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Study of electrical conductivity of different water liquids and electrolytes

Golnabi, H ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. Publisher: 2010
  3. Abstract:
  4. In this study electrical conductivities of pure, distilled, municipal, industrial and river water liquids along with those of different electrolyte solutions are computed at room temperature (25 °C) and compared with the experimental results. For experiment, using a measuring module both R and C value of the water samples are measured by using two different cylindrical cells. The obtained RC product for the long and short cell probes are compared for different water samples. Obtained results give the relaxation time, which is the measure of the conduction relaxation and for a good conducting medium such a time is very short. The relaxation time for the salt solution is about 0.07044 ms (0.07038 ms for short probe) for boiled water 0.355 ms (0.350 ms), tap water 0.374 ms (0.364 ms), mineral water 0.524 ms (0.515 ms), and finally for the distilled water is about 8.059 ms (6.943 ms). The conductivity of samples are measured by the EC instrument and then by using the RC values the imaginary part of the permittivity values for different liquid samples are determined. The imaginary part of the permittivity for the distilled water is the minimum value of about 23.67×10-7 (F/m) while for the salt water solutions is the highest value of 220.99×10-7 (F/m)
  5. Keywords:
  6. Cell ; Electrical conductivity ; Electrolyte ; Water
  7. Source: Australian Journal of Basic and Applied Sciences ; Volume 4, Issue 8 , 2010 , Pages 3985-3997 ; 19918178 (ISSN)