On the Galvanic Modification of Seawater
- 1 NRC Kurchatov Institute, Moscow, Russia
Abstract
Chemical properties of seawater are studied at forced shifting of Fermi level ε F in the band gap of liquid water due to deviation of its composition H 2 O 1 − z ( | z | < 10 − 13 ) from the stoichiometric one ( z = 0 ). It is shown that the hypo-stoichiometric state ( z > 0 ) of seawater emerges when Fermi level is shifted to the local electron level ε <sub> H 3 O</sub> of hydroxonium H 3 O + in galvanic cell with the strongly polarized anode and the quasi-equilibrium cathode. Then, each ε <sub> H 3 O </sub> is occupied by electron and hydroxonium radicals [H 3 O] together with hydroxide anions [OH − ] form in seawater hydrated electrons [(H 2 O) 2 − ] . The opposite hyper-stoichiometric state ( z < 0 ) of seawater is gotten in galvanic cell with the strongly polarized cathode and the quasi-equilibrium anode. Then, Fermi level is shifted to the local energy level ε <sub>OH </sub> for removing electron from each hydroxide ion OH − and forming hydroxyl radicals [OH] as strong oxidizers. It turned out that the ions of sodium and chlorine are connected into hydrates of sodium hypochlorite NaClO in this case.
- Shimkevich, A.L. (2017) The Basics of Electrochemical Modifying of Liquid Dielectrics. LAMBERT Academic Publishing, Dusseldorf.
- Do Couto, P.C., Guedes, R.C. and Costa Cabral, B.J. (2004) The Density of States and Band Gap of Liquid Water by Sequential Monte-Carlo and Quantum Mechanics Calculations. Brazilian Journal of Physics, 34, 42-47. https://doi.org/10.1590/S0103-97332004000100007
- Shimkevich, A.L. (2014) Electrochemical View of Band Gap of Liquid Water for Any Solution. World Journal of Condensed Matter Physics, 4, 243-249. https://doi.org/10.4236/wjcmp.2014.44027
- Do Couto, P.C. (2007) Understanding Electronic Properties of Water: A Theoretical Approach to the Calculation of the Adiabatic Band Gap of Liquid Water. PhD Thesis, Lisbon University, Lisbon.
- Bard, A.J., Parsons, R. and Jordan, J. (1985) Standard Potentials in Aqueous Solutions. Marcel Dekker, New-York.
- Mhitney, R.P. and Vivian, J.E. (1941) Solubility of Chlorine in Water. Industrial & Engineering Chemistry, 33, 741-744. https://doi.org/10.1021/ie50378a014
- Cappa, C.D., Smith, J.D., Messer, B.M., Cohen, R.C. and Saykally, R.J. (2006) The Electronic Structure of the Hydrated Proton: A Comparative X-Ray Absorptions Study of Aqueous HCl and NaCl Solutions. The Journal of Physical Chemistry B, 110, 1166-1171. https://doi.org/10.1021/jp0534582
- Kittel, C. and Kroemer, H. (1980) Thermal Physics. W.H. Freeman, San-Francisco, CA.
- Bandura, A.V. and Lvov, S.N. (2006) The Ionization Constant of Water over Wide Ranges of Temperature and Density. Journal of Physical and Chemical Reference Data, 35, 15-30. https://doi.org/10.1063/1.1928231
- Kaye, G.W.C. and Laby, T.H. (1986) Tables of Physical and Chemical Constants. 15th Edition, Longman, New-York.
- Shimkevich, A.L. (2018) The Lord Armstrong’s Experiment in the View of Band Theory of Liquid Water. Chemical Physics, 508, 45-50. https://doi.org/10.1016/j.chemphys.2018.03.020
- Moridis, G.J., Collett, T.S., Dallimore, S.R., Satoh, T., Hancock, S. and Weatherill, B. (2004) Numerical Studies of Gas Production from Several CH4 Hydrate Zones at the Mallik Site, Mackenzie Delta, Canada. Journal of Petroleum Science and Engineering, 43, 219-238. https://doi.org/10.1016/j.petrol.2004.02.015
- Fakharian, H., Ganji, H. and Naderifar, A. (2017) Desalination of High Salinity Produced Water Using Natural Gas Hydrate. Journal of the Taiwan Institute of Chemical Engineers, 72, 157-162. https://doi.org/10.1016/j.jtice.2017.01.025