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Product Name: Citric Acid Monohydrate
Chemical Formula: C6H8O7·H2O
CAS Number: 5949-29-1
Recommended Use: Food additive, preservative, industrial cleaning
Supplier Identification: Name, address, emergency contact, phone number
Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic acid monohydrate
UN Number: Not classified as dangerous goods by transport regulations
GHS Classification: Eye Irritation (Category 2A), Skin Irritation (Category 3)
GHS Label Elements: Exclamation mark symbol, signal word: Warning
Hazard Statements: Causes serious eye irritation; may cause mild skin irritation
Precautionary Statements: Avoid breathing dust, wash hands after handling, wear eye protection
Routes of Entry: Eyes, skin, inhalation, ingestion
Pictograms: Exclamation mark
Potential Health Effects: May cause irritation with redness and tearing in eyes; prolonged contact can dry and crack skin; inhaling dust could trigger coughing or respiratory discomfort
Chemical Name: Citric Acid Monohydrate
Concentration: 99 - 100%
Impurities: Trace elements under industrial limits
Molecular Weight: 210.14 g/mol
Other Components: Water of crystallization (about 7.5% by weight)
Eyes: Rinse immediately with plenty of water for at least 15 minutes, keep eyelids apart, remove contact lenses if present, seek medical advice if irritation persists
Skin: Wash with soap and plenty of water, remove contaminated clothing, seek medical attention if redness or discomfort remains
Inhalation: Remove to fresh air, keep at rest, call for medical help if breathing becomes difficult or irritation continues
Ingestion: Wash mouth out with water, do not induce vomiting, seek medical attention if feeling unwell
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Media: Do not use direct water jet as this can cause splattering
Specific Hazards: Combustion releases carbon oxides and acrid smoke, may decompose at high temperatures
Protective Equipment for Firefighters: Wear positive pressure self-contained breathing apparatus, full protective clothing
Special Procedures: Keep area ventilated, remove containers from fire area if safe, prevent run-off from entering drains
Personal Precautions: Wear protective clothing including gloves, safety goggles, dust mask; avoid contact with skin, eyes, and clothing
Environmental Precautions: Prevent product from entering watercourses, soil, and drainage systems
Cleanup Methods: Sweep or vacuum with HEPA filter, avoid generating dust, place in suitable container for reuse or disposal
Spill Response: Ventilate area, wash remaining residue with copious amounts of water
Handling: Use in well-ventilated spaces, minimize dust creation, wear eye and skin protection
Storage: Store in tight, labelled containers in a dry, cool, well-ventilated place away from incompatible substances like strong bases or oxidizers
Safe Practices: Keep away from heat and direct sunlight, avoid moisture exposure which can lead to clumping
Incompatibilities: Strong bases, strong oxidizing agents, moisture-sensitive compounds
Exposure Limits: No established occupational exposure limits, handle as nuisance dust: OSHA PEL 15 mg/m³ (total dust), ACGIH TLV 10 mg/m³
Engineering Controls: Local exhaust and general mechanical ventilation to keep dust levels below recommended limits
Personal Protective Equipment: Eye protection (safety goggles), gloves (nitrile or latex), dust respirator (N95 or equivalent), chemical-resistant clothing as needed
Hygiene Measures: Wash hands before eating, drinking, or smoking; remove contaminated clothing and wash before reuse
Appearance: White, crystalline, odorless solids
pH (5% solution): 1.8 – 2.2
Melting Point: 153°C (decomposes)
Boiling Point: Decomposes before boiling
Density: 1.542 g/cm³
Solubility: Fully soluble in water, freely soluble in ethanol
Vapor Pressure: Not volatile
Partition Coefficient: log Pow: –1.72
Evaporation Rate: Not applicable
Flash Point: Not flammable
Odor Threshold: Not applicable
Chemical Stability: Stable under normal weekday storage conditions, sensitive to moisture and heat
Reactivity: Reacts with strong oxidizers and bases; evolves heat and carbon dioxide with carbonates
Decomposition Products: On heating, releases carbon monoxide, carbon dioxide, and acrid smoke
Conditions to Avoid: High temperatures, humidity, direct sunlight, incompatible materials
Polymerization: Does not occur
Acute Toxicity: LD50 (oral, rat): 5040 mg/kg
Skin Corrosion/Irritation: Mild irritation possible with prolonged exposure
Eye Damage/Irritation: Moderate-to-severe irritation, risk of corneal injury with direct contact
Respiratory or Skin Sensitization: Not classified as a sensitizer
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Mutagenicity: Negative in tested systems
Reproductive Toxicity: No adverse effects observed in studies
Chronic Effects: Long-term exposure can cause skin dryness or cracking, chronic respiratory irritation with repeated inhalation of dust
Ecotoxicity: Low toxicity to aquatic organisms, LC50 (fish, 96h): > 400 mg/L
Mobility: High, dissolves in water and migrates readily in soil
Persistence and Degradability: Readily biodegradable in the environment, breaks down via natural processes
Bioaccumulation Potential: Low
Other Adverse Effects: Acidifies water and soil in large quantities, possibly affecting local pH for brief periods
Waste Disposal Methods: Dispose as non-hazardous waste per local, state, federal regulations; dilute solutions can be flushed to sanitary sewer with plenty of water
Container Disposal: Rinse thoroughly, recycle or dispose of containers according to official requirements
Special Precautions: Avoid release of dust during disposal or transfer, prevent entry into natural waterways in large quantities
UN Number: Not regulated as dangerous goods for transportation
Proper Shipping Name: Citric Acid Monohydrate
Hazard Class: Not classified
Packing Group: Not assigned
Environmental Hazards: None identified
Special Transport Precautions: Protect from moisture, keep in sealed containers during transit
US Regulations: Listed on TSCA Inventory; not subject to specific reporting requirements
EU Regulations: REACH registration not required below certain volumes; listed on EINECS
Other International Lists: Approved for food, pharmaceutical, and industrial uses by international agencies
Hazard Categories: Not classified as hazardous for major transportation or workplace regulations
Labeling Requirements: Compliant with OSHA Hazard Communication Standard, CLP Regulation (EC) No 1272/2008
SARA Title III: Not regulated
Canadian WHMIS: Classified as D2B (skin/eye irritant)
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
