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humic acid
(redirected from Humic acids)

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Noun1.humic acid - a dark brown humic substance that is soluble in water only at pH values greater than 2; "the half-life of humic acid is measured in centuries"
humic substance - an organic residue of decaying organic matter
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Humus acids are presented by three fractions of humic acids and four fractions of fulvic acids.
Radiogenic uranium-234 in humus acids of graptolitic argillite/[TEXT ... by Bogdanov, R.; Ozernaya, S.; Pihlak, A.-T.; Timofeev, S. / Oil Shale
Many substances act as precursors of these compounds: humic acids have been widely studied for this reason (Li & Sun, 2001; Singer, 1999).
Evaluating Trihalomethane content in drinking water on the basis of ... by Ortega, Pedro / Journal of Environmental Health
The amount of humic acids is significantly smaller, while about 60-70% of them are bound with alkaline earths (Table 1).
Current primary pedogenesis on Devonian sandstone in southern ... by Reintam, Loit / Proceedings of the Estonian Academy of Sciences: Geology
 
 
 
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