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Showing 1 to 20 of 62 for “"sodium hypochlorite"”.
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Coal desulfurization with sodium hypochlorite
… coal and Illinois No. 6 coal were conducted with sodium hypochlorite in the laboratory. Pittsburgh No. 8 coal was leached by hypochlorite at high pHs in one step only. The hypochlorite concentration varied from 0.2 to 0.6 molar; sodium hydroxide concentration, from 0.2 to 0.8 molar; and …
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Sodium hypochlorite generation for household water disinfection in Haiti
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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Photochemical Tailoring of Single-Wall Carbon Nanotubes by Photoexcited Sodium Hypochlorite
… thesis project, the role of photodissociated sodium hypochlorite to obtain covalently functionalized SWCNTs was studied. New fluorescence emission features were found and assigned to additional addend sites. The effect on functionalization of varying sodium hypochlorite concentrations, …
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Sodium hypochlorite generation for household water disinfection : a cast study in Nepal
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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The use of topical sodium hypochlorite in the management of Pseudomonas aeruginosa burn wound infection
… Hospital. 3. To investigate the local effects of sodium hypochlorite solutions in Pseudomonas aeruginosa burn wound infection with regards to efficacy and toxicity.
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The Analysis of Ballpoint Inks with APCI-MS after Fading with Light, Hydrogen Peroxide and Sodium Hypochlorite Bleach
… influences. Light, hydrogen peroxide and sodium hypochlorite bleach were used to simulate natural and deliberate fading of inks and dye solutions. Benzophenone and phenol molecules were identified as degradation products but their presence differed for each of the different conditions …
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SODIUM HYPOCHLORITE'S EFFECT ON NICKEL-TITANIUM ROTARY INSTRUMENTS AND ITS EFFECT ON RESISTANCE TO FRACTURE
… the effect of partial and total immersion in sodium hypochlorite on nickel-titanium rotary files and to determine whether resistance to fracture was influenced by the immersion time. One hundred K3™ and 100 ProFile® rotary files were either partially or totally immersed in 5.25% sodium …
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Use of electromagnetic stimulation on an Enterococcus faecalis biofilm in root canal treated teeth in vitro
… solution. The most commonly used irrigant is sodium hypochlorite, often at concentrations toxic to human cells. Electromagnetic wave irradiation is a novel method of disinfection that has been shown to be bactericidal against planktonic microorganisms in solution, but its efficacy against an …
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Spectrophotometric determination of irrigant extrusion using passive ultrasonic irragation, endoactivator or conventional irrigation
… MS PhD, Scott McClanahan DDS MS Introduction: Sodium hypochorite (NaOCl) is the irrigant most often used in endodontics due to its antimicrobial activity and tissue dissolution ability. Irrigation is critical to endodontic success and several new methods have been developed [Passive Ultrasonic …
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Chlorhexidine Interaction with Microcrystalline Cellulose
… in medical and dental applications, reacts with sodium hypochlorite, a common cleanser and bleach, forming potentially toxic byproducts. This reaction is particularly concerning in both medical settings and everyday laundering, where chlorhexidine-treated fabrics washed with bleach develop …
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Determining the removal effectiveness of flame retardants from drinking water treatment processes
… after the pre-treatment chemical addition of sodium hypochlorite. The interaction of sodium hypochlorite and organophosphate triesters, through oxidation, was suspected to be the reason for the removal. Second, the concentrations of tri(2-chloroethyl) phosphate after the filtration stage and …
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The development of appropriate brine electrolysers for disinfection of rural water supplies
… anodic materials for the electrolysis of brine (sodium chloride) for the production of sodium hypochlorite as a source of available chlorine for disinfection of rural water supplies has been undertaken. The electrolyser design used was tubular in form, having two chambers i.e. anode inside and …
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Evaluating localized electrochlorination systems as a low-cost means of producing potable water
… African rural communities seeking decentralized sodium hypochlorite production for water treatment. Methods: Investigations on operational parameters, usability, cost-effectiveness, and impact on water quality were conducted within diverse settings, encompassing hospitals, community water tanks, …
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The Effect of Endodontic Solutions on Resorcinol-Formalin Paste in Teeth
… in a humidor. The solutions tested were 0.9% sodium chloride, 5.25% sodium hypochlorite, chloroform, Endosolv R®, 3% hydrogen peroxide, and 70% isopropyl alcohol. Seven samples per solution were tested and seven samples using water served as controls. One drop of the solution was placed over …
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Efficacy of Delmopinol in Preventing the Attachment of Campylobacter jejuni to Chicken, Stainless Steel and High-Density Polyethylene
… were sprayed with 0.5% or 1.0% delmopinol, 0.01% sodium hypochlorite, or distilled water. Contact times were 1, 10, or 20 min prior to rinsing with buffered peptone water. Rinses were serially diluted onto Campy Cefex Agar for enumeration. For additional samples, solutions were applied first, …
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Etching and chemomechanical polishing of compound semiconductors using halogen-based reagents
… in the etchant solutions. The reactions of hypochlorite and hydrogen peroxide follow a similar pattern, beginning with oxidation of the substrate surface, followed by subsequent hydration in the etchant solution and final product removal. The solubility of the products and the action of the …
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Dewatering Of Biosolids By Sodium Ferrate
… ferrate products prepared using calcium hypochlorite and sodium hypochlorite were used. Samples of anaerobic digested sludge and waste activated sludge with solids content of 2.1% and 0.95 %, respectively were conditioned with both products to evaluate and compare their effectiveness. …
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Growth and root inhibition in Axenic hydrilla verticillata cultures
… involves surface treatment of the tuber with sodium hypochlorite and removal of outer bud scales. Tubers were grown in a mineral salts media containing 15 ug/ml penicillin and 1 ug/ml streptomycin to prevent bacterial growth. Two percent glucose and .5 per cent casein were added to facilitate …
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Mechanistic Study of Fouling and Regeneration of Palladium-Based Bimetallic Catalysts Used for the Removal of Pollutants From Drinking Water
… reduction rate by over two orders of magnitude. Sodium hypochlorite and heated air were effective regenerants for sulfide-fouled catalysts, restoring nitrate reduction rates for a Pd-In/gamma-Al2O3 catalyst from 20% to between 39 and 60% of original levels. Results from ICP-MS revealed that …
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Numerical modeling of multiphase fluid flow through the electrolytic cell
Electrolytic cells are used to obtain sodium hypochlorite (NaOCl), an important industrial product, from seawater. The chemical reaction of the process (NaCl + H2O → NaOCl + H2) produces hydrogen gas bubbles near the cathode's surface inside a continuous liquid phase. In time, solid particles …
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