Product identity and grade
State the exact identity, grade, guaranteed nutrient analysis, form, application, quantity, packing and destination.
Fertilizer grade · Phosphate fertilizer salt · DAP
Fertilizer Grade Diammonium Phosphate (DAP)
Diammonium phosphate is a concentrated ammonium phosphate fertilizer supplying nitrogen and phosphorus for direct soil application and fertilizer blending.
- Identity
- CAS 7783-28-0; (NH4)2HPO4
- Role
- Nitrogen and phosphorus fertilizer
- Nutrient basis
- Confirm guaranteed analysis
- Specification
- Contact sales
Product image · confirm grade and packaging when ordering
Share guaranteed analysis, form, fertilizer use, quantity, destination and documents.
GradeFertilizer application
SpecificationAvailable privately from sales
QualificationAnalysis and trials required
ComplianceLabel and market specific
Direct product answer
What is fertilizer-grade DAP?
Diammonium phosphate is a concentrated ammonium phosphate fertilizer supplying nitrogen and phosphorus for direct soil application and fertilizer blending.
18-46-0 is a common fertilizer designation; supplied analysis varies Chemical identity alone does not establish fertilizer grade, nutrient guarantee, solubility, crop suitability or market registration. Compare the offered source against the required label and agronomic program.
Procurement snapshot
- Product
- Diammonium Phosphate (DAP)
- Identity
- CAS 7783-28-0; (NH4)2HPO4
- Form
- Granular or crystalline grade—confirm
- Function
- Nitrogen and phosphorus fertilizer
- Application review
- Crop, soil, formula and market specific
- Product specification
- Request the offered grade’s specification
Procurement checklist
How to source fertilizer-grade DAP in bulk
Compare the offered grade, application requirements and commercial terms before requesting a sample or placing an order.
Quotation and delivery basis
Compare source-specific specification, nutrient declaration, current COA, packing, Incoterm and delivery window.
Application and process requirements
Where relevant, confirm solubility, insolubles, source-water compatibility, stock concentration and crop program.
Technical and quality documents
Request SDS, private specification or TDS, representative COA, batch COA, traceability and destination-market files.
Application screening
DAP fertilizer application guide
These are qualification areas, not universal crop recommendations, nutrient rates, label approvals or guaranteed agronomic outcomes.
Soil-applied NP programs
Use the local agronomic recommendation to define the nitrogen and phosphorus requirement. Include contributions from other fertilizers and soil reserves.
NPK bulk blends
Match granule properties to the blend and handling system. Assess segregation and storage behavior before approving a new source.
Pre-plant nutrient supply
Select the product within a soil-test-based nutrient program. Placement and application timing require local agronomic judgment.
Fertilizer distribution
Specify storage climate, bag requirements and handling route. Inspect physical quality after representative transport and storage.
Technical selection
Questions to resolve before approving DAP
Guaranteed nutrient analysis
Request the offered grade's nitrogen and phosphorus declaration, including the P2O5 basis and analytical methods. Do not assume a standard N–P grade without its specification.
Granule quality
Agree size distribution, hardness, fines, moisture and caking criteria. Check compatibility with the other components of a bulk fertilizer blend.
Source qualification
Review water-insoluble matter, free ammonia and relevant impurity limits for the intended grade. Keep batch acceptance criteria in the supply agreement.
Agronomic and market fit
Provide the crop, soil-test interpretation and application method. Confirm the fertilizer declaration and destination registration before accepting the supply.
Private technical documentation
Request the current DAP fertilizer specification
Bespring Chemical does not publish product specifications for this fertilizer raw material online. Contact sales for the current source-specific specification or TDS and confirm its revision, analytical methods and acceptance criteria.
Product documents
Request the signed current specification or TDS, SDS, test methods, representative COA and batch COA.
Nutrient and market documents
Confirm guaranteed analysis, expression basis, labeling, fertilizer registration, trace elements and destination requirements.
Authoritative context
Review FAO plant-nutrition guidance, FAO fertilizer specifications guidance and NIH PubChem chemical records. Agronomic suitability and fertilizer registration remain crop, soil, formulation and jurisdiction specific.
Agronomic note: This supplier page does not prescribe nutrient rates or establish crop suitability. Base fertilizer selection and application on soil, water and tissue data, qualified agronomic advice, compatibility testing, the approved label and local environmental requirements.
Storage and handling
Handle DAP under the current SDS
- StorageKeep packaging closed and protect the exact grade from moisture, contamination and incompatible materials.
- CompatibilityBench-test dissolution and mixing order; concentrated calcium, magnesium or micronutrient solutions may precipitate with phosphate.
- Workplace controlsFollow the current SDS for dust control, PPE, spill response, transport and disposal.
Fertilizer buyer questions
DAP fertilizer FAQ
What is DAP used for in fertilizer products?
Diammonium phosphate is a concentrated ammonium phosphate fertilizer supplying nitrogen and phosphorus for direct soil application and fertilizer blending. Use should follow soil or tissue testing, crop recommendations and applicable fertilizer rules.
What nutrient grade should buyers request for DAP?
18-46-0 is a common fertilizer designation; supplied analysis varies. Request the current source-specific guaranteed analysis and confirm whether nutrients are expressed as N, P2O5 and K2O or on another legally required basis.
Why is there no public DAP specification?
Bespring Chemical does not publish fertilizer product specifications online. Contact sales for the current source-specific specification or TDS, analytical methods and representative COA.
Is this the same as food-grade DAP?
No grade is established by the chemical name alone. Fertilizer, food and technical products have different intended uses, documentation, impurity controls and regulatory requirements.
What should a DAP fertilizer RFQ include?
Provide the exact identity and form, required guaranteed analysis, fertilizer application, quantity, packing, destination, registration documents, Incoterm and delivery date.
Content updated 2026-09-13.
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Contact the Sales Team
Discuss a private specification, documents, sample and commercial requirements.
Supply Services
Review sourcing and export support for international chemical procurement.
Application and selection guides: MAP & DAP Raw Materials for Compound Fertilizer. Use the guides for process questions; confirm the exact supplied grade separately.
Specification-led fertilizer sourcing
Request a DAP fertilizer specification and quote
Share guaranteed analysis, grade and form, fertilizer application, critical limits, quantity, packing, destination and document list.
- Current private specification or TDS
- Representative and batch COA
- SDS, packing and transport confirmation
- Source-specific documents on request
Product documents
Request documents
Tell us your grade and destination market so we can confirm which documents are available for your order.
An external reference is not a batch certificate or a Bespring product specification.