E503 AMMONIUM CARBONATES

E503 Ammonium carbonates refers to a group of ammonium salts of carbonic acid, mainly including ammonium carbonate ((NH₄)₂CO₃) and ammonium bicarbonate (NH₄HCO₃).
E503 Ammonium carbonates are commonly used as leavening agents, acidity regulators, and decomposition-based gas producers in food and industrial applications.
E503 Ammonium carbonates are also historically known as “baker’s ammonia” in baking.

CAS Number: 10361-29-2
Molecular Formula: CH5NO3
Molecular Weight: 79.06
EINECS Number: 233-786-0

Synonyms: Brilliant Blue FCF: Brilliant Blue FCF, Brilliant Blue, FD&C Blue No. 1, Blue 1206, FD & C Blue no. 1, Fenazo Blue XI, Japan Blue 1, Merantine Blue EG, Cosmetic Blue Lake, Hexacol Brilliant Blue A, Brilliant Blue FCF supra, Japan Blue No. 1, Intracid Pure Blue L, Usacert Blue No. 1, FDC Blue No. 1, Food Blue Dye No. 1, Modr Kysela 9, Aizen Food Blue No. 2, Modr Brilantni FCF, blue no. 1, C.I. ACID BLUE 9, DISODIUM SALT, Canacert Brilliant Blue FCF, Modr Potravinarska 2, Usacert FD and C Blue No. 1, D&C Blue No. 1, 1206 Blue, PPQ093M8HR, DTXSID2020189, H3R47K3TBD, DTXCID40189, Benzenemethanaminium derivative disodium salt, CI Food Blue 2, RefChem:570234, VIBRACOLOR BLUE ABL9, brilliant blue disodium salt, INS NO.133, INS-133, CI-(1975)NO.42900, E-133, 223-339-8, Food Blue 2, 3844-45-9, Erioglaucine disodium salt, Food Blue No. 1, Food Blue 1, MFCD00012141, CHEMBL3184128, CHEBI:82411, Dolkwal Brilliant Blue, Acid Blue 9;FD&C Blue No. 1;E133, CAS-3844-45-9, EINECS 223-339-8, Ammonium carbonate, NH_3, min. 28%;AMMONIUM CARBONATE FOR ANALYSIS EMSURE;Ammonium carbonate for analysis EMSURE ACS,Reag. Ph Eur;Carbonic acid, ammonium salt;AMMONIUMCARBONATE,POWDER,FCC;AMMONIUMCARBONATE,POWDER,NF;AMMONIUM CARBONATE, REAG.;Carbonic acid, ammonium salt (1:)

E503 Ammonium carbonates consist of ammonium ions (NH₄⁺) combined with carbonate (CO₃²⁻) or bicarbonate (HCO₃⁻) ions.
E503 Ammonium carbonates are unstable compounds that decompose easily when heated or exposed to moisture.
This releases ammonia (NH₃), carbon dioxide (CO₂), and water vapor.

E503 Ammonium carbonates appear as white crystalline solids or powders.
They are highly soluble in water and have a strong ammonia-like odor.
E503 Ammonium carbonates are volatile and decompose even at mild temperatures.

E503 Ammonium carbonates provide leavening (raising) properties in baking.
When heated, they release gases that expand dough or batter.
This creates light, crisp textures in baked goods.

E503 Ammonium carbonates act as acidity regulators, helping control pH in food systems.
E503 Ammonium carbonates neutralize acidic components during processing.
This improves formulation balance.

E503 Ammonium carbonates function as rapid gas-releasing agents, unlike sodium or potassium carbonates, which may require acids or heat.
Their decomposition is fast and complete.
This makes them useful for thin baked products.

E503 Ammonium carbonates are thermally unstable, breaking down at relatively low temperatures.
This property is essential for their baking applications.
E503 Ammonium carbonates ensures no residual alkaline taste remains.

E503 Ammonium carbonates are best described as volatile ammonium-based leavening agents used mainly in baking and processing applications where rapid gas release, light texture formation, and complete decomposition are required.
E503 Ammonium carbonates also play a key role in creating very porous and brittle structures in baked products.
Because they release gases rapidly, they produce strong expansion during the early baking phase.

E503 Ammonium carbonates improves crispness and lightness.
E503 Ammonium carbonates are especially useful in thin baked items, such as cookies, crackers, wafers, and certain biscuits.
These products benefit from complete drying and crisp texture.

E503 Ammonium carbonates improves product suitability.
E503 Ammonium carbonates help achieve clean flavor profiles, since all decomposition products (ammonia, CO₂, water) fully evaporate during baking.
No alkaline residue remains when properly processed.

E503 Ammonium carbonates improves taste quality.
E503 Ammonium carbonates are used in traditional European and Asian baking techniques, where specific textures depend on fast leavening and moisture removal.
They contribute to characteristic crunchiness in regional recipes.

