Tag: humic acids

Humic Acid

Humic Acids and Humic Substance and Leonardite

Leonardite and Humic Acid It is theorized that Leonardite shale originated from trees and other vegetation, which grew during the carboniferous period when most of North America was a tropical type forest. Over the ages, the vegetation underwent compaction and heating, slowly carbonizing and forming coal. Through this compaction, organic acids and esters present in […]

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