Potassium Humate / Humic Acid Water-Soluble Organic Fertilizer for Brazil Sourcing
Buyer-facing sourcing profile for a China-origin potassium humate / humic acid organic fertilizer candidate supplied as black flake or powder, positioned for foliar and agricultural fertilizer applications. RFQs should confirm the exact product identity, CAS reference where applicable, humic acid and fulvic acid assay basis, potassium content, water solubility, moisture, pH, impurity limits, Brazil import documentation, and packing format before price comparison.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
Product identity: potassium humate / humic acid organic fertilizer derived from leonardite; confirm exact chemical identity and CAS reference if required by buyer documentationWater-soluble organic fertilizer / potassium humate / humic acid fertilizerCandidate for RFQ and specification verification
Product identity: potassium humate / humic acid organic fertilizer derived from leonardite; confirm exact chemical identity and CAS reference if required by buyer documentation
Appearance: black flake, shiny flake, black powder, or granule depending on grade
Total humic acid: advertised options include 55%, 60%, 65%, 70%, and up to 80%; confirm test method and dry-basis or as-is basis
Fulvic acid: advertised options include 8%, 10%, 12%, 15%, and other grade-dependent values; confirm analytical method
Potassium content: advertised around 2% in attributes and up to 8% in listed grade table; verify K or K2O reporting basis
Water solubility: advertised as 100%; confirm insoluble matter limit and filtration suitability for intended buyer specification
pH: advertised range 9–11; confirm test concentration and method
Moisture: advertised up to 10% max or 15% max depending on grade; confirm lot COA value
Raw material: leonardite; confirm origin consistency and heavy metal monitoring
HS code shown by source: 382499; buyer should verify final HS classification with importer or customs broker
Who uses this page
Target buyers
Brazil fertilizer importers
Agricultural input distributors
Water-soluble fertilizer formulators
Organic fertilizer blenders
Agrochemical and fertigation product manufacturers
Private-label fertilizer brands
Large farms or cooperatives sourcing bulk fertilizer inputs through licensed import channels
Before matching
Documents to check
CAS number, grade, assay, and impurity profile
SDS, COA, TDS, HS code, and transport classification
Destination-market import documents before supplier matching
Package and route
Packing notes
Standard packing listed as 20 kg or 25 kg export paper bags with inner liner
Alternative packing mentioned: 1 kg aluminum foil bags, PE bags, 500 kg bags, and FIBC bags
Confirm palletization, container loading quantity, bag labeling language, batch coding, and moisture-protection requirements
For Brazil-bound shipments, request export carton/bag markings aligned with importer instructions and local documentation needs
Ask whether samples are available for lab confirmation before bulk order
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Use context
Common applications
Raw material candidate for water-soluble organic fertilizer formulations
Fertilizer input for humic acid or potassium humate product lines
Private-label agricultural input sourcing after local compliance review
Bulk import comparison for Brazil-focused fertilizer distributors
Sample evaluation for solubility, assay, pH, moisture, and impurity benchmarking
How we compare
Sourcing options
Compare 55%–80% humic acid grades based on assay basis, solubility, and moisture rather than headline percentage only
Request both flake and powder samples if downstream formulation or dissolution speed matters
Select 20 kg or 25 kg bags for standard distribution; consider FIBC for bulk blending operations
Use third-party inspection or lab testing for first shipment and new production lots
Ask for Brazil-ready document set and importer-reviewed label content before confirming bulk order
Human review
Compliance notes
Request COA for each batch showing humic acid, fulvic acid, potassium, pH, moisture, water solubility, and insoluble matter where applicable
Request SDS, technical data sheet, packing list, commercial invoice, certificate of origin, and any fertilizer-related export documentation available from supplier
For Brazil, importer should verify MAPA, customs, labeling, fertilizer registration, and local agronomic classification requirements before purchase
Confirm whether the product is non-DG for sea or air transport under the supplier’s current SDS and carrier review; do not rely on marketplace text alone
Check impurity controls, especially heavy metals and undesirable inorganic residues, against buyer’s internal limits and destination-market requirements
Confirm whether the product is intended as fertilizer input only and not for food, feed, pharmaceutical, or medical use
Supplier audit status on the source page indicates third-party audit/verified business license, but this should not replace independent quality and compliance checks
No regulatory approval, import clearance, or agronomic performance guarantee should be assumed from the listing alone
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
What is the exact declared product name for export documents: humic acid, potassium humate, or another formulation?
Which CAS number or product identifier will appear on SDS and COA, if any?
Is total humic acid reported on dry basis or as-is basis, and which analytical method is used?
What are the current guaranteed values for humic acid, fulvic acid, potassium, moisture, pH, water solubility, and insoluble matter?
Can you provide recent batch COA, SDS, TDS, and heavy metal test report before shipment?
What grade is recommended for Brazil buyers needing fully water-soluble fertilizer raw material?
What impurity limits are controlled for lead, cadmium, arsenic, mercury, chromium, chloride, and insoluble residue?
Is the product compatible with the buyer’s target fertilizer registration category in Brazil?
Checks before quote
Request COA for each batch showing humic acid, fulvic acid, potassium, pH, moisture, water solubility, and insoluble matter where applicable
Request SDS, technical data sheet, packing list, commercial invoice, certificate of origin, and any fertilizer-related export documentation available from supplier
For Brazil, importer should verify MAPA, customs, labeling, fertilizer registration, and local agronomic classification requirements before purchase
Confirm whether the product is non-DG for sea or air transport under the supplier’s current SDS and carrier review; do not rely on marketplace text alone
Check impurity controls, especially heavy metals and undesirable inorganic residues, against buyer’s internal limits and destination-market requirements
Confirm whether the product is intended as fertilizer input only and not for food, feed, pharmaceutical, or medical use
Supplier audit status on the source page indicates third-party audit/verified business license, but this should not replace independent quality and compliance checks
No regulatory approval, import clearance, or agronomic performance guarantee should be assumed from the listing alone
Next step
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.
