Letter | Published:

Effect of Pressure on the Viscosity of Water

Naturevolume 207pages620621 (1965) | Download Citation



AN accurate knowledge of the viscosity of water as a function of pressure is important in the interpretation of the effect of pressure on the electrical conductance of aqueous electrolytes. For this reason we have recently measured the viscosity of water at pressures up to 10,000 kg/cm2 relative to that at atmospheric pressure over the temperature range 2.2° C–100° C (ref. 1). The only other measurements at pressures greater than 900 kg/cm2 are those of Bridgman2; but these are of limited accuracy because of the experimental difficulties he encountered when he used his viscometer to investigate water.

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  1. 1

    Cappi, J. B., Ph. D, thesis, Univ. London (1964).

  2. 2

    Bridgman, P. W., Proc. Amer. Acad. Arts Sci., 61, 57 (1926).

  3. 3

    Cohen, R., Beibl. Ann. Phys., 45, 666 (1892).

  4. 4

    Hauser, L., Ann. Phys., 5, 597 (1901).

  5. 5

    Mozynski, J. R., Trans. Amer. Soc. Mech. Eng., 83 C, 111 (1961).

  6. 6

    Weber, W., Z. Angew. Phys., 15, 342 (1963).

  7. 7

    Bingham, E. C., and Jackson, R. F., Bull. Nat. Bur. Stand., (U.S.), 14, 75 (1918).

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    • J. B. CAPPI

    Present address: E. I. Du Pont de Nemours Co., Seaford, Delaware


  1. Department of Chemical Engineering and Chemical Technology, Imperial College of Science and Technology, London, S.W.7

    • K. E. BETT
    •  & J. B. CAPPI


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