Diammonium Phosphate

Diammonium Phosphate (DAP) is a widely used nitrogen-phosphorus fertilizer that provides both essential plant nutrients. It is the world’s most widely used phosphorus fertilizer. DAP also serves as a flame retardant and fire suppressant. In food applications, it functions as a yeast nutrient in fermentation processes and as a pH buffer.

CAS:

7783-28-0

Formula:

(NH4)2HPO4

Molar Weight

132.06 g/mol

Melting Point

Decomposes at 155°C

Boiling Point

Not applicable (decomposes with ammonia release)

Density

1.619 g/cm³

Forms

White to gray crystalline granules or powder

Odor

Slight ammonia odor

Key applications

  • High-analysis nitrogen-phosphorus fertilizer
  • Yeast nutrient in fermentation
  • Flame retardant in wood products
  • Fire suppressant in dry chemicals
  • pH buffer in food processing

Industries

  • Agriculture and Horticulture
  • Fertilizer Manufacturing
  • Wine and Brewing Industry
  • Fire Safety Industry
  • Food Processing
  • Wood Treatment

DAP, Diammonium hydrogen phosphate, Ammonium phosphate dibasic, Dibasic ammonium phosphate
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