DIAMMONIUM PHOSPHATE- ▸ Fertilizer: Nitrogen-phosphorus plant nutrient
- ▸ Fermentation: Yeast nutrient in brewing and winemaking
- ▸ Flame retardant: Treatment for textiles, paper, wood, and matches
- ▸ Fire suppression: Ingredient in ABC dry-chemical extinguishers
- ▸ Metal finishing: Soldering flux and corrosion inhibitor
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →Diammonium phosphate (CAS 7783-28-0) is an inorganic ammonium phosphate salt. It is used as a fertilizer and plant nutrient, as a yeast nutrient in fermentation, as a flame retardant for cellulosic materials, and as a soldering flux and corrosion inhibitor.
Frequently Asked Questions
What is diammonium phosphate used for?
Diammonium phosphate (DAP, CAS 7783-28-0) is an inorganic ammonium phosphate salt used as a nitrogen-phosphorus fertilizer, as a yeast nutrient in brewing and winemaking, as a flame retardant for cellulosic materials, in ABC dry-chemical extinguishers, and as a soldering flux and corrosion inhibitor.
What is the difference between DAP and NPK?
DAP is a single compound supplying nitrogen and phosphorus (commonly graded 18-46-0), whereas NPK refers to blended fertilizers formulated to a target nitrogen-phosphorus-potassium ratio. DAP is often a phosphorus-rich component used within NPK blends rather than a substitute for them.
What grade is diammonium phosphate fertilizer?
Fertilizer-grade DAP is widely specified as 18-46-0, indicating roughly 18% nitrogen and 46% available phosphate. Grade and intended use (fertilizer vs. fermentation/yeast nutrient) should be stated on the order so the correct specification ships.
What is the CAS number and HS code for diammonium phosphate?
Diammonium phosphate is CAS 7783-28-0, formula H9N2O4P, in the acids and salts family. It is supplied in powder and granular forms; confirm packaging and required grade documentation (CoA) when ordering.
What is the cost of bulk diammonium phosphate?
Bulk DAP pricing depends on grade, granular vs. powder form, packaging, volume, and destination. Request a current quote with your tonnage and ship-to location; each shipment ships with a CoA and SDS.