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Leonardite It is an oxidation product of lignite , associated with near-surface mining . [ 1 ] It is a rich source of humic acid (up to 90%) [ 2 ] and is used as a soil conditioner , as a stabilizer for ion-exchange resins in water treatment, [ 3 ] in the remediation of polluted environments and as a drilling additive. [ 4 ]
Depending on the source material, product quality varies. High quality oxidized lignite (brown coal), usually referred to as leonardite, is the best source material for extraction of large quantities of potassium humate. The less oxidized the coal, the less potassium humate extracted. Sources low in ash produce the best quality.
It is reducible to a fine powder by trituration, and if submitted to the action of a weak solution of potash, it yields a considerable quantity of humic acid. [39] Leonardite is an oxidized form of lignite, which also contains high levels of humic acid. [58] Jet is a hardened, gem-like form of lignite used in various types of jewelry. [42]
As a royal family fan, I'm always here for a new picture or portrait (King Charles's latest was particularly striking). Generally, they are quite posed and professional (they are royals, after all).
As is her family, including dad, Good Morning America co-anchor, Michael Strahan, twin sister Sophia, and their mom Jean Muggli (the couple divorced in 2006 after seven years of marriage ...
A space heater sold on Amazon is being recalled due to the potential to cause an "electric shock," resulting in a fire hazard, the U.S. Consumer Product Safety Commission (CPSC) announced Thursday ...
Maddingley Mine is a mine near Bacchus Marsh Railway Station, [1] Victoria, Australia, that contains a concentration of a particular brown coal formation called Leonardite. A relatively high altitude formation, Maddingley brown coal is distinguished as having 60% moisture content and a rich fulvic acid and humic acid content. [ 2 ]
Two Indian chemical companies have been indicted for allegedly importing ingredients for the highly addictive opioid fentanyl into the United States and Mexico, the U.S. Department of Justice said ...