Ammonium dihydrogen phosphate

Ammonium dihydrogen phosphate[1]
Crystals of Ammonium Dihydrogen Phosphate
Names
IUPAC name
Ammonium dihydrogen phosphate
Other names
Monoammonium phosphate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.028.877 Edit this at Wikidata
EC Number
  • 231-764-5
E number E342(i) (antioxidants, ...)
UNII
  • InChI=1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4) checkY
    Key: LFVGISIMTYGQHF-UHFFFAOYSA-N checkY
  • InChI=1/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
    Key: LFVGISIMTYGQHF-UHFFFAOYAX
  • [O-]P(=O)(O)O.[NH4+]
Properties
H6NO4P
Molar mass 115.025 g·mol−1
Appearance white crystals
Odor none
Density 1.80 g/cm3
Melting point 190 °C (374 °F; 463 K)
(g/dL) 28 (10 °C)
36 (20 °C)
44 (30 °C)
56 (40 °C)
66 (50 °C)
81 (60 °C)
99 (70 °C)
118 (80 °C)
173 (100 °C) [2][3]
Solubility insoluble in ethanol[2]
insoluble in acetone
1.525
Structure
tetragonal
Thermochemistry
−1445.07 kJ/mol[4]
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H319
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
0
0
Lethal dose or concentration (LD, LC):
5750 mg/kg (rat, oral)
Related compounds
Other anions
 Ammonium phosphate
Diammonium phosphate
Other cations
 Monosodium phosphate
Potassium dihydrogen phosphate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Ammonium dihydrogen phosphate (ADP), also known as monoammonium phosphate (MAP)[5] is a chemical compound with the chemical formula (NH4)(H2PO4). ADP is a major ingredient of agricultural fertilizers[6] and dry chemical fire extinguishers. It also has significant uses in optics[7] and electronics.[8]

  1. ^ Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, Florida: CRC Press. pp. 4–40. ISBN 0-8493-0594-2.
  2. ^ a b Cite error: The named reference DXu was invoked but never defined (see the help page).
  3. ^ Chemical Book: "Ammonium dihydrogen phosphate". Accessed on 2018-08-14.
  4. ^ National Bureau of Standards. Selected Values of Chemical Thermodynamic Properties. Technical note 270-3. 1968 [1]
  5. ^ "Monoammonium Phosphate (MAP)" (PDF). www.mosaicco.com. Archived from the original (PDF) on 17 November 2015. Retrieved 5 June 2015.
  6. ^ IPNI. "Monoammonium Phosphate (MAP)" (PDF). www.ipni.net. International Plant Nutrition Institute. Retrieved 21 July 2014.
  7. ^ Amnon Yariv, Pochi Yeh (1984). Optical Waves in Crystals. Wiley, Inc.
  8. ^ Willem Hackmann (1984). Seek and Strike: Sonar, Anti-Submarine Warfare and the Royal Navy, 1914–1954. Her Majesty's Stationery Office. ISBN 0-11-290423-8.