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Product Name: Citric Acid
Chemical Formula: C6H8O7
CAS Number: 77-92-9
Synonyms: 2-hydroxypropane-1,2,3-tricarboxylic acid, Lemon acid
Intended Use: Food additive, cleaning agent, industrial applications, laboratory reagent
Supplier: Details depend on manufacturer.
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Causes serious eye irritation, may cause skin irritation
Pictogram: Exclamation mark symbol
Precautionary Statements: Avoid contact with eyes, wear protective gloves and eye protection, wash thoroughly after handling, if in eyes: rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, seek medical advice if irritation persists
Substance: Citric Acid
Concentration: 99% or greater (anhydrous)
Impurities: Trace moisture possible, negligible other organic acids
Eye Contact: Immediately flush with plenty of water for at least 15 minutes, lift eyelids to fully irrigate, get medical help if irritation continues
Skin Contact: Wash off with soap and water, remove contaminated clothing, seek medical attention for persistent redness or discomfort
Inhalation: Remove person to fresh air, keep at rest, get medical attention if symptoms develop
Ingestion: Rinse mouth with water, drink water to dilute, do not induce vomiting, seek medical advice if feeling unwell
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Media: Avoid using high-pressure water streams
Hazardous Combustion Products: Carbon dioxide, carbon monoxide, acrid smoke
Firefighting Instructions: Move containers from fire area when safe, cool unopened drums with water, wear self-contained breathing apparatus and full protective gear
Unusual Fire Hazards: Dust in air can form explosive mixtures
Personal Precautions: Use personal protective equipment, avoid dust formation and inhalation, ventilate area
Spill Cleanup Methods: Sweep or vacuum up to avoid creating dust, place in appropriate container for disposal, wash spill site after material pick-up
Environmental Precautions: Prevent entry into drains or water courses, contain run-off from larger spills
Safe Handling Advice: Avoid breathing dust, avoid contact with skin and eyes, use only in well-ventilated areas, prevent dust accumulation
Safe Storage Requirements: Store in tightly sealed containers, keep in a cool, dry, well-ventilated area away from sources of heat and direct sunlight, keep away from incompatible substances like strong bases, oxidizers, and reducing agents
Special Considerations: Keep away from moisture to avoid caking, ensure containers remain properly labeled
Occupational Exposure Limits: No established OSHA, ACGIH, or NIOSH limits for citric acid
Engineering Controls: Use local exhaust or general ventilation to keep airborne levels low, particularly in bulk handling
Eye Protection: Chemical safety goggles
Skin Protection: Appropriate gloves (nitrile, neoprene), protective clothing to minimize skin contact
Respiratory Protection: NIOSH approved particulate respirator if dusts are generated and ventilation is not adequate
General Hygiene Measures: Wash hands after use, avoid eating, drinking, or smoking when handling the substance
Appearance: White, crystalline solid or powder
Odor: Odorless
pH (1% solution): About 2.2
Melting Point: 153°C (decomposes)
Boiling Point: Not applicable (sublimes)
Solubility: Completely soluble in water, slightly soluble in ethanol
Density: About 1.66 g/cm³
Vapor Pressure: Not significant at room temperature
Flash Point: Not flammable
Other Data: Hygroscopic, decomposes at high temperatures
Chemical Stability: Stable under normal conditions of use and storage
Possible Hazards: May react with strong bases and strong oxidizing agents, incompatible with reducing agents
Hazardous Reactions: None under normal processing
Decomposition Products: Carbon dioxide, carbon monoxide, irritating fumes
Conditions to Avoid: Excessive heat, contact with incompatible materials, humidity/moisture
Polymerization: Not known to polymerize
Acute Toxicity: LD50 (oral, rat): about 3000 mg/kg
Eye Effects: Causes moderate to severe irritation
Skin Effects: May cause mild irritation
Inhalation: Dust inhalation can cause irritation to respiratory system
Ingestion: Not likely to be toxic in usual quantities, large amounts may lead to abdominal pain, nausea, vomiting
Chronic Effects: No reliable evidence of sensitization or long-term toxicity
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, or OSHA
Environmental Toxicity: Low acute toxicity to aquatic life
Degradability: Biodegradable, breaks down rapidly in the environment
Bioaccumulation: Not expected to bioaccumulate
Mobility in Soil: High mobility due to solubility in water
Other Effects: Large spills can lower pH of water bodies
Disposal Methods: Dispose of in accordance with local, state, and federal regulations
Preferred Options: Dilute and flush to sewer if permitted, or send for chemical waste disposal by licensed facility
Contaminated Packaging: Rinse containers, discard as ordinary industrial waste or per regulations
UN Number: Not regulated for transport
Proper Shipping Name: Not hazardous as per transport regulations
Transport Hazard Class: None
Packing Group: None
Marine Pollutant: Not classified as marine pollutant
Special Precautions for User: Avoid generating dust during handling, keep containers sealed
OSHA Status: Not regulated as a hazardous chemical
SARA/Title III: Not subject to reporting
TSCA: Listed
REACH: Exempt or registered
Other Regulations: Approved for use in food and pharmaceuticals per FDA and EU regulations
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
