Dielectric constant of water from 0 to 100 C Article Swipe

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C Malmberg , A. A. Maryott ·

YOU? · · 1956 · Open Access · · DOI: https://doi.org/10.6028/jres.056.001 · OA: W2332926981

An equal ratio arm, capacitance-conductance bridge, operated at frequencies below 100 kilocycles per second, was med to measure the dielectric constant of water with an accuracy of better than 0.1 percent at 5-degree intervals over the range .0° to 100° C. At 25° C the dielectric constant was found to have the value 78.30, which is about 0.3 percent lower than t hat usually accepted.The data fit the equation E= 87.740 -0.400081+ 9.398(10-4) tL 1.410 (10-6 )13, with a maximum deviation of 0.01 unit in dielectric constant.The experimental method and sources of error are considered in some detail.