Journal of Thermal Analysis and Calorimetry

, Volume 93, Issue 3, pp 1003–1011 | Cite as

Physico-chemical properties of aqueous extremely diluted solutions in relation to ageing

  • V. Elia
  • L. Elia
  • N. Marchettini
  • E. Napoli
  • M. Niccoli
  • E. Tiezzi
Article

Abstract

An extensive study has been carried out on aqueous ‘extremely diluted solutions’ (EDS). The employed experimental methodologies were well established physico-chemical techniques: flux calorimetry, conductometry, pH-metry, e.m.f. of suitable galvanic cell. The obtained results show that the preparation procedure significantly alters the physico-chemical behaviour of such solutions. Moreover, the analysis of the experimental data vs. the ‘arrow of time’ turned out to be astonishingly important. In fact some measured physico-chemical parameters evolve with time. Some experimentally measurable physico-chemical properties of the solvent water were largely affected by both time and the ‘life path’ of the samples. In particular, we evidenced two new experimental phenomena characterizing the EDS: the presence of a series of maximums in the measured electrical conductivity vs. the sample age; the dependence of said maximums on the volume of the EDS during its ageing.

All of these new experimental results clearly suggest the presence of an extended and ‘ordered’ dynamics involving the whole of the water molecules in the liquid. A temporal evolution, featuring three maximums in the course of four years of ageing and the dependence on the ageing volumes do not fit the framework of classical thermodynamics. It therefore seems appropriate to interpret these phenomena on the basis of the thermodynamics of dissipative structures, which are far from equilibrium systems.

Keywords

age of EDS dissipative structures EDS electrical conductivity extremely diluted solutions oscillating systems volume of EDS water 

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Copyright information

© Springer Science+Business Media, LLC. 2008

Authors and Affiliations

  • V. Elia
    • 1
  • L. Elia
    • 2
  • N. Marchettini
    • 3
  • E. Napoli
    • 1
  • M. Niccoli
    • 1
  • E. Tiezzi
    • 3
  1. 1.Department of ChemistryUniversity ‘Federico II’ of Naples, Complesso Universitario di Monte Sant’AngeloNaplesItaly
  2. 2.Department of PhysicsUniversity ‘Federico II’ of NaplesNaplesItaly
  3. 3.Department of Chemical and Biosystems ScienceUniversity of SienaSienaItaly

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