Microwave Dielectric Study of Tetramethylurea andN, N-Dimethylacetamide Binary Mixture in Benzene
نویسندگان
چکیده
منابع مشابه
Molecular associations in binary mixture of pyridine and N, N-dimethylacetamide in benzene solution using microwave absorption data
The dielectric relaxation time (τ ) of binary mixtures of different molar concentrations of pyridine (C5H5N) and N, Ndimethylacetamide (DMA) in benzene solution has been calculated by using standard microwave techniques and Gopala Krishna's [Trans Farad Soc, 33 (1957) 767.] single frequency (9.875 GHz) concentration variational method at different temperatures (25, 30, 35 and 40°C). It is found...
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The dielectric relaxation time (τ) and dipole moment (μ) of binary mixtures of different molar concentrations of N-methylformamide (NMF) in binary mixtures of NMF and tetramethylurea (TMU) in benzene have been calculated at 25, 30, 35 and 40 ◦C using standard standing wave microwave techniques and following the single frequency (9.885 GHz) concentration variational method of Gopala Krishna. The...
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The dielectric relaxation times τ and dipole moments μ of N-methylacetamide (NMA) mixed with N,N-dimethylformamide (DMF) in benzene solutions have been obtained using standard standing wave microwave techniques and Gopala Krishna’s single frequency (9.90 GHz) concentration variational method at 25, 30, 35, and 40 ◦C. The energy parameters (∆Hε , ∆Fε , ∆Sε ) for the dielectric relaxation process...
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Powder mixture rules derived from the filler particles with the shapes of sphere, cylinder or rod, and lamella or disk with random distributions are studied in this paper. Three ceramic powders of fillers with dielectric constants of 10, 20, and 36, respectively, are adopted. The experimentaldielectric constantsof ceramicdispersions in thepolyethylenematrix atmicrowave frequency are compared to...
متن کاملDielectric Properties of Solutions of a Binary Mixture Resorcinol/n-Dodecanol in Heptane
In previous publications we reported about the dielectric properties of mixtures of n-hexanol and some aromatic diols with mesitylenc [1] and n-hexanol or n-dodecanol mixed with some aliphatic diols and diluted with heptane [2], The present communicat ion deals with mixture of a long chain alcohol, n-dodecanol "D", with an aromatic diol "R" (resorcinol, 1,3-dihydroxy benzene). Heptane " H " was...
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ژورنال
عنوان ژورنال: E-Journal of Chemistry
سال: 2011
ISSN: 0973-4945,2090-9810
DOI: 10.1155/2011/329637