Click here for a downloadable, printable PDF version


An NPG Forum Paper
by Leon Kolankiewicz

Water – Much More Than Just the “Universal Solvent”

Chemists refer to water – H20 or H-O-H – as the “universal solvent,” because it is capable of dissolving a wide range of different substances. In fact, more substances or chemical compounds can dissolve in water than in any other liquid.
Water’s unique chemical composition and physical properties are what make it such an excellent solvent. Each water molecule possesses a “polar” configuration of one oxygen and two hydrogen atoms – one side (hydrogen) has a positive electrical charge while the other side (oxygen) has a negative charge. This permits the water molecule to become “attracted” to many other different types of molecules. Water can be so strongly attracted to a compound like salt (sodium chloride or NaCl), that it can override the attractive forces that bind together the sodium and chloride ions in a salt molecule and thus dissolve it (USGS 2015).

The magic molecule

But to biologists and ecologists, water is more – much, much more – than the universal solvent. It is the stuff of life. Water is both integral and indispensable to all life on Earth (and perhaps the universe): human and non-human, plant and animal, vertebrate and invertebrate, microscopic and macroscopic, prokaryotic and eukaryotic, multi-cellular and unicellular, terrestrial and aquatic alike. Water occurs both inside and outside of the cellular membranes and biochemical walls that demarcate the boundary between biotic (living) and abiotic (non-living) matter. Up to 90 percent or more of the weight of healthy, living plant and animal tissue is water. The human body overall consists of more than 60 percent water, while our blood is 92 percent water[…]

Read the entire paper here.

Leon Kolankiewicz

Leon Kolankiewicz is an “all-around ecologist” whose professional career spans three decades, three countries, and more than 30 states. He received a B.S. in forestry & wildlife management from Virginia Tech and an M.S. in environmental planning from the University of British Columbia (Vancouver, Canada). His career includes stints with the U.S. Fish and Wildlife Service, Alaska Department of Environmental Conservation, Alaska Department of Fish and Game, National Marine Fisheries Service, University of Washington, University of New Mexico, Orange County Environmental Management Agency, Carrying Capacity Network, and as a Peace Corps Volunteer in Honduras. As an environmental consultant, Leon has written, edited and managed many environmental impact statements on a variety of projects for multiple federal agencies and prepared more than 40 comprehensive conservation plans for national wildlife refuges from Alaska to the Caribbean. He has also authored reports examining the role of population growth in aggravating pressures on natural resources and the environment.
Like and Share:
Social media & sharing icons powered by UltimatelySocial