Humic Acid 51% (Granular)
Read the Humic Acid, Fulvic Acid, K2O, TOC, pH and bulk-density specifications for Humic Acid 51% Granular.
FCO Composition
| Ingredient | Requirement |
|---|---|
| Humic Acid (Source: American Leonardite) | Minimum 51.00% by weight |
| Fulvic Acid | Minimum 10.00% by weight |
| Potassium as K2O | Minimum 16.00% by weight |
| Tetrapotassium Pyrophosphate | Minimum 4.50% by weight |
| Lignosulphonic Acid | Minimum 14.22% by weight |
| Alkoxylated Fatty Acid Ester on Vegetable Base | Minimum 0.36% by weight |
| Water | Maximum 3.92% by weight |
| Total | 100% |
Finished-Product Specifications
| Parameter | Requirement |
|---|---|
| Humic Acid | Minimum 51% |
| Fulvic Acid | Minimum 10% |
| Bulk Density | 0.5–0.7 g/cc |
| pH (1% aqueous solution) | 10–12 |
| Total Organic Carbon | Minimum 25.45% |
How to Read the 51% / 10% / 16% Numbers
The technical should be read as a complete formulation, not only as '51% Humic Acid'. Humic Acid, Fulvic Acid, potassium as K2O and the other formulation components are separate specified elements. A commercial brand number such as '98' in Power Plus 98 must not be confused with the Humic Acid percentage.
Source / Process
American Leonardite is the source wording specified for the Humic Acid component in this technical. The source wording should be reproduced accurately without implying that the raw Leonardite/Humic source itself is manufactured in India.
How to Check a Product Using This Technical
- Match the exact technical: Humic Acid 51% (Granular).
- Check Humic Acid, Fulvic Acid and K2O values rather than one marketing number.
- Check TOC, pH and bulk density against the applicable specification.
- Check batch identity, legal company identity and authorised source.
- Use batch-specific COA/test data when available.
Frequently Asked Questions
Does Humic Acid 51% Granular mean 51% is the only important value?
No. Fulvic Acid, K2O, TOC, pH, bulk density and the rest of the formulation also matter.
What is the minimum Fulvic Acid?
Minimum 10%.
What is the minimum Total Organic Carbon?
Minimum 25.45%.
What is the bulk-density specification?
0.5–0.7 g/cc.
Is this the same as Humic Acid 19.6% Liquid?
No. They are separate liquid and granular technical formulations.
Last reviewed: 2026-10-05
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