- Mineral Source Potassium Fulvate Powder II
- Product Overview
- Key Benefits
- Technical Specification
- Form & Solubility
- Type I or Type II? Choose on the number you actually buy on
- Applications & Dosage
- Packaging & Storage
- Successful Cases
- Frequently Asked Questions
- Also Available in This Family
- Need a quotation or a sample?
Mineral Source Potassium Fulvate Powder II
Fine-Mesh Value Grade — More Humic Acid, Lower Cost
60–80 mesh powder · 30% fulvic acid · 55% humic acid · 10% K₂O · 99% water soluble
Product Overview
Mineral Source Potassium Fulvate Type II is extracted from leonardite, a young oxidized lignite rich in humic substances. It occupies a different point on the extraction spectrum from our Type I line: higher total humic acid (55% min), moderate fulvic acid (30% min), and a more accessible price per tonne. Same mine. Different balance.
Mineral Source Potassium Fulvate Powder II is the fine-mesh grade of our Type II line — 60–80 mesh black powder engineered for compound NPK blending, powdered soil conditioners, and any application where rapid wetting and even distribution matter.
At 60–80 mesh, this powder disappears into a MAP/DAP/urea blend just like Type I Powder does. The chemical difference sits in the assay: 30% fulvic acid and 55% humic acid (versus Type I’s 55/50 split). What you’re trading is some of that premium fulvic fraction — which drives fast leaf-response and micronutrient chelation — for a lower price point and a heavier dose of humic acid that builds soil structure over time.
If your product sits in a bag as a dry blended fertilizer, a powdered soil amendment, or an NPK coating, the humic-heavy profile of Type II Powder often makes more economic sense than paying for fulvic acid that won’t express itself until the material dissolves in soil moisture weeks later.
Key Benefits
60–80 mesh blends perfectly
Matches the particle-size band of MAP, DAP, and urea powders. No segregation in the blend, no sifting to the bottom of the pile.
55% humic acid — more than most competitors’ standard grade
When your label claim or formulation target is ‘high humic content’, Type II hits it with room to spare, usually at a lower cost than sourcing a separate humic concentrate.
99% soluble when it counts
Full solubility means once irrigation water or soil moisture hits it, everything goes into solution. No insoluble residue to clog emitters or leave grit in the tank.
Direct replacement path from Type I
If you’ve been using Type I Powder and your procurement team is pushing for cost reduction, Type II Powder is the first product to evaluate — same mesh, same handling, different assay, different invoice amount.
Technical Specification
| Parameter | Specification | Test standard |
|---|---|---|
| Appearance | Black shiny powder, 60–80 mesh | Visual |
| Fulvic acid (dry basis) | 30.0% min | HG/T 5334-2018 |
| Humic acid (dry basis) | 55.0% min | HG/T 3278-2011 |
| Potassium as K₂O (dry basis) | 10.0% min | GB/T 33804-2017 |
| pH (1:100) | 9.0 – 10.0 | GB/T 33804-2017 |
| Water solubility (dry basis) | 99.0% min | HG/T 3278-2018 |
Specification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis and tested against the stated Chinese industry standards. Every shipment travels with its own COA stating the tested values.
Need the full Certificate of Analysis, MSDS, or TDS for your formulation or tender file?
Request COA / MSDS / TDSSpecification values are guaranteed minimums on a dry basis, taken from the batch Certificate of Analysis. Every shipment travels with its own COA stating the tested values.
Form & Solubility
Form: free-flowing black powder, 60–80 mesh. Fine enough to disperse evenly through an NPK blend, coarse enough to keep dust manageable at the intake hopper.
In water: wets rapidly — the 60–80 mesh particle size gives it far more surface area than flakes, so it goes into solution faster if you have any agitation at all. In still water it will settle before dissolving completely; give it a stir.
Dust: expect some. This is a fine powder. Standard PPE (mask, goggles) and local extraction at the weighing station are recommended — same housekeeping as any 80-mesh material.
In the blend: excellent anti-segregation performance at this mesh size. The particles lock in between coarser NPK prills and stay put during transport and spreading.
