Water (H2O) is the third most
common molecule in the Universe (after Hydrogen and Carbon
dioxide), the most abundant substance on earth and the only
naturally occurring inorganic liquid. Water molecules ionize
endo-thermically due to electric field fluctuations caused by
nearby dipole resulting from thermal effects; a process that is
facilitated by exciting the Hydroxyl Ions which may separate but
normally recombine within a few femto seconds. Rarely (about once
every eleven hours per molecule at 25°C, or less than once a week
at 0°C) the localized hydrogen bonding arrangement breaks before
allowing the separated ions to return and the pair of ions (H+,
OH-) hydrate independently and continue their separate existence
for about 70 ms. As this brief period is much longer than the
timescales encountered during investigations into water’s
hydration properties, water is usually treated as a permanent
structure.
Hydrogen bonding occurs when an
atom of hydrogen is attracted by rather strong forces to two atoms
instead of only one, so that it may be considered to be acting as
a bond between them. In water the hydrogen atom is covalently
attached to the oxygen of a water molecule (about 492 kJ mol-1 but
has an additional attraction (about 23.3 kJ mol-1 to a neighboring
oxygen atom of another water molecule (about 1.3 kJ mol-1). Whilst
the molecular movements within water require the constant breaking
and reorganization of individual hydrogen bonds on a pico second
timescale, it is theorized that the instantaneous degree of
bonding is very high (>95%, at about 0°C to about 85% at 100°C and
gives rise to extensive networks, aided by bonding cooperatively.
There is likely to be a temperature-dependent competition between
the ordering effects of hydrogen bonding and the disordering
kinetic effects.
The hydrogen bonding patterns
are random in water; for any water molecule chosen at random,
there is equal probability (50%) that the four hydrogen bonds
(i.e. the two hydrogen donors and the two hydrogen acceptors) are
located at any of the four sites around the oxygen. Water
molecules surrounded by four hydrogen bonds tend to clump
together, forming clusters, for both statistical and energetic
reasons. Hydrogen bonded chains (i.e. O-H····O-H····O) are
cooperative; the breakage of the first bond is the hardest, and
then the next one is weakened, and so on. Thus unzipping may occur
with complex macromolecules held together by hydrogen bonding,
e.g. nucleic acids. A strong base at the end of a chain may
strengthen the bonding further. The cooperative nature of the
hydrogen bond means that acting as an acceptor strengthens the
water molecule acting as a donor. However, there is an
anti-cooperative aspect in so far as acting as a donor weakens the
capability to act as another donor, e.g. O····H-O-H····O. It is
clear therefore that a water molecule with two hydrogen bonds
where it acts as both donor and acceptor is somewhat stabilized
relative to one where it is either the donor or acceptor of two.
Breaking one bond weakens those around whereas making one bond
strengthens those around and this, therefore, encourages larger
clusters, for the same average bond density. However, this bonding
sequence is interrupted by the strong electro magnetic field
generated by EcoBeam
XL wherein
not only the larger molecular structures of up to 300 molecules
containing dissolved solids break into smaller ones but also
create ions that result in pure water molecular clusters that
reject dissolved solids. Weak hydrogen-bonding surfaces restrict
the hydrogen-bonding potential of adjacent water so that these
make fewer and weaker hydrogen bonds. As hydrogen bonds strengthen
each other in a cooperative manner, such weak bonding also
persists over several layers and causes locally changed
solvency. Hydrogen bonding carries information about solutes and
surfaces over significant distances in liquid water. In case of EcoBeam
XL it is
likely to last beyond 72 hours unless no major changes are brought
in the equilibrium through turbulence. In high temperature, the
precipitation of dissolved solids is accelerated. It is this
complex process that plays a role in altering the crystalline
behavior of dissolved solids, prevention of scale and corrosion in
water systems, better hydration and solvency of drinking water,
enhanced infra red permeability, better heat exchange, less
surface tension, lower working pressures for membranes and long
life of reverse osmosis systems.
Cations may induce strong
cooperative hydrogen bonding around them due to the polarization
of water O-H by cation-lone pair interactions (Cation+····O-H····O-H).
Total hydrogen bonding around ions may be disrupted however as if
the electron pair acceptance increases (e.g. in water around
cations) so the electron pair donating power of these water
molecules is reduced; with opposite effects in the hydration water
around anions. These changes, in the relative hydration ability of
salt solutions are responsible for the swelling and de-swelling
behavior of hydrophilic polymer gels. Additional ions created
through EcoBeam
XL makes ion
exchange systems more efficient with lesser contact times.