Dielectric constants and electrical conductivities of sodium dodecyl sulfate in aqueous solutions

Journal Article · Sun Mar 01 00:00:00 EST 1981 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(81)90159-4· OSTI ID:6740022

Abe, M; Ogino, K

Dielectric properties of sodium dodecyl sulfate in aqueous solution have been studied. The dielectric constant and ac electrical conductivity were measured in the frequency range 30 Hz to 6 MHz. At lower frequencies, with increasing concentrations of sodium dodecyl sulfate, dielectric properties were greatly affected by polarization on the surfaces of the electrode, the so-called space charge polarization. ac electrical conductivities were dependent on the concentration of sodium dodecyl sulfate at all frequencies. The activation energies of dc electrical conduction were much larger in the molecular state than in the aggregation state. The radius of a spherical particle with an electric double layer could be calculated through the measurement of dielectric constant and dc electrical conductivity. 18 references.

• OSTI ID: 6740022
• Journal Information: J. Colloid Interface Sci.; (United States), Vol. 80:1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
SULFURIC ACID ESTERS
DIELECTRIC PROPERTIES
ELECTRIC CONDUCTIVITY
ACTIVATION ENERGY
ALTERNATING CURRENT
AQUEOUS SOLUTIONS
CALCULATION METHODS
DIRECT CURRENT
HZ RANGE
MHZ RANGE 01-100
QUANTITY RATIO
CURRENTS
DISPERSIONS
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ENERGY
ESTERS
FREQUENCY RANGE
MHZ RANGE
MIXTURES
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)