or flakes and water, and available at various concentrations, such as SANOVA® Base (25%) and Sanova® Antimicrobial Food Additive Base (25%) containing 20-50% by weight of sodium chlorite (NaClO2). While the chlorite ion (ClO2
–) is stable in aqueous solution, under acidic conditions— the acidifier can be any one of food-grade acids, chlorite forms chlorous acid (HClO2). Chlorous acid is unstable and dissociates back to chlorite ion. Other compounds like chlorine dioxide (ClO2) and chlorate also generated. Ultimately, chlorous acid degrades to chloride (Cl–). "
Measurement of Chlorine Dioxide and Related Products
1977
Lower Detection Limits Found for Chlorine Dioxide Contaminants on JSTOR
A review on the electrochemical production of chlorine dioxide from chlorates and hydrogen peroxide | Scinapse
Abstract Chlorine dioxide is one of the most interesting oxidants because it combines a strong capacity of o | Mayra Kerolly Sales Monteiro, Mayara Maria Sales M | Current Opinion in Electrochemistry |
Effect of pH on the Inorganic Species Involved in a Chlorine Dioxide Reaction System
"Analyses of the inorganic species produced during the reaction at pH 8 revealed that 2 mol of chlorite are liberated for every 1 mol of oxidized nonphenolic lignin model compound formed, consistent with two consecutive one-electron-transfer processes. In contrast, the low-pH reactions produced mostly ring oxidation products and chlorinated organic material, accompanied by increased levels of hypochlorous acid. The transient hypochlorous acid rapidly reacted with chlorite to generate chloride ions, with a maximum chloride formation at pH 4. Chlorate formation was shown to increase with increasing reaction pH. These results are in contrast to those previously reported for reactions with wood pulps and are explained on the basis of the slow reaction kinetics of nonphenolic lignin moieties as compared to phenolic ones, thereby enabling hypochlorous acid to react with chlorine dioxide to produce chlorate."
Kinetics of disproportionation of chlorous acid
1967. "A mechanism involving HOCl, CL--Cl)2, and Cl2 as intermediates is proposed for the disproportionation of chlorous acid."
KlorusKare chemistry ~Sankei-Group
"“Chlorous Acid (HClO2)”, which is the main active ingredient of chlorous acid water is chemical species in the state of undissociated molecue and it is dissolved by equilibrium with dissociated state of chlorous acid,(H+・ClO2-). In addition, this chlorous acid (HClO2) in undissociated form becomes chlorine dioxide (ClO2 (in Water Phase)) by Disproportionation Reaction and this chlorine dioxide changes to chlorite ion (ClO2-) by getting electron(e-) from water (H2O). Thus, this chlorite ion (ClO2-) returns to dissociated state of chlorous acid (H+ ・ClO2-) and starts to form equilibrium again with chlorous acid (HClO2) which is undissociated state.We call this one series of repeated reaction “Cycle Reaction.
Also, in the aqueous solution of “KlorusKare”, there is co-existence of the above-mentioned molecules and ions at the same time."
Characteristics of Chlorous Acid Water
Chlorine dioxide: a new agent for dialysis monitor disinfection in a pediatric center - PubMed
The data show that chlorine dioxide protocol and sodium hypochlorite/acetic acid protocol produced the same results on endotoxins. However, Chlorine Dioxide is to be preferred for its simultaneous disinfecting-cleaning and descaling activity which proves time-saving.
Efficacy of Chlorine Dioxide as a Gas and in Solution in the Inactivation of Two Trichothecene Mycotoxins
2005
Stabilized composition for chlorine dioxide - Koji Abe, Google Patents, JPWO2008111358A1 [Granted]
A stabilized composition for chlorine dioxide, which can keep the chlorine dioxide concentration in the drug substantially constant even when chlorine dioxide continues to be released as a gas from the drug containing dissolved chlorine dioxide, And a pH adjuster, and the pH adjuster is a buffered acid or a salt thereof in which the pH of a 5% aqueous solution at 25 ° C. is 2.5 to 6.8.
GRAS Notification for Chlorine Dioxide and Withdrawal of FAP 2266; Resonant Biosciences, Inc.
Chlorine Oxygen Acids and Salts, Chlorous Acid, Chlorites, and Chlorine Dioxide
Chlorine dioxide is finding increasing use as an oxidizing bleaching agent in the pulp and paper industry, replacing chlorine gas and aqueous sodium hypochlorite. Chlorine dioxide significantly reduc...
METHOD FOR PRESERVING CROPS patent
"Applying the dry [chlorine dioxide-generating] formulation directly to the surface of the crop increases the efficiency of the dry formulation for preventing disease caused by microorganisms when compared to prior methods that used the dry formulations to produce fumigation gases to combat the microorganisms."
Controlled dosing of chlorine dioxide or other sanitizing agents into pressurized water systems - Google Patents
{Avantec?} A medium having a support structure configured for circulation of a fluid therein, such as a replaceable filter cartridge, including a sanitizing agent which contains one or more reactants that are chemically configured for delivering chlorine dioxide or other sanitizing agents in a controlled dose to sanitize, deodorize, and disinfect upon being wetted by the fluid and positioned in the medium support structure to be exposed to the fluid circulating therein.
Pure and simple ** CDG Technology markets decontamination systems that use chlorine dioxide gas.
"But CDG has since developed Saf-T-Chlor, a proprietary heat-tolerant form of sodium chlorite that will not catch fire even when exposed to direct flame. No accidents have occured since Saf-T-Chlor was introduced."
