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WO2014036659A1 - Disinfectant formulation comprising ...- material for disinfection of sodium hypochlorite ion ,sodium hypochlorite calcium hydroxide formulation disinfectant formulation volume Prior art date 2012-09-07 Application number PCT/CA2013/050693 Other languages French (fr) Inventor Marcus E. MARTIN Edward K. PARDIAK Original Assignee Martin Marcus E Pardiak Edward K Priority date (The priority date is an assumption and is not a legal conclusion.swimming pool water disinfection - LenntechDisinfection methods for swimming pool water In some countries, sodium hypochlorite is used for both oxidation and disinfection of swimming pools. When it is added to water, sodium hypochlorite increases the pH value. It is better to use chlorine as a disinfectant and an oxidizer at a pH value of 6,5. Often, acid is added to lower the pH value.



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The science of chlorine-based disinfectant

Dec 11, 2013·One of the first known uses of chlorine for disinfection was in the form of hypochlorite known as chloride of lime. Snow used it in 1850 3 after an outbreak of cholera to attempt to disinfect the Broad Street Pump water supply in London.

Module 5: Disinfection and Chlorination

Sodium Hypochlorite It is acquired as a liquid in the form of sodium hypochlorite (NaOCl), which is bleach. It may be obtained in carboys, or bulk delivery. In this form it is available in concentrations of 12.5% and 15%. This is the general form of hypochlorite used in most wastewater treatment plants.

Hypochlorite - an overview | ScienceDirect Topics

Nicholas F. Gray, in Microbiology of Waterborne Diseases (Second Edition), 2014 Hypochlorite. Hypochlorite was the original form of chloride used for the disinfection of drinking water. Known as chloride of lime, calcium hypochlorite (Ca(OCl) 2) is a solid which can be used as a powder, granules or in tablet form and is still widely used today at smaller WTPs.

Biofilm and Effective Chemical Treatment for Disinfection ...

Jun 17, 2019·At a pH of 7.5, the hypochlorous and hypochlorite ions will be present in near-equal concentrations with only minimal biocidal effectiveness. As the pH passes 8.0, the hypochlorous ion content falls to less than 4%, hindering biocidal activity significantly. This simple, but widely forgotten, phenomenon is why many disinfection efforts fail.

Hypochlorite | ClO- - PubChem

Sodium hypochlorite may react with amino acids to neutralize them and form water and salt. Hypochlorous acids (HOCl-) present in sodium hypochlorite solutions may act as solvents in contact with organic tissue to release chlorine, which forms chloramines when combined with the protein amino group that disrupt cell metabolism.

Disinfection by Sodium Hypochlorite. Dialysis Applications ...

Sodium hypochlorite is an electrolytic chloroxidizer, and solutions are used as a topical disinfectant. Chlorine is the active ingredient with a pH of 9.5–10.5. Sodium hypochlorite 50% solution (Amuchina, Italy) contains chlorine (0.55%), and costs less than 10% povidone-iodine or 4% chlorhexidene.

(PDF) Seawater disinfection by chlorine dioxide and sodium ...

Continuous seawater disinfection by chlorine dioxide (ClO2) was studied at residual concentrations of 0.2 and 0.4 mg ClO2 L−1 and compared with sodium hypochlorite (NaClO) disinfection at 1 mg L ...

Hypochlorite based disinfectant for dental impressions ...

Nov 07, 1994·In certain embodiments, a sodium hypochlorite treating solution may be used that contains about 0.5% sodium hypochlorite and has a pH of about 10. As used herein, the term "about" means that, when referring to a pH range, that the value given is able to be varied plus or minus approximately 0.5 pH units.

Mechanisms of Actions of Sodium Hypochlorite in ... - JST

Nov 04, 1996·The effectiveness of sodium hypochlorite in the cleaning and disinfection processes depends on the concentration of available chlorine and the pH of the solution. Hypochlorous acid (HOCI) is a weak acid and dissociates to the hypochlorite ion ( - OCI) and proton (H +) depending on the solution pH. It is generally believed that HOCI is the ...

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Results for water disinfection chemical generators equipment with electrochlorination technology which is better than commercial sodium hypochlorite for water disinfection applications from Hypox, Clorel, Clorel and other leading brands. Compare and contact a supplier serving Moldova

What is Sodium Hypochlorite Used For?

The use of sodium hypochlorite in swimming pools also stops the growth of pathogenic bacteria. In the UK, this substance is used as a swimming pool disinfectant at a concentration range of 1.5-3.0 mg/l or parts per million. The pH level is maintained at either neutral or slightly basic level of 7.6.

