Results 171 to 180 of about 14,856 (206)

Analysis of Extraction of Coal Oxidation Residue in NaOCl

Advanced Materials Research, 2013
Sequential extraction of four coal oxidation residues (COR) from aqueous NaOCl solution with petroleum ether (PE), carbon disulfide (CS2), acetone and methanol were investigated. The results suggest that methanol is an effective extraction solvent, giving the highest extraction yields for four COR. The extraction fractions were analyzed by GC/MS. It is
Gui Zhen Gong, Ji Ming Chu, Xian Yong Wei, Zhi Min Zong   +3 more
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Nickel-Catalyzed Benzylic Oxidation with NaOCl

Synthetic Communications, 1999
Abstract Ni(bpy)2Cl2 has been found to be an efficient catalyst for the oxidation of various alkylbenzenes with hypochlorite. Substituted toluenes having electron withdrawing group at 4-position were oxidized to the corresponding substituted benzoic acids in excellent yields.
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Effect of Catalysts on Oxidation of Ruqigou Coal with NaOCl

Advanced Materials Research, 2014
The effect of molecular sieve, activated carbon, and nickel-based catalyst on oxidation of Ruqigou coal with NaOCl was investigated. The yields of diethyl ether-soluble fractions from reaction mixture are 67.3% for black test, 71.2% for molecular sieve, 68.6% for activated carbon and 70.3% for nickel-based catalyst, respectively.
Gui Zhen Gong, Bo Di, Wei Hua
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Carisolv^TM: an alternative to NaOCl in immature root canals?

International Endodontic Journal, 2005
AbstractAim  To test the null hypothesis that CarisolvTM is no more effective than 1% sodium hypochlorite in cleaning uninstrumented, immature root canals.Methodology  A total of 240 uniform, immature ovine incisors were decoronated at the CEJ level and randomly divided into four groups of 60.
Rahman S, Whitworth JM, Dummer PMH
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Effect of reducing agents on bond strength to NaOCl-treated dentin

Dental Materials, 2011
The purpose of this study was to evaluate the effect of three antioxidant/reducing agents with different application times on microtensile bond strengths to sodium hypochlorite-treated dentin.The occlusal surfaces of 24 extracted human third molars were horizontally cut to expose sound dentin. The teeth were divided into eight groups.
Prasansuttiporn, Taweesak, Nakajima, Masatoshi, Kunawarote, Sitthikorn, Foxton, Richard M., Tagami, Junji   +4 more
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Effect of enzymatic and NaOCl treatments on acrylic roughness and on biofilm accumulation

Journal of Oral Rehabilitation, 2006
summary  As denture cleansers should be able to reduce biofilm accumulation without changing the acrylic resin surface structure, this study evaluated the effect of denture cleansers on surface roughness of acrylic resin and on biofilm accumulation.
E M C X, Lima, J S, Moura, A A, Del Bel Cury, R C M R, Garcia, J A, Cury   +4 more
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NaOCl and EDTA irrigating solutions for endodontics: SEM findings.

Bulletin du Groupement international pour la recherche scientifique en stomatologie & odontologie, 1993
Les canaux de la racine dentaire des prémolaires humaines ont été instrumentés manuellement avec files K type et ensuite irrigués avec différentes solutions pour évaluer les conditions de netteté de la surface endodontique.Les canaux irrigués avec une solution saline à 0,9% ou de H2O2 (10 volumes) ont démontré la présence de prédentine ou d’une couche ...
Franchi, M, Eppinger, F, Filippini, G.F, Montanari, G   +3 more
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Formation of NCl3 and N2O in the reaction of NaOCl and nitrogen compounds

Journal of Hazardous Materials, 1985
Abstract This paper deals with the problems that can arise when a nitrogen-containing compound, in this case ammonium chloride, is present in a solution which is to be chlorinated. The chlorination can be performed with chlorine itself, or with a compound capable of forming active chlorine, such as sodium hypochlorite.
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ChemInform Abstract: Nickel‐Catalyzed Benzylic Oxidation with NaOCl.

ChemInform, 1999
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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Impact of NaOCl ageing on reinforced PVDF hollow fiber membranes used in membrane bioreactor

Journal of Water Process Engineering, 2021
Rong Wang
exaly