• ionic
  • For ions in solution Shannon's "effective ionic radius" is the measure most often used. (wikipedia.org)
  • Arsenic reacts with metals to form arsenides, though these are not ionic compounds containing the As3− ion as the formation of such an anion would be highly endothermic and even the group 1 arsenides have properties of intermetallic compounds. (wikipedia.org)
  • form
  • They are also found together at the foot of the reactivity series , which means that the metals are not easily oxidised to form positive ions. (h2g2.com)
  • It burns in oxygen to form arsenic trioxide and arsenic pentoxide, which have the same structure as the more well-known phosphorus compounds, and in fluorine to give arsenic pentafluoride. (wikipedia.org)
  • oxygen
  • citation needed] The production of free oxygen by cyanobacterial photosynthesis eventually led to the oxygen catastrophe that ended Earth's second atmosphere and brought about the Earth's third atmosphere (the modern atmosphere) 2.4 billion years before the present. (wikipedia.org)
  • produce
  • Fe3+ ions produce golden-yellow color, and when both Fe2+ and Fe3+ are present, the color is a darker blue as in maxixe. (wikipedia.org)
  • Liquids or other fluids to be purified enter the purification device and, under the influence of an electric field, are treated to produce an ion-depleted liquid. (google.com)
  • water
  • A metal ion in aqueous solution (aqua ion) is a cation, dissolved in water, of chemical formula [M(H2O)n]z+. (wikipedia.org)
  • In backcountry areas of the United States and Canada they are sometimes present in sufficient quantity that water treatment is justified for backpackers, although this has created some controversy. (wikipedia.org)
  • Co-current deionization refers to the original downflow process where both input water and regeneration chemicals enter at the top of an ion exchange column and exit at the bottom. (wikipedia.org)
  • Counter-current deionization comes in two forms, each requiring engineered internals: Upflow columns where input water enters from the bottom and regenerants enter from the top of the ion exchange column. (wikipedia.org)
  • Mount Sannine was given the honor of being enthroned as the " Palace of Water " crowned with eternal snow. (wn.com)
  • There are still many dangerous contaminants present in our water, even after it has gone through municipal water treatment facilities. (wn.com)
  • found
  • Abraum, in natural history, a term given by some writers ies of red clay found in the Isle of Wight, and used by our artizans to impart a fine red colour to new mahogany wood. (chestofbooks.com)
  • Ammonium salts are found distributed through fertile soil and in seawater. (wikipedia.org)
  • lower
  • Because regenerant chemicals are dilute when they encounter the bottom or finishing resins in an ion exchange column, the product quality is lower than a similarly sized counter-flow column. (wikipedia.org)
  • exchange
  • The process is still used, and can be maximized with the fine tuning of the flow of regenerants within the ion exchange column. (wikipedia.org)
  • Counter-current deionization is the more attractive method of ion exchange. (wikipedia.org)
  • 19. The system for purifying a liquid of claim 16 , wherein the apparatus further comprises an ion exchange compartment exposed to a liquid within the pressure vessel. (google.com)
  • charge
  • The second coordination sphere is not a well defined entity for ions with charge 1 or 2. (wikipedia.org)
  • The strength of the M-O bond tends to increase with the charge and decrease as the size of the metal ion increases. (wikipedia.org)
  • Reaction center chlorophyll-protein complexes are capable of directly absorbing light and performing charge separation events without the assistance of other chlorophyll pigments, but the probability of that happening under a given light intensity is small. (wikipedia.org)
  • chemical
  • The electron flow produced by the reaction center chlorophyll pigments is used to pump H+ ions across the thylakoid membrane, setting up a chemiosmotic potential used mainly in the production of ATP (stored chemical energy) or to reduce NADP+ to NADPH. (wikipedia.org)
  • properties
  • Some methods supply information of a static nature, a kind of snapshot of average properties, others give information about the dynamics of the solution. (wikipedia.org)
  • tank
  • Hi i am hoping to convert my fish only tank into a reef tank soon re-using the substrate (coral sand) and tufa rock from my present tank. (reeffrontiers.com)
  • In my 100 gallon main tank, it is obvious when the larvae are present as the presence of a swarm of shrimp larvae induces the Anthias to go into a plankton feeding frenzy. (reefkeeping.com)
  • liquid
  • Understanding of the nature of aqua ions is helped by having information on the nature of solvated cations in mixed solvents and non-aqueous solvents, such as liquid ammonia, methanol, dimethyl formamide and dimethyl sulfoxide to mention a few. (wikipedia.org)
  • It is a colourless liquid that gives off fumes in moist air and has a characteristic choking odour. (blogspot.com)