
Soluble humic acid, a odourless, non-toxic and dark black humate derived from high grade leonardite. it soluble in water,containing a large number of functional group as hydroxyl, carboxyl and phenolic hydroxyl,a slow action organic solid fertilizer with superior ion adsorption, exchange, complexation and chelation capacity.
| ITEM | STANDARD | ||
|---|---|---|---|
| Ⅰ | Ⅱ | Ⅲ | |
| Humic acid (dry basis) | ≥50.0% | ≥70.0% | ≥80.0% |
| Water Solubility | ≥90% | ≥98% | ≥98% |
| PH | 9.0-11.0 | 9.0-11.0 | 9.0-11.0 |
| Moistrue | <15 | <15 | <15 |
| Appearance | Fine Powder | ||
| Packing | 1Kg, 10Kg, 25Kg or upon request | ||