Properties：
Molecular formula: c9h8k2o4
Potassium humate is a kind of heterogeneous aromatic hydroxyl carboxylate with the appearance of black particles or powdery solid. It is extracted by KOH liquid reaction after fine separation of lignite. It is soluble in water and alkaline, and contains active groups such as carboxyl and phenolic hydroxyl groups. Potassium humate is a kind of high-efficiency organic potassium fertilizer, because the humic acid is a kind of biological active agent, which can improve the content of soil available potassium, reduce the loss and fixation of potassium, increase the absorption and utilization rate of potassium by crops, and also have the functions of improving soil, promoting crop growth, improving crop resistance, improving crop quality, and protecting agricultural ecological environment; it is also associated with urea and phosphorus In addition, potassium humate can also be used as a treatment agent for oil drilling fluid, which mainly plays a role in preventing wellbore collapse.

Application：
Humic acid and its products have many uses. In agriculture, humic acid fertilizer (for example, ammonium humate fertilizer can be made by neutralizing humic acid with ammonia) can increase fertilizer efficiency, improve soil, stimulate crop growth, and improve the quality of agricultural products. Nitro humic acid can be used as an acid regulator for rice seedling raising; magnesium humate, zinc humate and iron Urea Humic acid are used as supplementary soil The results showed that soil magnesium deficiency, corn zinc deficiency, fruit tree iron deficiency had good effect; humic acid and herbicide, atrazine and other pesticides could improve the efficacy and inhibit residual toxicity; sodium humate was effective in the treatment of Apple Tree Canker. In animal husbandry, sodium humate is used for hemostasis of pilose antler, and nitro humic acid urea complex is also effective as cattle feed additive. In industry, sodium humate is used for adjusting ceramic mud; anti scaling of low-pressure boiler and locomotive boiler; ion exchanger of humic acid is used to treat wastewater containing heavy metals; sodium sulphonate is used as cement water reducer; humic acid products are also used as oil drilling mud treatment agent (see oilfield chemicals); purified humic acid is used as cathode expansion agent of lead-acid battery.