Abstract
The electrical resistance of the binary liquid system cyclohexane + acetic anhydride is measured, in the critical region, both in the pure mixture and when the mixture is doped with small amounts (≈ 100 ppm) of H2O/D2O impurities.T c was approached to aboutt=3×10−6 wheret=(T −T c )/T c . The critical exponentb ≈ 0.35 in the fit of the resistance data to the equationdR/dT ∼t −b does not seem to be affected appreciably by the impurities. There is a sign reversal ofdR/dt in the non-critical region. Binary liquid systems seem to violate the universality of the critical resistivity.
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Kumar, A., Gopal, E.S.R. Impurity effects on the critical behaviour of the electrical resistance of binary liquid mixtures. Pramana - J. Phys. 12, 511–522 (1979). https://doi.org/10.1007/BF02872122
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DOI: https://doi.org/10.1007/BF02872122