
Ammonium Carbonate Extra Pure
$ 18.00 Original price was: $ 18.00.$ 17.34Current price is: $ 17.34.
Ammonium Carbonate Extra Pure is a high-quality, white crystalline solid widely used across various scientific, industrial, and food-related applications. Manufactured to stringent purity standards, this compound is ideal for laboratories and processes that demand high-grade reagents. With its characteristic ammonia-like odor and ability to decompose upon heating, ammonium carbonate plays a versatile role in both chemical reactions and physical processes.
In aqueous solution, ammonium carbonate breaks down into ammonium bicarbonate and ammonium carbamate, further releasing ammonia (NH₃) and carbon dioxide (CO₂) upon heating. This property makes it especially useful in applications that require controlled gas release or temporary pH modification.
Ammonium Carbonate Extra Pure
Primary Uses
- Reagent in Analytical Chemistry
- Used in qualitative analysis for precipitating metal carbonates (e.g., calcium, barium) in classic group tests.
- Volatile Buffer Component
- Applied in mass spectrometry sample prep and protein analysis due to its decomposable, low-residue nature.
- Source of Ammonia and Carbon Dioxide
- Releases NH₃ and CO₂ on heating or exposure to moisture, making it useful for gas evolution studies and simulations.
- Protein Precipitation in Biochemistry
- Occasionally used to precipitate proteins or enzymes under specific pH and ionic conditions.
- Educational Demonstrations in Decomposition and Gas Reactions
- Ideal for classroom demonstrations of thermal decomposition, gas evolution, and equilibrium systems.
Secondary Uses
- Leavening Agent Studies in Food Chemistry Labs
- Investigated for its historical and experimental role as a leavening agent, particularly in controlled baking simulations.
- Simulation of Biological Ammonia Cycles
- Used in ecological or biochemical models of nitrogen metabolism and urea breakdown.
- Preparation of Ammonium-Based Compounds
- Acts as a precursor for synthesis of other ammonium salts, including lab-made fertilizers or reagents.
- pH Adjustment in Non-Aqueous Systems
- Used in specialized buffer systems requiring a mild, temporary pH shift.
- Fume Generation in Insect Behavior Studies
- Sometimes used in entomology research to release ammonia vapor for attracting or repelling certain insects in lab trials.
KEY ATTRIBUTES
1. Basic Identification Attributes
- Chemical Name: Ammonium Carbonate
- CAS Number: 10361-29-2 (for commercial mixture) or 506-87-6 (pure compound)
- HS Code: 28369900 (Carbonates; other than sodium, potassium, or lithium)
- Molecular Formula: (NH₄)₂CO₃ (pure form)
- Synonyms:
- Hartshorn salt
- Sal volatile
- Ammonium sesquicarbonate (common commercial mixture)
- Carbonic acid diammonium salt
- Baker’s ammonia
2. Physical & Chemical Properties
- Physical State: Solid (white crystalline powder or lumps)
- Color & Odor: White; sharp, ammonia-like odor
- Boiling Point: Decomposes before boiling
- Melting Point: ~58°C (decomposes to NH₃, CO₂, and H₂O)
- Density/Specific Gravity: ~1.5 g/cm³
- Solubility:
- Water: Soluble (~100 g/L at 20°C)
- Alcohol: Insoluble
- pH Level: ~8.0–9.0 (in 5% aqueous solution)
- Vapor Pressure: Releases ammonia and carbon dioxide vapors on heating
- Flash Point: Not flammable
- Autoignition Temperature: Not applicable
- Viscosity: Not applicable (solid)
3. Safety & Hazard Attributes
- Hazard Class (GHS):
- Eye Irritation (Category 2A)
- Skin Irritation (Category 2)
- Acute Toxicity (Inhalation, Category 4)
- NFPA Ratings:
- Health: 2
- Flammability: 0
- Reactivity: 1
- Exposure Limits:
- OSHA PEL for ammonia: 50 ppm
- ACGIH TLV for ammonia: 25 ppm (TWA), 35 ppm (STEL)
- Reactivity:
