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West Ujimqin Banner, Xilingol League, Inner Mongolia, China
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Product Name: Citric Acid Anhydrous
Chemical Name: 2-Hydroxy-1,2,3-propanetricarboxylic acid
SYNONYMS: Citric acid, anhydrous; 2-hydroxypropane-1,2,3-tricarboxylic acid
CAS Number: 77-92-9
Supplier: Ask local distributor or manufacturer
Recommended Use: Food additive, acidity regulator, chelating agent, cleaning agent, laboratory reagent
Emergency Phone Number: Available through regional poison centers or local suppliers
Classification: Eye Irritant (Category 2A, GHS)
Label Elements: Warning symbol (Exclamation mark); Signal word: Warning
Hazard Statements: Causes serious eye irritation. May cause skin irritation. Dust may cause respiratory irritation or coughing.
Precautionary Statements: Wash hands after use. Wear eye and face protection. Avoid breathing dust. If in eyes, rinse with plenty of water.
Chemical Identity: Citric Acid, Anhydrous
Purity: ≥99.5% by weight
Impurities: Minimal, may include trace water or related organic acids
Molecular Formula: C6H8O7
Molecular Weight: 192.13 g/mol
Inhalation: Move affected person to fresh air immediately. If breathing is difficult, seek medical attention.
Skin Contact: Rinse skin with soap and cool water, remove contaminated clothing. Seek care if irritation persists.
Eye Contact: Flush eyes with plenty of water for at least 15 minutes, lifting eyelids to remove particles. Seek medical help if discomfort continues.
Ingestion: Rinse mouth, drink water to dilute material, and seek medical advice if feeling unwell. Do not induce vomiting unless directed by medical personnel.
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Avoid strong water jets, as they may scatter dust
Hazards from Combustion: Emits acrid smoke and irritating fumes under fire; may release carbon oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and protective gear to reduce exposure
Special Procedures: Cool containers in vicinity of fire with water spray, avoid inhalation of combustion products
Personal Precautions: Wear respiratory protection for dust, safety glasses, gloves. Use appropriate personal protective equipment.
Environmental Precautions: Avoid discharge to open water or sewer systems. Control runoff tightly to limit environmental contamination.
Clean-Up Methods: Sweep up spillage carefully to avoid dust clouds, collect in sealed, labeled containers for disposal or recovery. Wash affected area with water after picking up material.
Safe Handling: Work in a well-ventilated area. Minimize dust generation and accumulation. Do not eat, drink, or smoke during handling.
Storage Conditions: Store in tightly closed containers in a dry, cool, well-ventilated place. Keep away from sources of ignition, strong oxidizers, and incompatible materials such as alkalis.
Packaging: Use compatible materials such as high-density polyethylene or glass to avoid reactivity.
Occupational Exposure Limits: No established limit for citric acid. Nuisance dust limits may apply (total inhalable dust: 10 mg/m³; respirable dust: 3 mg/m³, typical industrial hygiene standards).
Engineering Controls: Use local exhaust ventilation or process enclosures to limit airborne dust concentrations.
Personal Protective Equipment: Dust mask or respirator for fine powder exposure, chemical safety goggles or face shield, gloves made from resistant material (nitrile, PVC), and lab coat or overalls. Eyewash stations and safety showers recommended in the work area.
Appearance: White, odorless crystalline powder
Odor: Odorless
pH (1% solution): About 2.2
Melting Point: Around 153°C (Decomposes)
Boiling Point: Decomposes before boiling
Solubility in Water: Freely soluble, more than 140 g/L at 25°C
Vapor Pressure: Negligible
Density: About 1.66 g/cm³
Flash Point: Not applicable
Partition Coefficient (n-octanol/water): -1.72 log Pow
Explosive Properties: Not explosive
Auto-Ignition Temperature: > 345°C
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Reacts with strong oxidizers and strong bases; can form complexes with metal ions.
Conditions to Avoid: High temperatures, moisture, incompatible materials
Hazardous Decomposition: Carbon monoxide, carbon dioxide, and acrid fumes with decomposition
Polymerization: Will not occur
Acute Toxicity: Low oral, dermal, and inhalation toxicity in animal studies; LD50 (oral, rat): ~ 3000 mg/kg
Skin Corrosion/Irritation: Mild to moderate irritation possible on prolonged contact
Serious Eye Damage/Irritation: Strong irritant, risk of permanent eye damage from sustained contact
Respiratory Sensitization: May cause coughing, sneezing, and minor irritation of nasal and respiratory passages from dust inhalation
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA, or EU authorities
Mutagenicity: No evidence of mutagenic effects in standard tests
Reproductive Toxicity: Considered non-toxic for reproduction in animal data
Ecotoxicity: Low toxicity in aquatic systems. LC50 (Fish, 96h): > 440 mg/L
Degradability: Readily biodegradable. Expected to degrade easily in sewage treatment and natural waters.
Bioaccumulation: Unlikely due to high solubility and rapid breakdown in the environment.
Mobility in Soil: High mobility because of appreciable solubility in water.
PBT/vPvB Assessment: Does not meet criteria for Persistent, Bioaccumulative, or Toxic substances.
Waste Disposal Methods: Dispose of contents and container according to local, regional, and national regulations. Consider authorized chemical waste incineration or landfill, avoiding discharge to aquatic environments.
Contaminated Packaging: Empty packaging must be disposed as chemical waste or can be reused after proper cleaning depending on the regulatory requirements of the area.
Precautions for Disposal: Handle residues safely using suitable protective equipment.
UN Number: Not regulated as dangerous goods
Proper Shipping Name: Citric Acid Anhydrous
Transport Hazard Classification: Not hazardous for road, rail, sea, or air transport (ADR/RID, IMDG, ICAO/IATA)
Packing Group: Not applicable
Special Precautions: Protect containers against physical damage and moisture.
Hazard Label: None required under transport regulations
Classification and Labeling: Compliant with GHS and regional chemical safety standards; classified as irritating to eyes.
Inventory Listings: Listed in USA TSCA, Canadian DSL/NDSL, EU EINECS/ELINCS, Australian AICS, and other major chemical inventories.
Restrictions: No specific use restrictions in food, cosmetic, or industrial applications under normal intended conditions.
Other Regulatory Info: Meets purity standards for food and pharmaceutical use in compliance with FCC, USP, and European Pharmacopeia.
SARA, CERCLA, RCRA, California Proposition 65: Not listed as hazardous or reportable.
Workplace Hazards: Review OSHA and regional worker protection acts for handling dust and chemical irritants.
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
