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2. Water softening - Wikipedia

   en.wikipedia.org/wiki/Water_softening

   Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes

3. Molten-salt battery - Wikipedia

   en.wikipedia.org/wiki/Molten-salt_battery

   The technology was proposed in 2009 based on magnesium and antimony separated by a molten salt. [31] [32] [33] Magnesium was chosen as the negative electrode for its low cost and low solubility in the molten-salt electrolyte. Antimony was selected as the positive electrode due to its low cost and higher anticipated discharge voltage.

4. Bittern (salt) - Wikipedia

   en.wikipedia.org/wiki/Bittern_(salt)

   Bitterns contain magnesium, calcium, and potassium ions as well as chloride, sulfate, iodide, and other ions. [ 2 ] [ 3 ] Bittern is commonly formed in salt ponds where the evaporation of water prompts the precipitation of halite.

5. Solvated electron - Wikipedia

   en.wikipedia.org/wiki/Solvated_electron

   Weyl in 1864 and C. A. Seely in 1871 used liquid ammonia, whereas Hamilton Cady in 1897 related the ionizing properties of ammonia to that of water. [ 21 ] [ 22 ] [ 23 ] Charles A. Kraus measured the electrical conductance of metal ammonia solutions and in 1907 attributed it to the electrons liberated from the metal.

6. Low calcium, magnesium levels tied to poorer cognitive ... - AOL

   www.aol.com/low-calcium-magnesium-levels-tied...

   Older adults with calcium and magnesium deficiencies also had poorer cognitive performance compared to peers with adequate micronutrient levels, a recent study has found.

7. Metal–air electrochemical cell - Wikipedia

   en.wikipedia.org/wiki/Metal–air_electrochemical...

   The use of a number of ionic aqueous electrolytes in magnesium–air devices ... Calcium 2990 4180 3.12 ... High-temperature liquid Sn–air energy storage ...