Buyer-facing sourcing candidate for Monopotassium Phosphate, commonly requested as MKP 0-52-34, offered for fertilizer and industrial water-soluble phosphate applications. The listing claims crystalline/free-flowing material with 52% P2O5 and 34% K2O, low moisture, and low water insolubles, but the CAS number shown on the source page should be checked carefully against the intended product identity before RFQ or purchase.
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.
CAS to verify before order: MKP is commonly associated with CAS 7778-77-0; source page lists CAS 66455-26-3, which requires clarificationInorganic phosphate fertilizer / water-soluble MKP candidateNeeds CAS and grade verification before RFQ
Product name to confirm: Monopotassium Phosphate / MKP / Potassium Dihydrogen Phosphate
Formula to confirm: KH2PO4
CAS to verify before order: MKP is commonly associated with CAS 7778-77-0; source page lists CAS 66455-26-3, which requires clarification
Grade/concentration: MKP 0-52-34, fertilizer grade or industrial grade to be confirmed
Appearance: crystal or crystalline powder, free-flowing
Main content as KH2PO4: source table states 99.9% min specification with 99.37% test result; inconsistency should be clarified
Phosphorus as P2O5: source claims about 52%
Potassium as K2O: source claims about 34%
Moisture: source claims 0.2% max, test result 0.05%
Water insoluble matter: source claims 0.1% max, test result 0.02%
pH value: source claims 4.4-4.8, test result 4.5
Chloride, sodium, heavy metals, arsenic, cadmium, lead, mercury, fluorides, and insoluble impurities should be requested in COA if relevant to destination market or application
Large farms or irrigation/fertigation supply buyers working through licensed importers
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
Source listing indicates transport package is customizable; confirm standard export packing before quotation
Common RFQ point: 25 kg woven bag, kraft bag, PE-lined bag, jumbo bag, or palletized packing availability
Confirm moisture barrier, inner liner, bag marking, batch number, net/gross weight, and pallet wrapping
Ask whether neutral export packaging, buyer label, or OEM marking is available and whether additional charges apply
Confirm container loading quantity for 20 ft and 40 ft containers based on selected packing and palletization
Request photos of current packing, label, and recent export shipment if available
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
Water-soluble fertilizer formulation where MKP 0-52-34 is specified
NPK blending and phosphate-potassium nutrient supply
Fertigation and foliar fertilizer supply chains subject to local agronomic and registration requirements
Industrial phosphate sourcing where KH2PO4 identity and impurity limits are verified
Export procurement programs requiring COA/SDS and batch traceability
How we compare
Sourcing options
Request quotation for 25 kg bags, palletized export packing
Request quotation for jumbo bags for bulk fertilizer blending
Request pre-shipment sample with matched COA before bulk order
Request third-party inspection before container loading
Request destination-specific document set: SDS, COA, TDS, COO, invoice, packing list, and bill of lading draft
Compare offers by confirmed CAS, guaranteed assay, P2O5/K2O basis, insolubles, moisture, heavy metals, packing, and freight terms
Ask for FOB China port, CFR, or CIF pricing depending on buyer logistics control
Human review
Compliance notes
Do not rely on the source CAS number without verification; request SDS, COA, TDS, and product identity statement matching the commercial invoice and packing list
Confirm whether the material is sold as fertilizer grade, industrial grade, technical grade, or food/feed-related grade; do not assume suitability for regulated end uses
Check destination-country fertilizer registration, import licensing, customs classification, and labeling requirements with local authorities or importer before shipment
Source page lists HS Code 31052000; buyer should confirm the correct HS code with customs broker for MKP and destination use
Request latest SDS in GHS format and confirm DG status for sea/air/road transport; buyer should verify with carrier and local rules
Request impurity profile and heavy-metal limits for markets with fertilizer contaminant restrictions
No regulatory approval, registration, organic certification, or food/feed/pharma suitability should be assumed from marketplace claims
Confirm availability of ISO or other certificates directly from supplier and check certificate scope, issuer, validity, and product coverage
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.
Monopotassium PhosphateMKP 0-52-34Potassium Dihydrogen PhosphateKH2PO4CAS 7778-77-0water soluble fertilizerphosphate fertilizerpotassium phosphateindustrial grade MKPfertilizer grade MKPMAP MKP exportNPK raw material
Related product options
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Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.
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
Please confirm the exact product identity, formula, and correct CAS number for this MKP material.
Is the offered material fertilizer grade, industrial grade, technical grade, or another grade?
Can you provide a recent batch COA showing KH2PO4, P2O5, K2O, moisture, water insolubles, pH, chloride, sodium, heavy metals, and particle size?
Why does the listing show CAS 66455-26-3 instead of the commonly referenced MKP CAS 7778-77-0?
What is the guaranteed specification versus typical test result for KH2PO4 content?
Are P2O5 52% and K2O 34% guaranteed minimums?
What particle size options are available: crystal, powder, fine powder, or granular?
What packaging options are available for export, and what is the container loading quantity?
Checks before quote
Do not rely on the source CAS number without verification; request SDS, COA, TDS, and product identity statement matching the commercial invoice and packing list
Confirm whether the material is sold as fertilizer grade, industrial grade, technical grade, or food/feed-related grade; do not assume suitability for regulated end uses
Check destination-country fertilizer registration, import licensing, customs classification, and labeling requirements with local authorities or importer before shipment
Source page lists HS Code 31052000; buyer should confirm the correct HS code with customs broker for MKP and destination use
Request latest SDS in GHS format and confirm DG status for sea/air/road transport; buyer should verify with carrier and local rules
Request impurity profile and heavy-metal limits for markets with fertilizer contaminant restrictions
No regulatory approval, registration, organic certification, or food/feed/pharma suitability should be assumed from marketplace claims
Confirm availability of ISO or other certificates directly from supplier and check certificate scope, issuer, validity, and product coverage
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.
