Diammonium Phosphate — (NH4)2HPO4

Price range: € 9.95 through € 6,000.00

Diammonium Phosphate ((NH4)2HPO4), CAS 7783-28-0. Substance identity, physical and chemical data.

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REACH 2020/878
v1 · 23.08.2026
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3D model Diammonium hydrogen phosphate, CAS 7783-28-0, molecular formula H₉N₂O₄P, molar mass 132.06 g/mol
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Description

CAS Registry Number: 7783-28-0 · Formula (NH4)2HPO4 · All grades on this page are supplied against this CAS number.

Diammonium Phosphate ((NH4)2HPO4) is identified by CAS registry number 7783-28-0. Molar mass 132.06 g/mol. PubChem CID 24540.

Synonyms in trade and literature: DAP; diammonium hydrogen phosphate.

This page covers the substance itself. Commercial grades and physical forms — which differ in particle size, purity tier and production route — are described on the corresponding catalogue page.

Chemical and regulatory data below are generated from public reference sources by the site engine and are keyed to the CAS number.

Two grades on one ladder. Pack sizes from 100 g to 25 kg are supplied as laboratory grade (typically ≥99 % p.a. / ACS / Ph. Eur.), where the price is dominated by packaging, quality control and handling rather than by material. Tonnage quantities are supplied as technical grade and priced on a commodity basis. The price per kilogram therefore drops sharply between the 25 kg and 1 t steps — these are different products, not a pricing error.

Additional information

Weight N/A
Pack size

1 g, 10 g, 100 g, 250 g, 500 g, 1 kg, 5 kg, 25 kg, 1 t, 10 t

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Extended Bibliography (2)

  1. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Horthimaworrakun, Rutchapong. "Flame retardant finishing of fabrics by diammonium hydrogen phosphate using plasma generated from a theta-pinch device.". https://doi.org/10.58837/chula.the.2007.993. link [accessed: 2026-08-23] CC0 (metadata)
  2. ★☆☆☆☆ OPENLIBRARY 🔓 OPEN S. V. Grampurohit. 1975. "Spectrochemical determination of iron in diammonium hydrogen phosphate." Bhabha Atomic Research Centre. link [accessed: 2026-08-23] CC0 (metadata)
Data from PubChemSource: PubChem (NIH) · ChEMBL
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