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Ammonium Bromide Extra Pure Original price was: $ 18.00.Current price is: $ 17.34.
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Ammonium Acetate Extra Pure

Original price was: $ 18.00.Current price is: $ 17.98.

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Ammonium Acetate Extra Pure is a high-purity, white crystalline solid that is highly soluble in water and commonly used as a buffer component in laboratory and analytical chemistry. It is especially valuable in high-performance liquid chromatography (HPLC), mass spectrometry, and biochemical assays where pH control and minimal ionic interference are essential. This compound also serves as a reagent in organic synthesis, particularly in the preparation of acetamides and other nitrogen-containing compounds. Its extra pure grade ensures excellent consistency, low contaminant levels, and compatibility with sensitive instrumentation. To maintain stability and prevent moisture absorption, it should be stored in a tightly sealed container in a cool, dry environment.

 

Description

Ammonium Acetate Extra Pure

Primary Uses

  1. Buffer Preparation in Analytical Chemistry
    • Widely used to prepare acetate buffer systems for pH control in HPLC, electrophoresis, and titrations.
  2. Reagent in Mass Spectrometry (LC-MS/HPLC-MS)
    • Acts as a volatile buffer component in mobile phases for mass spectrometric detection of biomolecules.
  3. Protein and Enzyme Studies
    • Maintains pH in biochemical assays and enzyme activity studies, particularly in low-salt conditions.
  4. Precursor in Organic Synthesis
    • Used in the synthesis of diazomethane, acetamide, and other small organic molecules in research labs.
  5. Salt for Ionic Strength Control
    • Adjusts ionic strength in analytical solutions, helping stabilize reaction conditions in titrations and calibrations.

Secondary Uses

  1. Reagent for Molecular Biology Workflows
    • Sometimes used in nucleic acid purification protocols to precipitate DNA or RNA under specific conditions.
  2. Study of Salt Hydrolysis and Buffer Systems
    • Ideal for demonstrating the behavior of weak acid/base salts and their buffering capacity in educational labs.
  3. Chromatographic Additive in Ion-Exchange Studies
    • Helps in pH modulation and ion interaction in experimental ion-exchange chromatography systems.
  4. Volatile Salt in Sample Preparation
    • Leaves minimal residue after drying—useful when samples need to be lyophilized or evaporated post-treatment.
  5. Decomposition and Thermal Stability Testing
    • Used in thermogravimetric studies to observe salt decomposition and volatilization behavior.
KEY PRODUCT FEATURES

KEY ATTRIBUTES

1. Basic Identification Attributes

  • Chemical Name: Ammonium Acetate
  • CAS Number: 631-61-8
  • HS Code: 29152990 (Other salts of acetic acid)
  • Molecular Formula: C₂H₇NO₂ or CH₃COONH₄
  • Synonyms:
    • Acetic acid, ammonium salt
    • Ethanoic acid ammonium salt
    • Ammonium ethanoate
    • NH₄OAc

2. Physical & Chemical Properties

  • Physical State: Solid (crystalline powder or granules)
  • Color & Odor: White crystals; faint acetic odor
  • Boiling Point: Decomposes before boiling
  • Melting Point: ~114°C (with decomposition)
  • Density/Specific Gravity: ~1.17 g/cm³
  • Solubility:
    • Water: Very soluble (~148 g/100 mL at 25°C)
    • Alcohol: Soluble
  • pH Level: ~6.6–7.0 (5% solution in water)
  • Vapor Pressure: Negligible (non-volatile solid)
  • Flash Point: Not flammable
  • Autoignition Temperature: Not applicable
  • Viscosity: Not applicable (solid)

3. Safety & Hazard Attributes

  • Hazard Class (GHS):
    • Not classified as hazardous under normal laboratory conditions
    • May cause mild irritation to eyes or respiratory tract (dust)
  • NFPA Ratings:
    • Health: 1
    • Flammability: 0
    • Reactivity: 0
  • Exposure Limits:
    • No specific OSHA or ACGIH limits
    • General nuisance dust limit applies
  • Reactivity:
    • Reacts with strong acids (may release acetic acid fumes)
    • Decomposes on heating to form acetamide and water

