TITLE

Surface Potential at the Gas–Nonaqueous Solution Interface

AUTHOR(S)
Parfenyuk, V. I.
PUB. DATE
July 2004
SOURCE
Colloid Journal;Jul/Aug2004, Vol. 66 Issue 4, p466
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Data on the values of surface potential at the gas–liquid interface are reviewed and analyzed for a number of organic solvents (saturated alcohols, from methanol to n-butanol; acetone, acetonitrile, dimethylformamide, and dimethyl sulfoxide). The values obtained by different methods are compared with similar values calculated based on the method of Volta-potential difference. It is shown that the solvents studied are characterized by the negative values of surface potential in contrast to water having positive potential (+0.1 V). Negative sign of surface potential for the studied organic liquids confirms that their dipoles are oriented by the positive pole toward the gaseous phase, whereas by their negative pole, toward the liquid phase.
ACCESSION #
15340983

 

Related Articles

  • Effect of Organic Four Solvents on Natural Phytoplankton Assemblages: Consequences for Ecotoxicological Experiments on Herbicides. Bérard, A. // Bulletin of Environmental Contamination & Toxicology;Aug96, Vol. 57 Issue 2, p183 

    The article examines the potential effect of organic solvents on natural phytoplankton assemblages. Solvents used in the experiments included ethanol, dimethyl sulfoxide, dimethyl formamide, and methanol. Results showed that composition or diversity of the phytoplankton communities treated with...

  • Anti-Prelog Reduction of Prochiral Carbonyl Compounds by Oenococcus oeni in a Biphasic System. Jian Hu; Yan Xu // Biotechnology Letters;Jul2006, Vol. 28 Issue 14, p1115 

    An aqueous-organic biphasic system was established and used with whole cells of Oenococcus oeni to reduce 2-octanone to ( R)-2-octanol. The conversion reached 99% when the Tris/borate buffer was increased from 50 mM to 300 mM in the aqueous phase. In addition, the conversion increased as the log...

  • Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods. Chen, Y. J.; Xue, X. Y.; Wang, Y. G.; Wang, T. H. // Applied Physics Letters;12/5/2005, Vol. 87 Issue 23, p233503 

    In a basic water-alcohol mixing solution without any other toxically organic solvents, the single crystalline SnO2 nanorods with diameters of 4–15 nm and lengths of 100–200 nm were synthesized using SnCl4 as a precursor. The sensors fabricated from the nanorods exhibited the...

  • Experimental testing of the calculation results of the dissociation constants of organic compounds in nonaqueous media. Zevatskii, Yu. E.; Ruzanov, D. O.; Samoilov, D. V. // Russian Journal of General Chemistry;Sep2009, Vol. 79 Issue 9, p1890 

    27 Dissociation constants of carboxylic and NH-acids in methanol, ethanol and formamide were measured by potentiometric method. The selection of compounds for the analysis is determined by the preliminary computation of the constants by elemental linear empirical method, and also by the absence...

  • Optimized lipase-catalyzed synthesis of adipate ester in a solvent-free system. Chaibakhsh, Naz; Rahman, Mohd Basyaruddin Abdul; Abd-Aziz, Suraini; Basri, Mahiran; Salleh, Abu Bakar; Rahman, Raja Noor Zaliha Raja Abdul // Journal of Industrial Microbiology & Biotechnology;Sep2009, Vol. 36 Issue 9, p1149 

    Immobilized Candida antarctica lipase-catalyzed esterification of adipic acid and oleyl alcohol was investigated in a solvent-free system (SFS). Optimum conditions for adipate ester synthesis in a stirred-tank reactor were determined by the response surface methodology (RSM) approach with...

  • Wheat germ lipase catalyzed kinetic resolution of secondary alcohols in non-aqueous media. Xiaole Xia; Yong-Hua Wang; Bo Yang; Xiaoning Wang // Biotechnology Letters;Jan2009, Vol. 31 Issue 1, p83 

    The lipase from wheat germ was used for the kinetic resolution of secondary alcohols. It has the opposite enantioselectivity against the Kazlauskas rule and acts as an anti-Kazlauskas catalyst. The effect of initial water activity, organic solvent, acyl donor and temperature were investigated....

  • Femtosecond dynamics of hydrogen-bonding solvents. Formamide and N-methylformamide in acetonitrile, DMF, and water. Chang, Yong Joon; Castner, Edward W. // Journal of Chemical Physics;7/1/1993, Vol. 99 Issue 1, p113 

    We have used optical-heterodyne-detected optical Kerr effect (OHD-OKE) spectroscopy to measure the ultrafast dynamical profile of the amide series formamide (FA), N-methylformamide (NMF), and N,N-dimethylformamide (DMF). We have studied the concentration dependence of binary solutions of FA and...

  • The dissolution of organic solvents from Amerlock 400 epoxy paint. Ball, J M; Wren, J C; Mitchell, J R // Canadian Journal of Chemistry;Jul2003, Vol. 81 Issue 7, p850 

    The dissolution of organic solvents from containment coatings into the sump water is expected to be a key rate-controlling process, influencing the pH, the steady-state water radiolysis product concentration, and the formation of organic iodides in containment following a postulated reactor...

  • Self-assembly of soluble anthracene, tetracene and pentacene derivatives. Olive, Alexandre G. L.; Del Guerzo, Andr�; Belin, Colette; Reichwagen, Jens; Hopf, Henning; Desvergne, Jean-Pierre // Research on Chemical Intermediates;2008, Vol. 34 Issue 2/3, p137 

    New soluble disubstituted acenes (tetracene, pentacene) have been designed in order to mimic 2,3-alkoxy derivatives of anthracene. They have been shown to self-assemble and gellify a large variety of organic solvents. This process involves the formation of nano-fibres through non-covalent...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics