Study on Extraction and Properties of Yellow Humic Acid

Yellow humic acid(or fulvic acid FA) was an active eonstituants of humic acid.Its national resources was more abendent.The authors extracted yellow humic acid from Hongyang 1# peat and degraded products.Its molecular weight was small and easily dissolved in water,acid basic and some organic solvent as acetones.Humic acid or peat degraded products more suited to hard water anti-floocantion.Its molecular contained many active groups and coordinated(or cheate) with many metal ions and pesticides.