4. Storage & Handling Attributes 

  • Storage Conditions:
    • Store in a cool, dry, well-ventilated area
    • Keep tightly sealed to prevent absorption of moisture (hygroscopic)
  • Incompatible Materials:
    • Strong acids, strong oxidizers, nitrates
  • Container Type:
    • HDPE or amber glass containers
  • Shelf Life & Expiration Date:
    • Typically 2 years in sealed containers
  • Special Handling Requirements:
    • Avoid inhalation of dust
    • Use gloves and goggles; handle under fume hood if heating

5. Regulatory & Compliance Attributes

  • Regulatory Status:
    • Listed under TSCA, REACH, and other global inventories
  • Hazard Symbols (GHS Pictograms):
    • None required
  • Transportation Restrictions:
    • Not classified as hazardous for transport
  • Waste Disposal Method:
    • Dissolve in water and neutralize if necessary
    • Dispose of according to local non-hazardous chemical waste protocols

6. Environmental & Health Impact

  • Ecotoxicity:
    • Low; readily biodegradable
    • Ammonium ions may affect aquatic life at high concentrations
  • Persistence in Environment:
    • Rapidly dissociates into ammonium and acetate ions
  • Carcinogenicity/Mutagenicity:
    • Not classified as carcinogenic or mutagenic
  • Biodegradability:
    • Fully biodegradable in soil and water systems
SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

  1. Personal Protective Equipment (PPE):
    • Wear a lab coat, chemical-resistant gloves (e.g., nitrile), and safety goggles.
    • Use a dust mask or respirator when handling powder or in poorly ventilated areas.
  2. Handling:
    • Avoid contact with skin, eyes, and clothing.
    • Minimize dust generation and accumulation.
    • Handle in a well-ventilated laboratory or under a fume hood.
    • Keep away from incompatible materials like strong oxidizers and acids.
  3. Storage:
    • Store in a tightly sealed container in a cool, dry, well-ventilated area.
    • Protect from moisture—ammonium acetate is hygroscopic and may clump if exposed to air.
    • Keep separate from strong oxidizing agents and strong acids.
  4. Hygiene Measures:
    • Wash hands thoroughly after handling.
    • Avoid eating, drinking, or smoking in the lab.
    • Clean up spills promptly to avoid exposure.

FIRST AID MEASURES 

  1. Inhalation:
    • Move the person to fresh air.
    • If breathing is difficult or irritation occurs, seek medical attention.
    • Rinse nose and mouth with water if needed.
  2. Skin Contact:
    • Wash skin with soap and plenty of water.
    • Remove contaminated clothing and shoes.
    • Get medical help if irritation develops or persists.
  3. Eye Contact:
    • Rinse cautiously with water for at least 15 minutes.
    • Keep eyelids open and remove contact lenses if easy to do.
    • Seek medical advice if irritation persists.
  4. Ingestion:
    • Rinse mouth with water.
    • Do not induce vomiting.
    • If conscious, give water to dilute.
    • Seek medical attention, especially if symptoms occur.

FIRE FIGHTING MEASURES

  1. Suitable Extinguishing Media:
    • Use water spray, dry chemical powder, alcohol-resistant foam, or carbon dioxide (CO₂).
  2. Specific Hazards:
    • Not highly flammable, but decomposes upon heating to produce irritating fumes such as ammonia and acetic acid vapors.
    • Fire can intensify in the presence of strong oxidizers.
  3. Protective Equipment for Firefighters:
    • Wear full protective gear and a self-contained breathing apparatus (SCBA).
  4. Firefighting Instructions:
    • Cool fire-exposed containers with water spray.
    • Avoid inhaling fumes.
    • Contain water runoff to prevent environmental contamination.