Diammonium Phosphate (DAP)
White to light-grey free-flowing granules · CAS 7783-28-0
Overview
Diammonium Phosphate (DAP) (CAS 7783-28-0) is one of the salts & minerals products Suraj Chemicals supplies to industrial, institutional and manufacturing buyers across India from our Chennai base. It is commonly used for npk fertiliser (18-46-0) used as a starter/basal dressing; yeast nutrient and fermentation aid in brewing and wine-making; flux formulations for soldering and brazing, among other applications in the salts & minerals category. We pack Diammonium Phosphate (DAP) in 25/50 kg HDPE/PP bags, and can arrange bulk, drum or tanker quantities for larger requirements — full characteristics, applications and downloadable documentation are below, or you can request a quote directly.
Specification Sheet — Characteristics
Download Specification Sheet (PDF)| Characteristics | Specifications |
|---|---|
| Assay ((NH4)2HPO4) | 96% Min |
| Nitrogen Content (N) | 18% Min |
| P2O5 Content | 46% Min |
| Moisture | 1.5% Max |
| pH (1% Solution) | 7.5 – 8.2 |
Values above are well-established typical/standard specification properties for this product, compiled from published technical references — not a batch-specific lab report. Figures can vary batch to batch — request a current certificate of analysis with your order.
Applications
- NPK fertiliser (18-46-0) used as a starter/basal dressing
- Yeast nutrient and fermentation aid in brewing and wine-making
- Flux formulations for soldering and brazing
- Fire-retardant treatment for wood and textiles
Frequently Asked Questions
What is Diammonium Phosphate (DAP)?
Diammonium Phosphate (DAP) is supplied by Suraj Chemicals as white to light-grey free-flowing granules, identified by CAS number 7783-28-0. It falls under our Salts & Minerals range — see the Specification Sheet table above for its full characteristics.
What is Diammonium Phosphate (DAP) used for?
Typical applications include: NPK fertiliser (18-46-0) used as a starter/basal dressing; Yeast nutrient and fermentation aid in brewing and wine-making; Flux formulations for soldering and brazing; Fire-retardant treatment for wood and textiles.
How should Diammonium Phosphate (DAP) be stored and handled?
Store in a dry, covered area; non-combustible.
What packaging and pack sizes does Suraj Chemicals supply Diammonium Phosphate (DAP) in?
25/50 kg HDPE/PP bags. Contact us if you need a different pack size, or a bulk/tanker quantity.
What is the shelf life of Diammonium Phosphate (DAP)?
Typically around 24 months from date of manufacture when stored in original, unopened packaging under normal warehouse conditions, consistent with standard industry practice for this class of chemical. As with any industrial chemical, request the current batch's manufacturing date and a fresh certificate of analysis for orders where exact remaining shelf life matters.
Is Diammonium Phosphate (DAP) hazardous to handle?
Yes — Diammonium Phosphate (DAP) is combustible and should be kept away from heat and ignition sources. Follow the storage and handling guidance above, use appropriate PPE, and download the Safety Data Sheet (SDS/MSDS) in the sidebar above for full GHS hazard, handling and PPE details.
Is a Specification Sheet, TDS or MSDS available for Diammonium Phosphate (DAP)?
Yes — a downloadable Specification Sheet (PDF) with full characteristics and specifications is available above, and a downloadable Safety Data Sheet (SDS/MSDS) for Diammonium Phosphate (DAP) is also available above.
Can I get a sample or discuss order quantity for Diammonium Phosphate (DAP)?
Yes — use the Request Price & Availability button or WhatsApp us with your required quantity, and our team will confirm pricing, minimum order quantity, sample availability and delivery timelines for Diammonium Phosphate (DAP).