Chemical Name: Acetic Acid
Synonyms: Glacial acetic acid, Ethanoic acid
CAS Number: 64-19-7
Uses: Vinegar manufacture, food preservatives, adhesives, vinyl acetate monomer production, solvents for printing & dyeing
Appearance: Clear, colorless liquid with distinct pungent odor familiar in most chemical production floors
Health Hazards: Severe irritation to skin and eyes, possible reversible or irreversible protein denaturation, respiratory discomfort above low ppm threshold
Environmental Hazards: Harm to freshwater species at measurable concentrations, acidification risk for local waterways if not contained
Physical Hazards: Flammable liquid, risk of explosion in poorly ventilated areas with ignition sources present
GHS Classification: Flammable liquid (Category 3), corrosive to metals, causes serious eye damage (Category 1), causes skin burns (Category 1)
Pictograms (for reference): Flame, corrosive, exclamation mark
Component: Acetic Acid
Concentration: Industrial-grade acetic acid typically above 99% for most manufacturing inputs, remainder trace water and possible organic impurities
Molecular Formula: C2H4O2
Molecular Weight: 60.05 g/mol
Inhalation: Move to uncontaminated air zone immediately, access medical support fast if cough or breathing trouble begins
Skin Contact: Flush area with generous flowing water, strip contaminated clothing, watch for skin whitening or burning
Eye Contact: Rinse eyes under running water for over fifteen minutes, get direct clinical assessment if pain or blurred vision appears
Ingestion: Rinse mouth, avoid inducing vomiting, get hospital safeguards as chemical burns in esophagus or stomach can escalate
Special Notes: Trained response teams practice these protocols regularly due to the frequency of minor spills in bulk transfer areas
Suitable Extinguishing Media: Alcohol-resistant foam, dry powder, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet as it spreads spillage
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, irritating acrid fumes
Special Precautions: Full protective gear, positive-pressure breathing apparatus kept ready for all large storage zones
Additional Observations: Fire drills feature acetic acid spills because vapor clouds can drift and ignite remote from origin
Personal Precautions: Chemical-resistant boots, rubber gloves, eye shields, avoid direct vapors with fit-tested respirators
Environmental Precautions: Block drains on plant floors, use sand or inert absorbent, avoid acid run-off into factory effluents
Cleanup Methods: Neutralize spills with soda ash or lime, collect in marked sealed drums for hazardous disposal runs
Notes from Experience: We see that quick perimeter controls always prevent wider facility impact, practice matters more than theory
Handling: Mechanical ventilation keeps air safe for workers, use closed systems where practical, avoid sources of ignition in pumping rooms
Safe Storage Conditions: Stainless steel tanks preferred, polyethylene and glass containers can be used for laboratory or small stock
Segregation: Kept clear of oxidizers, alkalines, cyanides as dangerous gas releases and violent reactions remain possible
General Practice: Occupational routines include weekly inspection, lid and seal checks, and area air sampling to detect leaks early
Control Parameters: Long-term exposure limit in air set at 10 ppm by most authorities, short-term spikes at 15 ppm
Engineering Controls: Local exhaust hoods over open transfer points, automated filling lines where available
Personal Protective Equipment: Acid-resistant aprons, gloves, goggles, face shields, half-mask respirators where vapor alarms signal excess concentration
Hygiene Measures: Soap and water stations immediately near work zones, regular training cycles for spill suit donning and doffing
Physical State: Liquid
Color: Colorless
Odor: Vinegar-like, sharply penetrating
Boiling Point: 118°C
Melting Point: 16.6°C
Flash Point: 39°C closed cup
Explosive Limits: 4% - 19.9% (by volume in air)
Solubility: Mixes readily with water in all proportions
Density: 1.05 g/cm³ at ambient factory temperature
Vapor Pressure: Factory storage areas see 15 mmHg at 20°C
Chemical Stability: Reliable under normal dry warehouse conditions, but reacts fiercely with strong oxidizers and concentrated alkalis
Reactivity: Releases heat and fumes mixing with water, forms dangerous gases contacting strong reducing agents
Hazardous Reactions: Explosive mixtures with peroxides, chlorine compounds, or potassium permanganate
Industry Insights: Batch processors and blending tanks use isolation barriers and interlocks to keep substances divided until checked
Acute Toxicity: Inhalation at 1000 ppm rapidly causes breathing distress, skin burns from short-term high-concentration contact
Chronic Exposure Risks: Repeated skin exposure brings risk of dermatitis, chronic low-level inhalation can lead to nosebleeds and possible bronchitis
Other Risks: Employees with existing respiratory conditions react faster and more sensitively, so fitness for duty screening reduces incident rates
Ecotoxicity: Harmful to aquatic organisms at parts per million, pH shift can upset biological treatment plants
Persistence and Degradability: Rapidly biodegrades under most conditions, but acute doses overwhelm biological capacity in wastewater facilities
Bioaccumulation: Low risk by natural breakdown pathways observed in regular effluent testing
Notes from Monitoring: Site discharges are batch-tested and must meet pH laws and organic loading caps before release
Waste Treatment Methods: Neutralize with lime then ship for processing by licensed firms, lab-grade acids handled as hazardous sludges
Container Handling: Triple rinse process for empty drums, container recycling through certified partners
On-Site Recommendations: Direct dumps never permitted, documentation recorded for every load consigned out
UN Number: 2789
Proper Shipping Name: Acetic acid, glacial
Hazard Class: 8 (corrosive), 3 (flammable liquid)
Packing Group: II (medium danger)
Key Practice: Bulk road tankers fitted with emergency stop valves, weekly training refreshers for drivers on chemical controls, spill kits on every vehicle
Workplace Regulations: Occupational exposure limits strictly enforced, annual medicals for staff in contact zones
Environmental Regulations: Water discharges subject to routine reporting under regional clean water acts, site licenses audited for tank integrity
Transportation Rules: All shipments tracked, placarded, and logged with transport registry
Labelling: On-site stocks carry GHS-compliant labels and hazard markings; all containers readable from storage aisles to ensure error-free handling
