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"Humic substances" is an umbrella term covering humic acid, fulvic acid and humin, which differ in solubility. By definition, humic acid (HA) is soluble in water at neutral and alkaline pH, but insoluble at acidic pH < 2. Fulvic acid (FA) is soluble in water at any pH. Humin is not soluble in water at any pH.
Fulvic acid is the genus that contains the matter that has the lowest molecular weight, is soluble in acids and alkalis, and is susceptible to microbial action. Humic acid is the genus that contains the intermediate matter that has medial molecular weight, is soluble in alkalis and insoluble in acids, and has some resistance to microbial action.
Aristolochic acid (contained in herbs in the genus Aristolochia e.g. Aristolochia serpentaria (Virginia snakeroot), Aristolochia reticulata (Texas snakeroot) and in Chinese herbs such as Aristolochia fangchi and Aristolochia manshuriensis [7] (banned in China and withdrawn from Chinese Pharmacopoea 2005; Stephania tetrandra and Magnolia ...
Potassium humate is used in agriculture as a fertilizer additive to increase the efficiency of fertilizers especially nitrogen- and phosphorus-based fertilizer inputs. Other salts of humic acid are manufactured, mainly sodium humate, which is used in animal health supplements. It also can be used in aquaculture.
[12] [13] [14] Humins can also be subjected to thermal treatments in order to form interesting solid materials, such as lightweight and porous humin foams. [ 15 ] [ 16 ] Overall, humins appear to improve the final properties of the materials although research is mainly at the proof-of-principle stage (early).
These disinfectants may react with naturally present fulvic and humic acids, amino acids, and other natural organic matter, as well as iodide and bromide ions, to produce a range of DBPs such as the trihalomethanes (THMs), haloacetic acids (HAAs), bromate, and chlorite (which are regulated in the US), and so-called "emerging" DBPs such as ...
Shilajit or mumijo, Mohave lava tube, 2018. Shilajit (Sanskrit: शिलाजीत; lit. ' conqueror of mountain ', 'conqueror of the rocks'), salajeet (Urdu: سلاجیت), mumijo or mumlayi or mumie [1] is an organic-mineral product of predominantly biological origin, formed at high altitudes of stony mountains, in sheltered crevices and cave.
They differ in chemical make-up, and use. The product form is in a bottle on store shelves. The product form gets used in research as a soil amendment. The natural form is more of an intellectual construct, tied to an evolving understanding of soil. Fulvic acid (The product, only exists in lab) – (The more common use of the term). Industrial ...