The main component of humic acid

The main components of Humic acid are humic acid (HA), fulvic acid (FA) and humin (HM). In agriculture, humic acid fertilizers made with nitrogen, phosphorus, potassium and other elements (for example, humic acid can be made into ammonium humate fertilizer by neutralizing humic acid with ammonia) have the functions of increasing fertilizer efficiency, improving soil, stimulating crop growth, and improving the quality of agricultural products. In animal husbandry, sodium humate used for deer antler hemostasis, nitrohumate urea complex as cattle feed additive also has a good effect. In industry, sodium humate is used to adjust ceramic mud. Low-pressure boiler, locomotive boiler scale prevention; Humic acid ion exchanger is used to treat wastewater containing heavy metals. Sulfonated sodium humate used as cement water reducing agent; Humic acid products are also used as oil drilling mud treatment agents (see oilfield chemicals); Purified humic acid is used as cathode expansion agent of lead battery. Fulic acid structure contains a large number of phenol hydroxyl, carbonyl and other groups, so it can interact with oxides, metal ions and organic matter including toxic and harmful substances, thus affecting the environmental chemical behavior of these substances, including chemical degradation of organic matter, photolysis, biological absorption, migration and volatilization. Humin is acidic, absorbent and soluble due to the ionization of H+ in oxygen-containing functional groups. Its acidity is smaller than fulvic acid, slightly acidic, but the absorption (cation exchange capacity) is higher. Monovalent salts are soluble in water, while divalent and trivalent salts are insoluble in water. Humic acid plays an important role in the formation of soil structure.