E503 Ammonium carbonates improves culinary authenticity.
E503 Ammonium carbonates can improve surface structure and browning uniformity by influencing gas release during early baking stages.
This helps form consistent crust development.

E503 Ammonium carbonates require precise thermal control, because insufficient heat can leave residual ammonia odor in the final product.
Proper baking conditions ensure full decomposition.
E503 Ammonium carbonates is important for product safety and flavor.

Melting point: volatilizes at ~60℃ [MER06]
Density: 1.331[at 20℃]
vapor density: 2.7 (vs air)
vapor pressure: 69 hPa (20 °C)
storage temp.: Store at +15°C to +25°C.
solubility: H2O: 0.1 g/mL at 25 °C, clear, colorless
form: solid
PH: 9.4 (100g/l, H2O, 20℃)
Water Solubility: slowly soluble in 4 parts H2O, decomposes in hot H2O, evolving NH3 and CO2 [MER06] [HAW93]
Major Application: pharmaceutical; solid formulation
Cosmetics Ingredients Functions: BUFFERING
InChI: InChI=1S/CH2O3.H3N/c2-1(3)4;/h(H2,2,3,4);1H3
InChIKey: ATRRKUHOCOJYRX-UHFFFAOYSA-N
SMILES: C(O)(O)=O.N

E503 Ammonium carbonates also function as rapid-release leavening agents, meaning they generate gas much faster than most other baking additives.
E503 Ammonium carbonates fast decomposition produces immediate expansion in doughs and batters.
This improves light and crisp textures.

E503 Ammonium carbonates are especially effective in low-moisture baked goods, because they fully decompose during baking without leaving residue.
This prevents unwanted aftertaste or alkalinity.
E503 Ammonium carbonates improves product flavor purity.

E503 Ammonium carbonates produces carbon dioxide, ammonia, and water vapor upon heating.
These gases create strong expansion and porosity in baked products.
E503 Ammonium carbonates improves crispness and structure.

E503 Ammonium carbonates are used in formulations where thin and dry textures are desired, since they are not suitable for moist or dense baked goods.
Moist products may retain ammonia odor if not fully baked.
E503 Ammonium carbonates affects product selection.

E503 Ammonium carbonates help create uniform browning and texture in specialty baking, especially in traditional recipes that require light and crunchy structures.
They influence dough expansion dynamics.
This improves final appearance.

E503 Ammonium carbonates are useful in industrial-scale baking processes, where precise heat control ensures complete decomposition.
Proper temperature ensures all ammonia is released.
This improves production consistency.

E503 Ammonium carbonates are often used in combination with other leavening agents, although in some recipes they are used alone for specific texture effects.
This allows flexible formulation design.
This improves baking control.

E503 Ammonium carbonates are highly volatile, meaning they gradually lose activity if exposed to air and moisture during storage.
Proper airtight packaging is essential.
This preserves effectiveness.

E503 Ammonium carbonates are also used in laboratory and industrial chemical applications, where controlled release of ammonia or carbon dioxide is needed.
Their decomposition properties are useful in reactions.
E503 Ammonium carbonates supports chemical processing.

E503 Ammonium carbonates are specialized leavening agents used primarily for rapid gas release, crisp texture formation, and complete decomposition in baked goods and certain technical applications where volatility and fast breakdown are required.
E503 Ammonium carbonates are often preferred over yeast in some applications because they provide instant chemical leavening without fermentation time.

E503 Ammonium carbonates speeds up production processes.
This improves industrial efficiency.

E503 Ammonium carbonates are not suitable for moist, thick, or dense baked goods, because trapped ammonia may not fully escape.
This limits their application range.
E503 Ammonium carbonates guides formulation selection.

E503 Ammonium carbonates are also used in some pharmaceutical and analytical applications, where controlled ammonia release is needed in chemical reactions.
Their predictable decomposition is useful in controlled environments.
E503 Ammonium carbonates are fast-acting, fully volatile leavening agents that are mainly used to produce crisp, dry, and porous baked goods with complete gas release and no residue when properly processed.

Uses Of E503 Ammonium carbonates:
In baking powders, for washing and defatting woolens, tanning; as mordant in dyeing; manufacture of rubber articles, casein glue, casein colors; in fire extinguishers, smelling salts; for separating cacao constituents; as a reagent in analytical chemistry. 
E503 Ammonium carbonates are mainly used in the food industry as fast-acting leavening agents.

E503 Ammonium carbonates release ammonia and carbon dioxide during baking, which helps dough expand quickly.
This improves texture in specific baked goods.

