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Diammonium hydrogen phosphate

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Identification
Molecular formula
(NH4)2HPO4
CAS number
7783-28-0
IUPAC name
diammonium;hydrogen phosphate
State
State

At room temperature, diammonium hydrogen phosphate is a solid. It retains its solid state under standard atmospheric conditions.

Melting point (Celsius)
155.00
Melting point (Kelvin)
428.00
Boiling point (Celsius)
130.00
Boiling point (Kelvin)
403.00
General information
Molecular weight
132.06g/mol
Molar mass
132.0560g/mol
Density
1.6190g/cm3
Appearence

Diammonium hydrogen phosphate appears as a white, crystalline solid. It is commonly found in a granular or powder form. Due to its crystalline nature, it can have a shiny, bright surface.

Comment on solubility

Solubility of Diammonium Hydrogen Phosphate

Diammonium hydrogen phosphate, with the chemical formula (NH4)2HPO4, is a fascinating compound known for its solubility properties. Its solubility can be described as follows:

  • Highly Soluble in Water: Diammonium hydrogen phosphate is very soluble in water, making it an effective source of nitrogen and phosphorus for plants.
  • Temperature Dependence: Like many ionic compounds, solubility can be affected by temperature. Generally, increased temperature leads to greater solubility.
  • pH Influence: The solubility of this compound can change in different pH environments. It is most soluble in neutral to slightly alkaline conditions.
  • Salt Formation: In concentrated solutions, (NH4)2HPO4 can lead to the formation of precipitates with certain ions, thus its solubility is contingent upon the presence of various cations and anions in solution.

In summary, (NH4)2HPO4 showcases excellent solubility characteristics, which is vital for its applications in agricultural fertilizers and various chemical processes. Its interaction with water and varying pH levels exemplifies the intricate behavior of chemical compounds in solution.

Interesting facts

Interesting Facts about Diammonium Hydrogen Phosphate

Diammonium hydrogen phosphate, often referred to by its common abbreviation DAP, is a fascinating compound that plays a crucial role in both agriculture and biology. Here are some intriguing aspects:

  • Fertilizer Powerhouse: DAP is widely used as a fertilizer due to its high nutrient content, particularly nitrogen and phosphorus. It serves as an essential source for plants, promoting root development and enhancing overall growth.
  • pH Adjuster: When dissolved in water, this compound can affect the pH of the solution. This property makes it useful not only in agriculture but also in various industrial applications, where pH control is crucial.
  • Dual Ammonium Source: The unique structure of DAP includes two ammonium ions. This dual source of nitrogen contributes to its effectiveness and efficiency as a nutrient provider to plants.
  • Environmental Considerations: While DAP is beneficial in agriculture, it is essential to use it in moderation. Overuse can lead to nutrient runoff, contributing to environmental issues like eutrophication in water bodies.
  • Historical Significance: The use of DAP in fertilizers has roots tracing back to the early 20th century. Its adoption revolutionized agricultural practices and crop yield, marking a significant turning point in modern farming.

"Using DAP not only supports plant health but also contributes to sustainable farming practices when applied judiciously." This balance is crucial for any modern chemical scientist or agriculturist aiming for environmentally friendly agriculture.


In summary, diammonium hydrogen phosphate is more than just a source of nutrients for plants; it reflects the ongoing journey of chemistry and agriculture working hand in hand for better food production and sustainability.

Synonyms
7783-28-0
Diammonium hydrogen phosphate
Ammonium phosphate dibasic
Akoustan A
Fyrex
Pelor
Dibasic ammonium phosphate
Ammonium phosphate, dibasic
Coaltrol LPA 445
Diammonium orthophosphate
K2 (phosphate)
Diammonium hydrogen orthophosphate
Secondary ammonium phosphate
Phos-Chek 202A
Phos-Chek 259
Hydrogen diammonium phosphate
Caswell No. 286C
Ammonium orthophosphate dibasic
Diammonium monohydrogen phosphate
Ammonium monohydrogen orthophosphate
Ammonium phosphate, secondary
HSDB 301
Pyrozyl war
UNII-10LGE70FSU
diazanium hydrogen phosphate
EINECS 231-987-8
10LGE70FSU
ammonium monohydrogen phosphate
Ammonium phosphate ((NH4)2(HPO4))
Ammonium phosphoricum
Spartan ar 295
(NH4)2HPO4
AI3-25349
Ammonium phosphate,dibasic
DTXSID6029705
CHEBI:63051
EC 231-987-8
AMMONIUM PHOSPHATE (MART.)
AMMONIUM PHOSPHATE [MART.]
AMMONIUM PHOSPHATE DIBASIC (USP-RS)
AMMONIUM PHOSPHATE DIBASIC [USP-RS]
PHOS-CHEK 202
Ammonium phosphate secondary
DTXCID109689
DTXCID309705
231-987-8
7722-76-17783-28-0
ammonium phosphate
dtxsid5029689
einecs 233-330-0
fr-cros 282
taikarin f
taikarin fn
Diammonium hydrogenphosphate
DIAMMONIUM PHOSPHATE
Phosphoric acid, diammonium salt
Diammonium acid phosphate
Diammonium hydrogenorthophosphate
diazanium;hydrogen phosphate
Ammoniumhydrogenphosphate
Ammonium hydrogenphosphate
Ammonium phosphate [NF]
Phosphoric acid, ammonium salt (1:2)
Ammonium phosphate (NF)
287488-13-5
di-ammonium phosphate
Ammonium phosphatedi basic
AMMONIUM PHOSPHATE [HSDB]
AMMONIUM PHOSPHATE [VANDF]
AMMONIUM PHOSPHORICUM [HPUS]
AKOS015856700
FD44626
AMMONIUM PHOSPHATE, DIBASIC [II]
AMMONIUM PHOSPHATE, DIBASIC [MI]
AMMONIUM PHOSPHATE, DIBASIC [FCC]
DA-62836
AMMONIUM PHOSPHATE,DIBASIC [WHO-DD]
NS00093532
D02921
Diammonium hydrogenorthophosphate; Ammonium hydrogen phosphate