Uses of inorganic hypochlorite (bleach) in health-care ...

Hypochlorite has been used as a disinfectant for more than 100 years. It has many of the properties of an ideal disinfectant, including a broad antimicrobial activity, rapid bactericidal action, reasonable persistence in treated potable water, ease of use, solubility in water, relative stability, relative nontoxicity at use concentrations, no poisonous residuals, no color, no …

Biofilm and Effective Chemical Treatment for Disinfection ...

Jun 17, 2019·At a pH of 7.5, the hypochlorous and hypochlorite ions will be present in near-equal concentrations with only minimal biocidal effectiveness. As the pH passes 8.0, the hypochlorous ion content falls to less than 4%, hindering biocidal activity significantly. This simple, but widely forgotten, phenomenon is why many disinfection efforts fail.

Basic Disinfection Study Guide - Wisconsin Department of ...

The organism used to determine the effectiveness of disinfection is a bacteria called fecal coliform, commonly found in the intestinal tracts of humans and other warm-blooded animals. Free available chlorine is the amount of chlorine in water in the form of hypochlorous acid (HOCl) and hypochlorite ion (OCl-).

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The effect of water and sodium hypochlorite disinfection ...

Jan 01, 2013·The selection of a disinfectant depends on the impression material chosen, given that it should be efficient and should not alter the material's properties.14, 15 According to the Guidelines previously mentioned, the products recommended for the disinfection of impression materials are chlorhexidine, sodium hypochlorite, glutaraldehyde and ...

Disinfection of Impression Materials: A Comprehensive ...

3.1.3. Sodium Hypochlorite Sodium hypochlorite is a chemical with formula of NaOCl. It is composed of sodium cation and hypo-chlorite anion. It is water soluble. It is often used in industries for bleaching, surface purification, odor re-moval, and disinfection of water. Hypochlorite re-moves stains from clothes at room temperature. Hypo-

Article Details: Disinfection Fact about Hypochlorous Acid

ALL (fresh or old) Sodium Hypochlorite solutions, (“bleach”) have a pH of 10.25+ producing very little HOCL. These solutions produce mainly the OCl- ion, a very poor disinfectant which is from 80 to 120 times less effective as a disinfectant than HOCl, providing that there is any chlorine left in the stock solution.

Inactivation of HIV-1 by Chemical Disinfectants: Sodium ...

oxidizing agent, elemental chlorine and hypochlorite ion. Combined available chlorine is formed by the reaction of sodium hypochlorite with organic matter (e.g. blood, faeces, tissues) causing the production of chloramines or JYehloro-compounds. It is generally considered that the greatest antimicrobial activity is

Chemical Disinfectants | Disinfection & Sterilization ...

Sodium Hypochlorite is a chlorine compound often used as a disinfectant or a bleaching agent. Sodium hypochlorite in 0.5% w/v solution is called Dakin's solution, and is used as an antiseptic to clean infected topical wounds. Sodium hypochlorite is an inorganic sodium salt in which hypochlorite is the counterion.

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The effect of boron nitride on the stability of disinfectant!

Mar 05, 2020·The study on the new type of sodium hypochlorite stabilizer shows that when 0.6% sodium chloride is added into the sodium hypochlorite solution and placed in an open container at 55 ℃ for 4 hours, the effective chlorine content in the sodium hypochlorite solution can still maintain 91.73% of the initial concentration; after placed in a closed ...

SODIUM HYPOCHLORITE - Olin Chlor Alkali

Sodium hypochlorite solution grades are typically defined by differences in product assay and/or alkalinity content. From an industrial perspective, Olin offers a variety of different product strengths depending on industries served and local market demands with …

What is sodium hypochlorite? - Quora

Answer (1 of 6): Sodium hypochlorite (NaOCl) is a compound that can be effectively used for water purification. It is used on a large scale for surface purification, bleaching, odor removal and water disinfection. Sodium hypochlorite is a clear, slightly yellowish solution with a characteristic ...

What is sodium hypochlorite? - Quora

Sodium hypochlorite can act as a disinfectant and a bleaching agent. Sodium chlorite can be used to make chlorine dioxide (ClO2) by the reaction: 2NaClO2 + Cl2 -> 2ClO2 + 2NaCl, which can be used as a disinfectant or a bleaching agent. Hypochlorite is a ClO- ion whereas chlorite is a ClO2- ion. Their chemical reactions are different. 3.2K views