Min. Order Reference FOB Price
20 Tons US$120.00-160.00 / Ton
Product Description
Humic acid is a kind of high polymer heterogeneous aromatic material contains hydroxyl, carboxyl, pjenolic hydroxyl and other active groups, it is weak acidity and insoluble in water but in alkaline. Humic acid is a powder or granular form of Leonardite/lignite, normally used as basic raw material ...