humic acid


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Related to humic acid: fulvic acid

humic acid

A heteropolymeric mixture of organic molecules from biodegradable humis, peat and soil.

humic acid

the precipitate resulting from the addition of acid to a solution of HUMUS. Black in colour, it is insoluble in acids and organic solvents.
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Barton DHR, Schnitzer M (1963) A new experimental approach to the humic acid problem.
It may be shown by the arguments that follow that fulvic and humic acid fractions and hence these 2 products differ markedly in the average distance between nearest neighbour acidic groups in a molecule.
If compared on a weight basis, ferrihydrite, charcoal, and humic acid absorbed similar amounts of Ag at both equilibrium times; goethite adsorbed only 10% (after 4 days) and 20% (after 4 months) of the Ag that was adsorbed by ferrihydrite (Table 1).
Explore Report Description with Detailed TOC on "Global Humic Acid Market" at: https://www.
The effect of humic acid on the toxicity and bioavailability of trivalent chromium.
In the carbon biogeochemical cycle the transformation of living organic matter into the refractory part of organic matter (humic substances such as humic acids, fulvic acids, and humin) or humification is of key importance.
Bongiovanni MD, Lobartini JC (2006) Particulate organic matter, carbohydrate, humic acid contents in soil macro- and microaggregates as affected by cultivation.
First we formed them by traditional methods and then we tried one of our river sediment humic acids.
Conducted during the spring 2010 flu season, the trial found that subjects treated with humic acid showed a 107% improvement in their flu-related symptom scores.
Feng X J, Simpson AJ, Simpson MJ (2005) Chemical and mineralogical controls on humic acid sorption to clay mineral surfaces.
Substances of humic acid type prevent U937 cells from heat-induced arachidonic acid release.