Ammonium Carbonate Decomposition Balanced Equation

Chemical used as leavening agent and smelling common salt

Ammonium carbonate
Names



IUPAC name Ammonium carbonate
Other names baker'southward ammonia sal volatile salt of hartshorn E503
Identifiers
CAS Number	506-87-half-dozen ^Y 16799-91-0 (monohydrate)^Y
3D model (JSmol)	Interactive image Interactive paradigm
ChemSpider	10048 ^Y
ECHA InfoCard	100.007.326
EC Number	233-786-0
E number	E503(i) (acidity regulators, ...)
IUPHAR/BPS	4509
PubChem CID	517111
UNII	PDP691CN28 ^Y
Un number	3077
CompTox Dashboard (EPA)	DTXSID5047457
InChI InChI=1S/CH2O3.2H3N/c2-1(three)iv;;/h(H2,2,3,iv);21H3^Y Central: PRKQVKDSMLBJBJ-UHFFFAOYSA-N^Y InChI=1/CH2O3.2H3N/c2-1(3)4;;/h(H2,2,3,4);two1H3 Cardinal: PRKQVKDSMLBJBJ-UHFFFAOYAQ
SMILES O=C(O)O.N.North [NH4+].[NH4+].[O-]C(=O)[O-]
Properties
Chemic formula	(NH_iv)_twoCO₃
Molar mass	96.09 thousand/mol
Appearance	White powder
Density	1.fifty grand/cm³
Melting point	58 °C (136 °F; 331 K) (decomposes)
Solubility in water	100 g/100 ml (fifteen°C)^[1] 25 g/100 ml (20°C)
Magnetic susceptibility (χ)	-42.50·10^{−half-dozen} cm³/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Irritant
GHS labelling:
Pictograms
Indicate word	Alert
Gamble statements	H302, H319
Safety data canvass (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). Yverify (what is^{Y N} ?) Infobox references

Chemical compound

Ammonium carbonate is a table salt with the chemical formula (NH₄)₂CO_three. Since it readily degrades to gaseous ammonia and carbon dioxide upon heating, it is used every bit a leavening agent and as well equally smelling table salt. It is also known as baker's ammonia and was a predecessor to the more modern leavening agents blistering soda and baking pulverization. It is a component of what was formerly known equally sal volatile and table salt of hartshorn,^[2] and produces a pungent smell when baked.

Production [edit]

Ammonium carbonate is produced by combining carbon dioxide and aqueous ammonia. About 80,000 tons/year were produced every bit of 1997.^[2]

An orthorhombic monohydrate is known. It crystallizes in an ammonia solution exposed in a carbon dioxide-rich atmosphere.^[3]

Decomposition [edit]

Ammonium carbonate slowly decomposes at standard temperature and pressure through ii pathways. Thus any initially pure sample of ammonium carbonate will presently become a mixture including diverse byproducts.

Ammonium carbonate can spontaneously decompose into ammonium bicarbonate and ammonia:

(NH₄)_iiCO₃ → NH₄HCO_three + NH₃

Which further decompose to carbon dioxide, water and another molecule of ammonia:

NH₄HCO_three → H_iiO + CO₂ + NH₃

Uses [edit]

Leavening agent [edit]

Ammonium carbonate may be used as a leavening agent in traditional recipes, specially those from northern Europe and Scandinavia (e.g. Amerikaner, Speculoos, Tunnbröd or Lebkuchen). It was the precursor to today'due south more than commonly used baking pulverization.

Originally made from footing deer horn and chosen hartshorn, today it is called baker'due south ammonia. Information technology is prepared by the sublimation of a mixture of ammonium sulfate and calcium carbonate and occurs every bit a white powder or a hard, white or translucent mass.^[4] It acts as a oestrus activated leavening amanuensis and breaks down into carbon dioxide (leavening), ammonia (which needs to dissipate) and water. It is sometimes combined with sodium bicarbonate to mimic equally a double acting baking pulverisation and to help mask whatever ammonia odor not broiled out.

Information technology besides serves as an acidity regulator and has the E number E503. It tin be replaced with blistering pulverisation, but this may affect both the gustatory modality and texture of the finished product. Baker's ammonia should be used to create thin dry baked appurtenances like crackers and cookies. This allows the strong ammonia smell to broil out. It should not exist used to make moist baked items like cake since ammonia is hydrophilic and volition leave a strong bitter taste.

Its use as a leavening amanuensis, with associated controversy, goes back centuries:

In the third kind of breadstuff, a vesicular appearance is given to it by the addition to the dough of some ammoniacal salt, (usually the sub-carbonate,) which becomes wholly converted into a gaseous substance during the process of baking, causing the dough to swell out into little air vessels, which finally bursting, allow the gas to escape, and leave the bread exceedingly porous. Mr. Accum, in his Treatise on Culinary Poisons, has stigmatized this process as "fraudulent," but, in our opinion, almost unjustly. The bakers would never prefer it but from necessity: when skilful yeast cannot be procured, information technology forms an beauteous and perfectly harmless substitute; costing the baker more than, information technology diminishes his profit, while the consumer is benefited by the breadstuff retaining the solid matter, which past the process of fermentation is dissipated in the form of alcohol and carbonic acid gas.^[five]

Other uses [edit]

Ammonium carbonate is the main component of smelling salts, although the commercial calibration of their production is minor. Buckley'south coughing syrup from Canada today uses ammonium carbonate every bit an agile ingredient intended to assist relieve symptoms of bronchitis. It is also used as an emetic. It is also constitute in smokeless tobacco products, such as Skoal, and it is used in aqueous solution as a photographic lens cleaning agent, such as Eastman Kodak's "Kodak Lens Cleaner."

It is also used for luring of apple maggots in Washington State, to monitor the spread of the infestation and adjust the borders of the Apple Maggot Quarantine Area.^{[half dozen]}

References [edit]

^ John Rumble (June eighteen, 2018). CRC Handbook of Chemistry and Physics (99th ed.). CRC Press. pp. 4–40. ISBN978-1138561632.
^ ^a ^b Karl-Heinz Zapp (2012). "Ammonium Compounds". Ullmann's Encyclopedia of Industrial Chemical science. Weinheim: Wiley-VCH. doi:10.1002/14356007.a02_243. ISBN978-3527306732.
^ Fortes, A.D.; Wood, I.Thou.; Alfè, D.; Hernàndez, E.R.; Gutmann, 1000.J.; Sparkes, H.A. (2014-12-01). "Construction, hydrogen bonding and thermal expansion of ammonium carbonate monohydrate". Acta Crystallographica Section B. 70 (6): 948–962. doi:10.1107/S205252061402126X. ISSN 2052-5206. PMC4468514. PMID 25449618. Retrieved 2021-08-xx .
^ "CFR - Code of Federal Regulations Title 21". www.accessdata.fda.gov . Retrieved 2018-02-07 .
^ "Bread". The Engineer's and Mechanic's Encyclopedia. Vol. 1. Luke Hebert. 1849. p. 239.
^ Yee, Wee 50.; Nash, Meralee J.; Goughnour, Robert B.; Cha, Dong H.; Linn, Charles E.; Feder, Jeffrey L. (2014). "Ammonium Carbonate is More Attractive Than Apple and Hawthorn Fruit Volatile Lures to Rhagoletis pomonella(Diptera: Tephritidae) in Washington State". Environmental Entomology. 43 (4): 957–968. doi:ten.1603/en14038. PMID 24915519. S2CID 31174719.