Because humic acid is a collection of different organic substances, the collective name humic substances is also used. Humus is a natural substance and appears in both the soil (mud/peat, brown coal, sediments) and in the water.
Humic substances can be divided into three different components based on their solubility;
- Humic acid: the component of humus that is not soluble in water, with a very low pH value, that becomes soluble as the pH rises. Through a unique process we have managed to make the humic acid soluble.
- Fulvic acid: the humus component that is soluble at any pH value.
- Humin: the component of humus that is insoluble in water at any pH value.
The precise structure and properties of humus substances are highly dependent on the source from which they are isolated and the methods of extraction.