Back Ammoniumkarbonaat Afrikaans كربونات الأمونيوم Arabic Ammonium karbonat Azerbaijani آمونیوم کربونات AZB Амониев карбонат Bulgarian অ্যামোনিয়াম কার্বনেট Bengali/Bangla Uhličitan amonný Czech Ammoniumcarbonat German Amonia karbonato Esperanto Carbonato de amonio Spanish

Ammonium carbonate

Ammonium carbonate
Ball-and-stick model of two ammonium cations and one carbonate anion
Ball-and-stick model of two ammonium cations and one carbonate anion
Names
IUPAC name
Ammonium carbonate
Other names
  • Baker's ammonia
  • Sal volatile
  • Salt of hartshorn
  • Spirit of Urine
  • E503
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.007.326 Edit this at Wikidata
EC Number
  • 233-786-0
E number E503(i) (acidity regulators, ...)
UNII
UN number 3077
  • InChI=1S/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);2*1H3 checkY
    Key: PRKQVKDSMLBJBJ-UHFFFAOYSA-N checkY
  • InChI=1/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);2*1H3
    Key: PRKQVKDSMLBJBJ-UHFFFAOYAQ
  • O=C(O)O.N.N
  • [NH4+].[NH4+].[O-]C(=O)[O-]
Properties
[NH4]2CO3
Molar mass 96.086 g·mol−1
Appearance White powder
Density 1.50 g/cm3
Melting point 58 °C (136 °F; 331 K) (decomposes)
100 g/(100 ml) (15°C)[1]
25 g/(100 ml) (20°C)
−42.50·10−6 cm3/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritant
GHS labelling:
GHS07: Exclamation mark
Warning
H302, H319
Safety data sheet (SDS) External MSDS
Related compounds
Other anions
 Ammonium bicarbonate
Ammonium carbamate
Other cations
 Sodium carbonate
Potassium carbonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Ammonium carbonate is a chemical compound with the chemical formula [NH4]2CO3. It is an ammonium salt of carbonic acid. It is composed of ammonium cations [NH4]+ and carbonate anions CO2−3. Since ammonium carbonate readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used as a leavening agent and also as smelling salt. It is also known as baker's ammonia and is a predecessor to the more modern leavening agents baking soda and baking powder. It is a component of what was formerly known as sal volatile and salt of hartshorn,[2] and produces a pungent smell when baked. It comes in the form of a white powder or block, with a molar mass of 96.09 g/mol and a density of 1.50 g/cm3. It is a strong electrolyte.

  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–40. ISBN 978-1138561632.
  2. ^ Cite error: The named reference Ullmann was invoked but never defined (see the help page).
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