"CDG's water treatment system... First, the gas kills microorganisms such as bacteria, viruses and parasites.
Second, the gas neutralizes organic compounds such as algae and sulfur, which can give the water a poor taste.
Third, the gas oxidizes dissolved metals such as iron and maganese, which causes them to settle out of the water so they can be be trapped in filters. If maganese isn't treated properly, it can turn water black and cause stains on laundry and plumbing fixtures."
HS-CL | Vapor Phase, Sodium Thiosulfate Media | Hydrosil International
"Hydrosil’s HS-CL is a zeolite-based media that is impregnated with sodium thiosulfate. The HS-CL is specially designed for removing chlorine, bromine, or chlorine dioxide from vapor streams. The theoretical capacity of HS-CL is approximately 8.0 percent by weight. The mechanism for chlorine/chlorine dioxide removal is a reaction with sodium thiosulfate" "The HS-CL is typically used in pulp and paper facilities, chemical, fresh and waste water treatment plants to remove chlorine, bromine, or chlorine dioxide."
Electron spin resonance study of chlorine dioxide adsorbed on the alkali-cation-exchanged X-type zeolites
Systems, Methods, and Compositions Involving Chlorine Dioxide and Zeolite - Google Patents
" potentially useful for disinfection, decolorization, mildew control, and/or odor control."
Distribution and Chemical Fate of 36Cl-Chlorine Dioxide Gas during the Fumigation of Tomatoes and Cantaloupe
***!!!!*** Also "major factors that affect the formation of chloroxyanion byproducts. Approximately 22% of the generated 36Cl-ClO2 was present on fumigated tomatoes after a 2 h exposure to approximately 5 mg of 36Cl-ClO2. A water rinse removed 14% of the radiochlorine." "Absent from tomatoes and cantaloupe were 36Cl-chlorite residues. Follow-up studies have shown that chlorate and perchlorate formation can be completely eliminated by protecting fumigation chambers from light sources."
Method of producing chlorine dioxide using sodium chlorite and a water-retaining substance in aqueous solution - Google Patents
"A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and optionally also a water-retaining substance such as magnesium sulfate, potassium chloride, potassium hydroxide, or calcium chloride) with excess protons, or activating an aqueous solution of metal chlorite and such a water-retaining substance with excess protons." "the solution can be mixed or otherwise combined with acid." "Presence in a sufficient amount of a water-retaining substance in the unactivated material reduces the rate of chlorine dioxide outgassing to no more than a negligible amount prior to activation."
Process for generating chlorine dioxide and apparatus therefor - Patent US-5476579-A - PubChem
Snoot! Spray - Understanding Bleach, Chlorine, Salt and Acidified Sodium Chlorite
"Snoot! Nasal Cleanser uses acidified sodium chlorite, which is often called "chlorine dioxide"; it is a very safe and widely-used sanitizer and oxidizer. But because people confuse this with "chlorine bleach" that is commonly used for making clothes white in the laundry and as a sanitizer in swimming pools, we have written"
Sterilization of hydrogen peroxide resistant bacterial spores with stabilized chlorine dioxide - AMB Express
"Bacillus pumilus SAFR-032 spores isolated from a clean room environment are known to exhibit enhanced resistance to peroxide, desiccation, UV radiation and chemical disinfection than other spore-forming bacteria. The survival of B. pumilus SAFR-032 spores to standard clean room sterilization practices requires development of more stringent disinfection agents. Here, we report the effects of a stabilized chlorine dioxide-based biocidal agent against spores of B. pumilus SAFR-032 and Bacillus subtilis ATCC 6051. Viability was determined via CFU measurement after exposure. Chlorine dioxide demonstrated efficacy towards sterilization of spores of B. pumilus SAFR-032 equivalent or better than exposure to hydrogen peroxide. These results indicate efficacy of chlorine dioxide delivered through a stabilized chlorine dioxide product as a means of sterilization of peroxide- and UV-resistant spores."
Differential efficacy of a chlorine dioxide‐containing sanitizer against single species and binary biofilms of a dairy‐associated Bacillus cereus and a Pseudomonas fluorescens isolate
"Aims: Daily exposure to 100 p.p.m. chlorine dioxide of single species and binary biofilms of dairy-associated Bacillus cereus DL5 and Pseudomonas fluorescens M2, attached to stainless steel surfaces"
Antimicrobial effect of acidified sodium chlorite, sodium chlorite, sodium hypochlorite, and citric acid on Escherichia coli O157:H7 and natural microflora of fresh-cut cilantro - 234-1711.pdf
SkunkAway with Active Chlorine Dioxide Technology Removes Skunk Odor
"SkunkAway® is an activated chlorine dioxide, easy-to-use, spray solution for completely breaking down and removing skunk odors from pets. Each bottle can treat 4 large sized dogs. Why just mask skunk odors when you can now completely break it down and eliminate it."
Disinfecting using Chlorine Dioxide: Using the Aqua-Tab 20G dry tablet product from Attica Veterinary Associates
Process comparison: Generating chlorine dioxide gas: chlorate vs. chlorite
"This case study evaluates the effectiveness of generating chlorine dioxide gas using Eka Chemical's method of Purate (Sodium Chlorate/Hydrogen Peroxide) and Sulfuric Acid technology as it compares to the Vulcan (Rio Linda) chlorine gas/25% sodium chlorite system process"