The dielectric properties of formamide, ethanediol and methanol

The dielectric properties of the solvents formamide, ethanediol and methanol have been studied over a frequency range of 10 MHz-70 GHz and a temperature range of 10-40 degrees C. It was found that formamide is best represented by a single Debye type dispersion, ethanediol by a double Debye and methanol by a Cole-Cole distribution of relaxation times.

[1]  C. P. Smyth,et al.  Microwave Absorption and Molecular Structure in Liquids. LXII. The Three Dielectric Dispersion Regions of the Normal Primary Alcohols1 , 1965 .

[2]  E. Grant,et al.  Alternative interpretations of dielectric measurements with particular reference to polar liquids , 1974 .

[3]  R. Shack,et al.  Dielectric dispersion of urea and thiourea , 1972 .

[4]  J. Saxton.  Dielectric dispersion in pure polar liquids at very high radio-frequencies II. Relation of experimental results to theory , 1952, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[5]  J. Hasted,et al.  The use of statistical theory in fitting equations to dielectric dispersion data , 1974 .

[6]  K. Slevogt.  Dispersion und Absorption elektrischer Wellen in Alkoholen und wäßrigen Lösungen , 1939 .

[7]  E. Grant,et al.  A cell for measuring the complex permittivity of lossy liquids at very high radio frequencies , 1970 .

[8]  E H Grant,et al.  The Dielectric Properties of Methyl and Ethyl Alcohols in the Wavelength Range 3 cm - 52 cm , 1957 .

[9]  J. Moreau,et al.  Réalisation d'un réflecto-interféromètre dans la bande des 70 GHz destiné à la mesure de la permittivité complexe de liquides à fortes pertes. Application a l'étude de l'eau, de l'éthylène-glycol et du formamide en fonction de la température , 1976 .

[10]  R. Sheppard,et al.  Precision waveguide cells for the measurement of permittivity of lossy liquids at 70 GHz , 1977 .

[11]  E. Grant,et al.  Design and construction of a coaxial line cell for measuring the complex permittivity of a liquid , 1972 .

[12]  R. Sheppard.  An automated coaxial line system for determining the permittivity of a liquid , 1972 .

[13]  S. J. Bass,et al.  Dielectric Properties of Alkyl Amides. II. Liquid Dielectric Constant and Loss , 1964 .

[14]  R. Cole,et al.  Dielectric Properties of Methanol and Methanol‐1‐Propanol Solutions , 1955 .

[15]  Gösta. Åkerlöf,et al.  DIELECTRIC CONSTANTS OF SOME ORGANIC SOLVENT-WATER MIXTURES AT VARIOUS TEMPERATURES , 1932 .

[16]  K. Cole,et al.  Dispersion and Absorption in Dielectrics I. Alternating Current Characteristics , 1941 .

[17]  R. Shack,et al.  Complex permittivity measurements at 8.6 mm wavelength over the temperature range 1-60°C , 1967 .