In wässriger Lösung hydrolysiert Ammoniumcarbamat ab 35 °C teilweise, oberhalb von 60 °C vollständig unter Bildung von Ammoniumcarbonat, das wiederum in Ammoniak und Kohlenstoffdioxid zerfallen kann. It can be replaced with baking powder, but this may affect both the taste and texture of the finished product. Ammonium carbonate slowly decomposes at standard temperature and pressure through two pathways. 4 3 C. 2. Der Zerfall kann über die entsprechenden Dissoziationsdrücke quantifiziert werden.[3]. Carbamates are incompatible with strong acids and bases, and especially incompatible with strong reducing agents such as hydrides. Its use as a leavening agent, with associated controversy, goes back centuries: In the third kind of bread, 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. Diese Seite wurde zuletzt am 12. This allows the strong ammonia smell to bake out. Parent Compound: CID 767 (Carbonic acid) Component Compounds: CID 222 (Ammonia) CID 767 (Carbonic acid) Dates: Modify . It is a component of what was formerly known as sal volatile and salt of hartshorn,[1] and produces a pungent smell when baked. It is prepared by the sublimation of a mixture of ammonium sulfate and calcium carbonate and occurs as a white powder or a hard, white or translucent mass. Ammonium carbonate can spontaneously decompose into ammonium bicarbonate and ammonia: Which further decompose to carbon dioxide, water and another molecule of ammonia: Ammonium carbonate may be used as a leavening agent in traditional recipes, particularly those from northern Europe and Scandinavia (e.g. Ammonium carbamate is the inorganic compound with the formula NH4[H2NCO2]. Key value for chemical safety assessment Additional information Ammoniumcarbamat wird in der Kosmetikindustrie und bei der Herstellung von Schädlingsbekämpfungsmitteln verwendet. TCC’s Ammonium Carbonate, also known as baker’s ammonia or hartshorn, is a white, crystalline salt with the chemical formula (NH4)2CO3. [3], Ammonium carbonate is the main component of smelling salts, although the commercial scale of their production is small. Februar 2020 um 16:49 Uhr bearbeitet. Keep people away. Originally made from ground deer horn and called hartshorn, today it is called baker's ammonia. Ammoniumcarbamat entsteht durch direkte Reaktion von Ammoniakgas und CO2 im Volumenverhältnis 2:1 unter Ausschluss von Wasser. Ammonium carbonate is a salt with the chemical formula (NH4)2CO3. This compound is a white solid that is extremely soluble in water, less so in alcohol. It is also known as baker's ammonia and was a predecessor to the more modern leavening agents baking soda and baking powder. 506-87-6. The bakers would never adopt it but from necessity: when good yeast cannot be procured, it forms an admirable and perfectly harmless substitute; costing the baker more, it diminishes his profit, while the consumer is benefited by the bread retaining the solid matter, which by the process of fermentation is dissipated in the form of alcohol and carbonic acid gas. Commercial samples labeled ammonium carbonate no longer contain this compound, but a mixture that has similar ammonia content. Like amides they form polymers such as polyurethane resins. It also serves as an acidity regulator and has the E number E503. AMMONIUM CARBAMATE ACM CAUTIONARY RESPONSE INFORMATION Common Synonyms Solid crystalline powder White Ammonia odor Mixes with water. Durch Zugabe von Ammoniakgas wird die Löslichkeit noch erhöht. 2014 Aug;43(4):957-68. doi: 10.1603/EN14038. Beim Erhitzen in einem geschlossenen System kann bei Temperaturen schon um Raumtemperatur ein Zerfall in Harnstoff und Wasser beobachtet werden. PMID: 24915519", https://en.wikipedia.org/w/index.php?title=Ammonium_carbonate&oldid=983155219, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 12 October 2020, at 15:40. Of ammonia with carbon dioxide geringen Nachfrage lediglich rund 1000 t/a and controlling. 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