ISSN:
1435-1536
Keywords:
Zeta-potential
;
donator/acceptorbehavior
;
surfaceinteraction
;
aerosil
;
silica
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Aerosil is studied with regards to its acceptor behavior by means of electrokinetic measurements and UV measurements in various organic liquids. Whereas the values of the general negativ zeta-potential only approximately correspond with the donor number of the liquids determined according to Gutmann, Marie and Gal, and Kravtzov et al., an excellent agreement between zeta-potential and the UV maximum of a dicyano-bis(1,10-phenanthrolin)-ferric [Fe(phen)2(CN)2] complex adsorbed at the solid-liquid interface was found. The fact that traces of water decrease the negative zeta-potential of aearosil in organic liquids is attributed to hydration of the aerosil surface.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00660308
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