pH-value (potassium chloride)
pH (KCl)
The pH-value in a suspension of sample material and a diluted potassium solution corresponds to the potential acidity.
The hydrogen-cations adsorbed to the sample constituents are replaced by potassium cations and are therefore measurable in the suspension. The resulting pH is about 0.3-1.0 units lower compared to the pH in a suspension with pure water. The potential acidity is important because cation exchange may also occur under natural conditions and lead to significant drops in pH.
Specimen
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Soil is livelihood and biosphere for humans, animals, plants and soil organisms. All the substances brought in are transported, transformed and/or accumulated in the soil.
Sampling area
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The only high mountains national park in Germany and an area of the Limestone Alps with international relevance
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Important, old-industrialised conurbation in Germany.
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Main water divide between the North- and Baltic Sea
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Germany's first national park
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Region in the chemical triangle of Central Germany
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Germany's largest forest national park
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Second highest and largest low mountain range in Northern Germany
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Germany's largest connected forest area in a range of low mountains
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The Upper Bavarian Tertiary Uplands are a part of the Southern German Molasse Basin
Sampling period
2002 - 2019