Type I or Type II? Choose on the number you actually buy on
| Grade | Form | Fulvic acid | Humic acid | K₂O | Best for |
|---|---|---|---|---|---|
| Flakes II | 2–3 mm flake | 30% min | 55% min | 10% min | Compound NPK, liquid fertilizer, water-run |
| Powder II (this product) | 60–80 mesh powder | 30% min | 55% min | 10% min | Powder blending, WS fertilizer base |
| Sodium-Free Flakes II | 2–3 mm flake | 30% min | 55% min | 15% min | Closed hydroponics, saline & sodic soil |
| Round Granule | 4–6 mm round granule | 10% min | 25% min | 2–5% | Bulk-blended NPK, organic fertilizer base |
Type I grades (Powder I, Flakes I, Micro Granule I, Extruded Granules I, Sodium-Free Flakes I) run 50–55% fulvic acid with 50% humic acid — see the Type I range if fulvic acid content is your buying criterion.
Applications & Dosage
Powder II targets applications where fine particle size and blend uniformity matter:
| Application | How to use | Rate |
|---|---|---|
| Compound NPK / SSP / DAP blending | Blend at 2–8% into powdered or granular NPK formulations. The 60–80 mesh size prevents segregation. | 2–8% of blend |
| Powdered soil conditioner / amendment | Mix with amino acids, bio-fertilizers, or other organics for a multi-functional dry amendment. | 5–20% of formulation |
| Coating for urea / NPK granules | Apply as a humic coating layer in a coating drum. Powder adheres well to prill surfaces. | 1–3% coating rate |
| Suspension fertilizer | Holds in suspension better than flakes due to finer particle size. Use with a good agitator. | 3–6% of suspension |
Packaging & Storage
| Pack size | Description |
|---|---|
| 1 kg / 5 kg / 10 kg | Printed aluminium foil bag — retail and sample size |
| 20 kg / 25 kg | Woven or paper bag with inner PE liner |
| 20 kg / 25 kg | Colour-printed PP/PE bag with inner liner — private label ready |
| 1000–1100 kg | Jumbo bag with discharge spout |
Storage: Store in a cool, dry, well-ventilated place. Keep bags sealed after opening — powder is the most hygroscopic form we make. In humid climates, use opened bags promptly or transfer to a sealed bin. Shelf life: 2 years unopened.
Custom packaging, private-label printing and OEM specifications are available on request. Packaging photos are available in the product gallery.
Successful Cases
NPK blending plant, Shandong
Replaced a competitor’s 40% fulvate powder with Type II Powder at 6% inclusion in a 15-15-15 NPK. Lab tests showed the 55% humic content delivered equivalent CEC improvement to their previous raw material at roughly 14% lower cost per tonne.
Explore agriculture applications → Agriculture · Powder BlendingSoil amendment exporter, Malaysia
Blends Type II Powder with composted chicken manure and amino acids for a premium ‘humic-rich organic amendment’. The 60–80 mesh size integrates smoothly into their double-ribbon mixer.
Explore agriculture applications →Full case studies with crop data are published in our application sectors.
Frequently Asked Questions
How does Type II Powder compare to Type I Powder chemically?
Type I Powder: 55% fulvic / 50% humic / 12% K₂O. Type II Powder: 30% fulvic / 55% humic / 10% K₂O. Same mesh (both 60–80 mesh range), same solubility (~99%). Type II gives you more humic acid per tonne at a lower price; Type I gives you more fulvic acid for rapid-action applications.
Which should I choose for foliar sprays?
For foliar programs where speed of uptake matters, Type I (55% fulvic) is the stronger choice — fulvic acid is the fraction that moves quickly through leaf tissue and chelates micronutrients. Type II can work in foliar blends, but you may need a slightly higher inclusion rate or a fulvic booster.
Is the 60–80 mesh fineness guaranteed?
We specify 60–80 mesh as the standard output from our milling line. If you need a tighter distribution (e.g., 95% through 80 mesh), tell us at enquiry stage — we can adjust the mill classification for volume orders.
Does it clump in the bag in summer?
Less than you’d expect — the shiny (oxidized) surface of Type II powder resists caking better than dull powders. That said, any 80-mesh material in a hot warehouse will eventually pick up moisture. Stack pallets off the floor, keep containers ventilated, and rotate stock FIFO.
Need a quotation or a sample?
Tell us your application, target market and packaging — we will come back with specification, price and lead time.
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