- Decomposes readily in moist air or when heated
- Reacts with acids to release CO₂ gas
- May release irritating ammonia fumes
4. Storage & Handling Attributes
- Storage Conditions:
- Store in airtight containers in a cool, dry, well-ventilated place
- Protect from heat and moisture
- Incompatible Materials:
- Acids, oxidizing agents, strong bases
- Container Type:
- HDPE or glass containers with tight lids
- Shelf Life & Expiration Date:
- ~1–2 years if properly sealed; decomposes gradually when exposed to air
- Special Handling Requirements:
- Handle in a fume hood or well-ventilated area
- Use gloves, goggles, and avoid breathing vapors or dust
5. Regulatory & Compliance Attributes
- Regulatory Status:
- Listed under TSCA, REACH
- Approved for use in laboratories and food-grade applications (when applicable)
- Transportation Restrictions:
- Not regulated for transport under standard lab quantities
- Waste Disposal Method:
- Neutralize and dispose in accordance with local environmental regulations
- Avoid releasing fumes into enclosed spaces
6. Environmental & Health Impact
- Ecotoxicity:
- Low; ammonium and carbonate ions may contribute to nutrient loading in water
- Persistence in Environment:
- Decomposes into ammonia, carbon dioxide, and water
- Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic or mutagenic
- Biodegradability:
- Inorganic; rapidly decomposes into naturally occurring compounds
SAFETY PRECAUTIONS
- Personal Protective Equipment (PPE):
- Wear a lab coat, chemical splash goggles, and chemical-resistant gloves (e.g., nitrile).
- Use a dust mask or respirator if handling large amounts or if dust is generated.
- Handling:
- Handle in a well-ventilated area or under a fume hood—decomposes to release ammonia gas.
- Avoid breathing dust or vapors.
- Prevent contact with skin, eyes, and clothing.
- Do not mix with acids, as this will release carbon dioxide and ammonia gas.
- Storage:
- Store in a tightly sealed container in a cool, dry, well-ventilated place.
- Protect from heat, moisture, and direct sunlight.
- Avoid contact with acidic or oxidizing substances.
- Hygiene Measures:
- Wash hands and exposed areas thoroughly after handling.
- Avoid eating, drinking, or smoking in the lab.
- Clean any spills promptly to prevent exposure to decomposed vapors.
FIRST AID MEASURES
- Inhalation:
- Move the person to fresh air immediately.
- If breathing becomes difficult or irritation occurs, administer oxygen and seek medical attention.
- Monitor for symptoms like coughing, shortness of breath, or sore throat.
- Skin Contact:
- Remove contaminated clothing.
- Rinse skin thoroughly with soap and water.
- Seek medical attention if irritation develops or persists.
- Eye Contact:
- Immediately flush eyes with plenty of water for at least 15 minutes.
- Keep eyelids open and remove contact lenses if present.
- Seek medical attention if irritation continues.
- Ingestion:
- Rinse mouth with water.
- Do not induce vomiting.
- If the person is conscious, give water or milk to dilute.
- Seek immediate medical help due to potential irritation of the digestive tract.
FIRE FIGHTING MEASURES
- Suitable Extinguishing Media:
- Use water spray, dry chemical powder, foam, or carbon dioxide (CO₂) depending on surrounding materials.
- Specific Hazards:
- Not flammable, but decomposes upon heating to release ammonia and carbon dioxide.
- Vapors may be irritating or toxic in confined areas.
- Protective Equipment for Firefighters:
- Wear full protective clothing and a self-contained breathing apparatus (SCBA).
- Firefighting Instructions:
- Cool exposed containers with water spray.
- Avoid inhaling decomposition gases.
- Control runoff to avoid environmental contamination.