The complex dielectric permittivity, ε*(f) of aqueous solutions of methylene blue (MB) at various concentrations and temperatures was measured in lower frequency range (20 Hz − 2 MHz) using Agilent precision LCR meter. From ε*(f), complex impedance Z*(f), complex conductivitym*(f) and loss tangent (tan δ) were calculated. Loss tangent and conductivity spectra were used to calculate the electrode polarization relaxation time ( τ EP ) and molecular conductivity ( ₘ), respectively. The study provides insight into the effect of variations in the concentration of MB in aqueous medium and temperature on its electrical characteristics.
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Vaja et al. (2024) studied this question.
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