In cookies, crackers, and biscuits, E503 Ammonium carbonates are used to create a light, crisp, and porous structure.
E503 Ammonium carbonates help produce a dry, crunchy texture that is difficult to achieve with yeast.
This improves product quality.

In wafers and thin baked products, ammonium carbonates ensure strong expansion and complete drying.
E503 Ammonium carbonates evaporate fully during baking, leaving no residue when properly processed.
This improves crispness and shelf stability.

E503 Ammonium carbonates are used in traditional baked goods, especially in European and Asian recipes that require very airy and brittle textures.
They contribute to characteristic regional food qualities.
This improves culinary authenticity.

In industrial baking, they are used where fast production is needed without fermentation time.
E503 Ammonium carbonates provide immediate gas release during heating.
This improves manufacturing efficiency.

E503 Ammonium carbonates are applied in specialty confectionery and decorative baked items, where precise texture control is required.
They help achieve uniform porosity and structure.
E503 Ammonium carbonates improves visual and sensory quality.

In some pharmaceutical and laboratory applications, ammonium carbonates are used as volatile reagents.
E503 Ammonium carbonates release ammonia in controlled chemical reactions.
This supports analytical and synthesis processes.

E503 Ammonium carbonates may also be used in small-scale food formulations requiring complete decomposition without alkaline residue.
They are suitable only for products that are fully baked or dried.
This ensures product safety and quality.

E503 Ammonium carbonates are generally not used in moist or dense baked goods, because ammonia may remain trapped if not fully released.
This limits their application to dry baking systems.
E503 Ammonium carbonates are used mainly in dry baked goods, crisp biscuits, wafers, crackers, industrial baking systems, and certain laboratory processes where rapid gas release and complete volatilization are required.

E503 Ammonium carbonates are also used in high-speed industrial baking lines, where very short baking times are required.
Their rapid decomposition allows immediate expansion without fermentation.
This improves production throughput.

E503 Ammonium carbonates are used in low-moisture snack products, where maintaining crispness during long storage is important.
Because they fully volatilize, they help prevent sogginess.
This improves shelf stability.

In specialty European biscuits and traditional recipes, they are used to achieve characteristic brittle textures.
These products rely on fast gas release rather than yeast fermentation.
E503 Ammonium carbonates improves product authenticity.

E503 Ammonium carbonates can contribute to surface blistering and fine pore formation in baked goods.
This creates a distinctive texture and appearance.
E503 Ammonium carbonates improves sensory quality.

E503 Ammonium carbonates are used in industrial cookie manufacturing, especially where uniform thickness and crisp structure are required.
E503 Ammonium carbonates help control expansion during baking.
This improves consistency in mass production.

In some cases, E503 Ammonium carbonates are used in combination with sodium or potassium bicarbonate, to fine-tune gas release timing.
This allows better control over dough expansion.
E503 Ammonium carbonates improves formulation flexibility.

E503 Ammonium carbonates are useful in recipes that require complete absence of residual alkalinity, since they fully break down into gases during baking.
This ensures no chemical taste remains.
This improves flavor purity.

E503 Ammonium carbonates are also used in some laboratory demonstrations and chemical processes, where controlled release of ammonia gas is needed.
Their predictable decomposition is useful in experiments.
This supports controlled reactions.

E503 Ammonium carbonates are generally avoided in modern moist bakery systems, because ammonia may not fully escape if moisture is retained.
This could affect odor and taste.
E503 Ammonium carbonates are used mainly in dry, crisp baked goods, industrial biscuit production, traditional baking applications, and select chemical processes where rapid decomposition, gas release, and residue-free results are required.

Safety Profile Of E503 Ammonium carbonates:
E503 Ammonium carbonates are generally considered low-to-moderate hazard substances in final food use, but they can pose significant irritation risks in concentrated form and during handling.
Their hazards mainly come from ammonia release during decomposition.
This makes proper ventilation and controlled use important.

The most notable hazard is respiratory irritation from ammonia gas.
When heated or decomposed, ammonium carbonates release ammonia, which can irritate the eyes, nose, and throat.
High concentrations may cause coughing or breathing discomfort.

E503 Ammonium carbonates can cause eye irritation, especially in powder form or if exposed to ammonia vapors.
Symptoms may include redness, tearing, and burning sensation.
This is usually temporary but unpleasant.

Skin contact may lead to mild irritation, especially with concentrated material or prolonged exposure.
Sensitive individuals may experience redness or dryness.
This effect is generally reversible.

Ingestion of large amounts (not typical in food use) may cause gastrointestinal irritation, including nausea or stomach discomfort.
E503 Ammonium carbonates is due to their alkaline nature and ammonia release.
Normal food levels do not pose this risk.

E503 Ammonium carbonates a key practical hazard is residual ammonia odor or taste if baking is insufficient.
If not fully decomposed, ammonia can remain trapped in the product.