CAS 7783-28-0
Di-Ammonium Phosphate
Di-Ammonium Phosphate (DAP 18-46-0) is the most widely used phosphate fertiliser, supplying nitrogen and phosphorus at sowing.
DAP is made by reacting phosphoric acid with ammonia and supplies 18% nitrogen and 46% phosphate (P₂O₅). Phosphorus drives root development and early growth, so DAP is usually applied at or before sowing as a basal fertiliser.
Its high nutrient content keeps freight cost per unit of phosphate low, and its hard, uniform granules store well and blend easily. Water-soluble phosphate content is a key quality measure because it determines how much phosphorus is immediately available to the crop.
- CAS number
- 7783-28-0
- Synonyms
- DAP
- Grades / forms
- 18-46-0
- Industries
- Feed & Fertilizers
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Request a quotation- Certificate of Analysis with every batch
- MSDS in destination format
- Toll manufacturing to your specification
- Private label packing available
Typical applications
- Basal fertiliser at sowing for cereals, pulses and oilseeds
- Bulk blending in NPK fertilisers
- Phosphorus correction in deficient soils
- Fire retardant formulations (technical grade)
Packing options
- 50 kg PP bags with PE liner
- Jumbo bags
- Bulk
Storage & handling
Store dry and covered. Fertilizer availability depends on origin and on export rules that can change by season. Origin, availability and lead time are confirmed with every quotation.
Documentation
Certificate of Analysis, MSDS, Certificate of Origin, dangerous goods declaration where applicable, and third-party pre-shipment inspection on request.
Typical specification
- Total nitrogen (N)
- ≥ 18%
- Total phosphate (P₂O₅)
- ≥ 46%
- Water-soluble P₂O₅
- ≥ 41%
- Moisture
- ≤ 1.5%
- Granule size
- 2–4 mm (≥ 90%)
Typical values for reference. The exact specification is agreed before the order and confirmed on the Certificate of Analysis for each batch.
Di-Ammonium Phosphate — frequently asked
18-46-0 means di-ammonium phosphate contains 18% nitrogen, 46% phosphate as P₂O₅ and 0% potash. It is the standard grade used worldwide.
DAP is usually applied as a basal fertiliser at or just before sowing, close to the seed row, because young roots need phosphorus early and phosphate moves very little in soil.
Fertilizer availability depends on origin and on export rules that can change by season. Origin, availability and lead time are confirmed with every quotation.
Yes. Chemtrade manufactures and exports Di-Ammonium Phosphate (CAS 7783-28-0) from Surat, Gujarat, India to more than 55 countries, for customers in Feed & Fertilizers. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Di-Ammonium Phosphate from Chemtrade includes a batch-specific Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
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