Product Name: Ammonium Citrate
Chemical Name: Ammonium hydrogen citrate or Ammonium tertiary citrate
Synonyms: Diammonium citrate, Trisammonium citrate
CAS Number: 3458-72-8
Recommended Use: Laboratory reagent, buffering agent, cleaning agent, food additive
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Classification: Not classified as hazardous under GHS criteria
Hazard Statements: May cause mild skin and eye irritation, dust may trigger temporary respiratory discomfort
Pictogram: No symbol required
Signal Word: None
Precautionary Statements: Avoid breathing dust, wash hands after handling, use in a well-ventilated area
Other Hazards: Mild irritant to mucous membranes, ingestion may affect gastrointestinal tract
Chemical Name: Ammonium Citrate
CAS Number: 3458-72-8
Purity: 99-100%
Impurities: Typical trace levels of moisture or unreacted precursors
Formula: C6H17N3O7
Molecular Weight: 243.22 g/mol
Inhalation: Move to fresh air, seek medical advice if discomfort persists, provide artificial respiration if breathing becomes irregular
Skin Contact: Rinse with soap and plenty of water, remove contaminated clothing, consult a physician for persistent irritation
Eye Contact: Flush eyes with running water for several minutes, hold eyelids apart to ensure thorough irrigation, get medical attention if symptoms persist
Ingestion: Rinse mouth, drink plenty of water, seek medical help if large amounts are swallowed or if symptoms appear
Symptoms & Effects: Irritation, coughing, mild burning sensation on skin or eyes, upset stomach if ingested
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical powder, foam
Unsuitable Media: Avoid water jet directly on product
Fire Hazards: Material is not flammable; may emit nitrogen oxides, carbon oxides, ammonia fumes under fire conditions
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective gear
Special Precautions: Use water to keep containers cool, prevent runoff from entering drains
Personal Precautions: Wear protective clothing, respiratory mask for dust, goggles, gloves
Environmental Precautions: Prevent spills from reaching drains, water bodies, or soil
Cleanup Methods: Sweep up using equipment that limits dust generation, collect residues in suitable containers for disposal, ventilate area
Note: Decontaminate spill site after cleanup to ensure complete removal
Safe Handling: Avoid dust formation, handle using engineering controls to minimize exposure, keep containers closed when not in use
Safe Storage: Store in tightly sealed containers, away from moisture, acids, and incompatible substances; keep in a cool, dry, well-ventilated area
Incompatibilities: Strong oxidizers, acids; avoid storing with materials that may cause contamination or unwanted reactions
Other Guidance: Wash hands thoroughly after use, do not eat, drink, or smoke in handling areas
Occupational Exposure Limit: No available exposure limit set specifically for Ammonium Citrate
Engineering Controls: Use local exhaust ventilation, process enclosures, or other technical measures to avoid airborne dust
Personal Protection: NIOSH-approved respirator for dust, safety goggles or face shield, chemical-resistant gloves, protective lab coat
Hygiene Measures: Remove contaminated clothing and wash thoroughly before re-use, always wash hands before breaks and after handling material
Appearance: White crystalline powder
Odor: Odorless or faint ammonia-like smell
Melting Point: Decomposes before melting
Boiling Point: Not applicable
Solubility in Water: Highly soluble
pH (aqueous solution): 6.0–8.0 (0.1 M solution)
Relative Density: About 1.6 g/cm³
Vapor Pressure: Negligible
Partition Coefficient: Not determined
Decomposition Temperature: Above 180°C, releases ammonia, nitrogen oxides, carbon oxides
Chemical Stability: Stable under standard conditions, sensitive to moisture and acid exposure
Conditions to Avoid: Excessive heat, incompatible substances like acids or strong oxidizers
Incompatible Materials: Strong acids, alkalis, oxidizing agents
Hazardous Decomposition: Ammonia gas, nitrogen oxides, carbon monoxide, carbon dioxide under intense heat
Polymerization: Will not occur
Acute Toxicity: Oral LD50 (rat): > 2000 mg/kg, low toxicity
Skin Irritation: Mild irritant; prolonged exposure may cause dryness or rash
Eye Irritation: May cause discomfort, redness, tearing
Inhalation: Prolonged inhalation of dust can irritate respiratory system
Chronic Effects: No evidence of carcinogenic, mutagenic, or reproductive effects in available data
Other Data: Not classified as sensitizing, toxic, or environmentally persistent
Aquatic Toxicity: Not expected to cause harm at low concentrations, in larger spills may contribute to eutrophication
Mobility in Soil: Material is highly soluble, can leach into water supplies if released, avoid direct discharge
Persistence and Degradability: Slowly biodegradable, breaks down to ammonia and citrates
Bioaccumulation: Not likely based on available data
Other Harm: Not anticipated at typical use concentrations, responsible handling reduces environmental impact
Waste Disposal: Send to authorized waste disposal facility or landfill according to local and national regulations
Contaminated Packaging: Rinse containers before recycling or disposal, dispose of as hazardous waste if not decontaminated
Special Precautions: Do not allow product or waste to enter drains, sewers, or waterways
UN Number: Not regulated for transport
Proper Shipping Name: Ammonium Citrate
Hazard Class: Non-hazardous as per DOT, IATA, IMDG
Packing Group: Not assigned
Marine Pollutant: No
Special Precautions: Seal containers securely, prevent moisture exposure, label clearly
TSCA Status: Listed
EU Directive 67/548/EEC: Not classified as dangerous
REACH Status: Registered or exempt
SARA Title III (Sections 311/312): No hazard classifications
Other Regulations: Always review local, state, and federal regulations for updates and specific requirements regarding usage and disposal
