enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Magnesium carbonate - Wikipedia

    en.wikipedia.org/wiki/Magnesium_carbonate

    Magnesium carbonate, Mg CO 3 (archaic name magnesia alba), is an inorganic salt that is a colourless or white solid. Several hydrated and basic forms of magnesium carbonate also exist as minerals .

  3. Hydromagnesite - Wikipedia

    en.wikipedia.org/wiki/Hydromagnesite

    It is the most common cave carbonate after calcite and aragonite. [2] The mineral thermally decomposes, [5] [6] over a temperature range of approximately 220 °C to 550 °C, releasing water and carbon dioxide leaving a magnesium oxide residue. Hydromagnesite was first described in 1836 for an occurrence in Hoboken, New Jersey. [3]

  4. Artinite - Wikipedia

    en.wikipedia.org/wiki/Artinite

    Artinite is a hydrated basic magnesium carbonate mineral with formula: Mg 2 (CO 3)(OH) 2 ·3H 2 O. It forms white silky monoclinic prismatic crystals that are often in radial arrays or encrustations. It has a Mohs hardness of 2.5 and a specific gravity of 2. It occurs in low-temperature hydrothermal veins and in serpentinized ultramafic rocks.

  5. Magnesium compounds - Wikipedia

    en.wikipedia.org/wiki/Magnesium_compounds

    Magnesium hypochlorite and magnesium chlorite are unstable compounds, they are easy to hydrolyze, the former generates basic salt Mg(OCl) 2 ·2Mg(OH) 2 and the latter generates hydroxide Mg(OH) 2; magnesium chlorate can be obtained by reacting magnesium carbonate with chloric acid and crystallizing hexahydrate from solution, which can also be ...

  6. Lansfordite - Wikipedia

    en.wikipedia.org/wiki/Lansfordite

    It represents the pentahydrate of magnesium carbonate, and has the total formula MgCO 3 ·5H 2 O . [2] Landsfordite was discovered in 1888 in a coal mine in Lansford, Pennsylvania . It crystallizes in the monoclinic system (space group P2 1 /c [ 3 ] ) and typically occurs as colorless to white prismatic crystals and stalactitic masses. [ 4 ]

  7. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Resins are also available to remove the carbonate, bicarbonate, and sulfate ions that are absorbed and hydroxide ions that are released from the resin. [ 9 ] When all the available Na + ions have been replaced with calcium or magnesium ions, the resin must be recharged by eluting the Ca 2+ and Mg 2+ ions using a solution of sodium chloride or ...

  8. Magnesite - Wikipedia

    en.wikipedia.org/wiki/Magnesite

    Magnesite can also be formed via the carbonation of magnesium serpentine (lizardite) via the following reaction: 2 Mg 3 Si 2 O 5 (OH) 4 + 3 CO 2 → Mg 3 Si 4 O 10 (OH) 2 + 3 MgCO 3 + 3 H 2 O. However, when performing this reaction in the laboratory, the trihydrated form of magnesium carbonate (nesquehonite) will form at room temperature. [6]

  9. Dolomitization - Wikipedia

    en.wikipedia.org/wiki/Dolomitization

    Dolomitization is a geological process by which the carbonate mineral dolomite is formed when magnesium ions replace calcium ions in another carbonate mineral, calcite. It is common for this mineral alteration into dolomite to take place due to evaporation of water in the sabkha area. [1] Dolomitization involves substantial amount of ...