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Product Name: Chloroacetic Acid
Synonyms: Monochloroacetic Acid, MCA
CAS Number: 79-11-8
Molecular Formula: C2H3ClO2
Use: Intermediate for dyes, herbicides, pharmaceuticals, and surfactants
Manufacturer Details: Provided by supplier certified under local regulations, address and emergency contact included on packaging and shipping documentation
Classification: Acute toxicity (oral, dermal, inhalation), Skin corrosion, Serious eye damage
GHS Label Elements: Skull and crossbones, corrosion pictogram
Signal Word: Danger
Hazard Statements: Highly toxic if swallowed, toxic by skin contact and inhalation, causes severe burns to skin and serious eye injury, may cause respiratory irritation
Precautionary Statements: Avoid breathing vapors or dust, use only in well-ventilated areas, wear protective clothing, gloves, and eye/face protection, wash hands thoroughly after handling, keep locked up and out of reach of children
Chemical Name: Chloroacetic Acid
Concentration: 99-100%
CAS Number: 79-11-8
Impurities: Trace content of dichloroacetic acid and water possible depending on batch
Inhalation: Move affected person to fresh air, keep warm and at rest, seek immediate medical attention, give oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing, rinse skin immediately with water for at least 15 minutes, do not use neutralizing agents, seek medical attention for irritation or burns
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing and get prompt medical advice
Ingestion: Do not induce vomiting, rinse mouth with plenty of water if victim is conscious, get emergency medical help right away, do not give anything by mouth to an unconscious person
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical powder, carbon dioxide
Unsuitable Extinguishing Media: Do not use water jet directly on the substance
Hazards from Combustion: Gives off toxic and corrosive fumes such as hydrogen chloride, phosgene, carbon monoxide, and carbon dioxide upon burning
Protective Equipment: Firefighters require self-contained breathing apparatus and full protective gear
Advice: Keep containers cool using water spray, prevent runoff from fire control entering surface water or drains
Personal Precautions: Wear chemical-resistant gloves, protective clothing, and face protection, avoid breathing dust and vapors, evacuate area
Environmental Precautions: Prevent spillage from entering drains, watercourses, or soil
Methods for Cleanup: Absorb spill with inert material such as sand or earth, collect in tightly sealed containers for disposal, wash contaminated area with plenty of water, ventilate area
Disposal: Handle waste through licensed waste disposal contractor in line with regulations
Handling: Avoid generating dust or aerosols, keep away from heat and ignition sources, use explosion-proof equipment, wear PPE for all contact, don't eat, drink or smoke while handling
Storage: Store in tightly closed, corrosive-resistant containers, in a cool, dry, well-ventilated place away from incompatible materials such as strong bases, amines, oxidizers and reducing agents, ensure clear labeling, keep away from direct sunlight and moisture
Special Considerations: Use corrosion-resistant shelves and spill containment, keep storage area securely locked and controlled
Exposure Limits: OSHA PEL 0.5 ppm (CEILING), ACGIH TLV 0.5 ppm (skin), NIOSH REL 0.5 ppm (skin)
Engineering Controls: Local exhaust ventilation and closed handling systems are essential
Personal Protective Equipment: Chemical splash goggles, face shield, gloves (butyl rubber, neoprene), acid-resistant clothing, boots, positive pressure air-fed respirator for high exposures or inadequate ventilation
Hygiene Practices: Remove contaminated clothing and wash before reuse, wash hands after handling, emergency eyewash and shower stations in work area
Appearance: White crystalline solid
Odor: Pungent, vinegar-like
Odor Threshold: Not established
pH: 1.2 (1% solution)
Melting Point: 61°C
Boiling Point: 189°C
Flash Point: 127°C (closed cup)
Evaporation Rate: Not available
Flammability: Not flammable under normal conditions
Vapor Pressure: 2.67 Pa at 25°C
Vapor Density: 3.54 (air = 1)
Solubility: Soluble in water, alcohol, ether
Partition Coefficient (n-octanol/water): -0.22
Auto-ignition Temperature: 525°C
Decomposition Temperature: 189°C
Viscosity: Not established
Density: 1.58 g/cm³
Stability: Stable under recommended storage conditions
Hazardous Reactions: Reacts vigorously with strong bases, amines, oxidizing agents, generates heat and toxic fumes
Incompatible Materials: Alkalis, amines, strong oxidizers, reducing agents, metals
Hazardous Decomposition Products: Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide
Conditions to Avoid: Heat, sunlight, moisture, ignition sources, incompatible materials
Acute Toxicity: Oral LD50 (rat): 55 mg/kg, Dermal LD50 (rabbit): 193 mg/kg, Inhalation LC50 (rat, 4h): 0.38 mg/L
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Symptoms: Burning pain, severe skin and eye burns, respiratory distress, gastrointestinal burns, hemolysis, shock
Chronic Effects: Repeated exposure can cause dermatitis, dental erosion, respiratory tract damage
Sensitization: Not known to cause sensitization
Carcinogenicity: Not classified as carcinogen by IARC, NTP, or OSHA
Mutagenicity: Some in-vitro/in-vivo studies report mutagenic effects
Reproductive Toxicity: No known reproductive toxicity data
Toxicity to Aquatic Life: Highly toxic to aquatic organisms, LC50 (96h, fish): 24 mg/L, EC50 (48h, daphnia): 53 mg/L
Persistence and Degradability: Readily biodegradable under aerobic conditions, not expected to persist in environment
Bioaccumulation: Not expected to bioaccumulate (log Kow -0.22)
Mobility in Soil: High mobility due to water solubility, may leach to groundwater
Other Effects: Acidifies water rapidly, affects aquatic and terrestrial organisms if released
Waste Generation: Minimize wherever possible, keep wastes separated from incompatible substances
Methods: Transfer to licensed hazardous waste contractor for incineration or disposal, comply with local, state, national, and international requirements
Packaging: Empty containers can retain hazardous residue, triple rinse and manage as hazardous waste
Do Not: Dispose via sewer, surface water, or uncontrolled landfill
UN Number: UN1750
Proper Shipping Name: Chloroacetic Acid, Solid
Transport Hazard Class: 6.1 (Toxic)
Packing Group: II (medium danger)
Label Required: Toxic, Corrosive
Special Transport Precautions: Keep segregated from foodstuffs and incompatible materials, transport under cool and dry conditions
Environmental Hazard: Marked as marine pollutant if transported in bulk
TSCA: Listed in the US Toxic Substances Control Act inventory
SARA Title III: Subject to reporting under sections 302 (EHS), 313 (TRI), 311/312 (hazard categories)
REACH: Registered substance in Europe, subject to authorization and restriction requirements
OSHA: Regulated hazardous chemical under 29 CFR 1910.1200
Canada WHMIS: Classified as Class D1A (very toxic material), and Class E (corrosive material)
Other International Listings: Complies with Australia AICS, Japan ENCS, China IECSC, Korea ECL, New Zealand NZIoC, Philippines PICCS
Hazard Symbols: GHS06 (Toxic), GHS05 (Corrosive)
Other Recommendations: Follow national, state, and local regulations during transport, use, storage, and disposal
