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    Hier (http://www.iav.ac.ma/agro/dss/chimiesol/images/CO3_FM.gif) een plaatje die de evenwichten van opgelost CO2 in de oceanen weergeeft:

    Bijschrift: Distribution of dissolved carbon species in seawater as a function of pH. Average oceanic pH is about 8.2.
    Although the predominance of HCO3 at he actually places the carbonate system close to a pH buffer minimum, it’s importance is maintained by the high dissolved inorganic carbon concentration.(Jacobsen et al. 2003)