Product Name: Propionic Acid
Supplier: Shandong Kunda Biotechnology Co., Ltd.
Synonyms: Propanoic acid
CAS Number: 79-09-4
Recommended Use: Preservative, chemical intermediate, pharmaceutical applications
Contact Information: Customer Service, Emergency Phone Number available on company website
Address: Industrial Park, Shandong Province, China
Hazard Class: Corrosive to skin and eyes
GHS Classification: Skin corrosion/irritation (Category 1B), Serious eye damage (Category 1), Acute toxicity (Oral, Category 4)
Label Elements: Danger, Skull and crossbones, Corrosion pictogram
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage. Harmful if swallowed. May cause respiratory irritation.
Precautionary Statements: Avoid breathing dust, fume, gas, mist, vapors, spray. Wash hands thoroughly after handling. Wear protective gloves, clothing, and eye protection. In case of inadequate ventilation, wear respiratory protection.
Other Hazards: Pungent odor, volatile, can release flammable vapors.
Chemical Name: Propionic Acid
CAS Number: 79-09-4
Concentration: ≥99% (typical)
Impurities: Trace amounts of water, acetic acid, and butyric acid
Molecular Formula: C3H6O2
Molecular Weight: 74.08 g/mol
Inhalation: Remove person to fresh air, keep at rest, seek medical attention if symptoms persist.
Skin Contact: Immediately remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, obtain medical advice.
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, get medical help at once.
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention.
Most Important Symptoms: Burning sensation, coughing, redness, blisters, severe eye damage, irritation of mucous membranes.
Notes to Physician: Treat symptomatically, monitor for respiratory complications.
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: High-pressure water jets
Hazards from Combustion: Releases irritating, corrosive, and/or toxic gases including carbon oxides
Special Protective Actions: Firefighters should wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Isolate area, keep unnecessary personnel away, use water spray to cool containers, prevent run-off to sewers and waterways
Explosion Risk: Vapors may form explosive mixtures with air above flashpoint
Personal Precautions: Ventilate area, avoid breathing vapors, avoid contact with skin, eyes, or clothing, remove all sources of ignition, evacuate personnel to safe areas
Environmental Precautions: Prevent further leakage or spillage if safe to do so, do not allow entry into drains, water courses, or soil
Methods for Clean-up: Wear appropriate protective equipment, soak up with inert absorbent material (sand, diatomaceous earth), collect and dispose of in proper container, wash spill area with plenty of water
Emergency Procedures: Follow local regulations, inform authorities if necessary
Handling: Use only in well-ventilated areas, keep away from heat, sparks, and open flames, avoid contact with skin, eyes, and clothing, do not breathe vapors or mists, wash thoroughly after handling
Storage: Store in tightly closed container, keep in a cool, dry, well-ventilated place, away from incompatible substances such as alkalis and oxidizers, protect from sunlight, corrosion-resistant packaging recommended
Specific Uses: Industrial application only, restrict access to trained personnel, keep emergency washing facilities easily accessible
Occupational Exposure Limits: Propionic Acid: ACGIH TLV 10 ppm (29 mg/m3) TWA
Engineering Controls: Provide local exhaust ventilation where vapors may be generated, use closed process systems where possible, install eyewash stations and safety showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile or butyl rubber), safety goggles or face shield, flame-retardant lab coat, long pants, closed-toe shoes
Respiratory Protection: Use appropriate respiratory protection in high vapor concentrations or confined spaces
Hygiene Measures: Wash hands and face before breaks or at end of work, remove contaminated clothing and wash before reuse
Appearance: Clear, colorless liquid
Odor: Pungent, irritating
Odor Threshold: 0.16 ppm
pH: 2.5 (1% w/w solution)
Melting Point/Freezing Point: -24 °C
Boiling Point: 141 °C
Flash Point: 54 °C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Upper/Lower Explosive Limits: 2.5% - 12% (v/v)
Vapor Pressure: 4 mmHg (20°C)
Vapor Density: 2.5 (air=1)
Density: 0.993 g/cm³ (20°C)
Solubility: Miscible with water, ethanol, ether
Partition Coefficient (n-octanol/water): 0.33
Auto-ignition Temperature: 485 °C
Decomposition Temperature: Not available
Viscosity: 1.23 mPa·s (20°C)
Chemical Stability: Stable under recommended handling and storage conditions
Possibility of Hazardous Reactions: May react with strong oxidizing agents and bases
Conditions to Avoid: Heat, flame, sources of ignition, incompatible materials
Incompatible Materials: Strong bases, strong oxidizers, reducing agents, metals
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating and toxic fumes, acrid smoke
Acute Toxicity: Oral LD50 (rat): 2600 mg/kg
Skin Corrosion/Irritation: Causes severe burns on contact
Eye Damage/Irritation: Causes irreversible eye injury
Respiratory Sensitization: May cause respiratory tract irritation
Skin Sensitization: No data available for sensitization
Germ Cell Mutagenicity: Not classified based on available data
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Reproductive Toxicity: No evidence from available studies
Specific Target Organ Toxicity (STOT): May cause damage to mucous membranes and upper respiratory tract with repeated or prolonged exposure
Other Effects: Prolonged or repeated exposure may cause dermatitis, respiratory discomfort, long-term damage to eyes
Aquatic Toxicity: LC50 (fish, 96h): 51 mg/L (Oncorhynchus mykiss)
EC50 (daphnia, 48h): 118 mg/L
Persistence and Degradability: Readily biodegradable in natural environment
Bioaccumulation Potential: Low (log Kow 0.33)
Mobility in Soil: High mobility, soluble in water, may leach into groundwater
Other Adverse Effects: May lower pH of water locally, could cause transient harm to aquatic organisms at high concentrations
Waste Treatment Methods: Dispose in accordance with national and local regulations. Do not pour into sewer systems
Product Disposal: Incinerate in a permitted chemical incinerator with afterburner and scrubber. Consider chemical recycling if possible
Contaminated Packaging: Rinse containers, treat as hazardous waste, return to supplier or qualified recycler
Additional Advice: Avoid contamination of water bodies; seek advice from licensed waste disposal companies
UN Number: UN3463
Proper Shipping Name: Propionic Acid
Transport Hazard Class: 8 (Corrosive); 3 (Flammable Liquid)
Packing Group: III
Marine Pollutant: No
Special Precautions: Keep upright, secure containers, segregate from foodstuffs, avoid temperature extremes
Transport Labels: Corrosive, Flammable Liquid
TSCA Inventory: Listed
REACH Status: Registered substance, available under ECHA
OSHA Hazards: Highly corrosive, flammable
SARA 302/313 Components: Not regulated
Clean Air Act: Not listed as a hazardous air pollutant
International Inventories: Listed in DSL/NDSL (Canada), EINECS (EU), ENCS (Japan), AICS (Australia)
Labeling According to GHS: Danger. Causes severe burns to skin and eyes. Harmful if swallowed. Flammable liquid and vapor.
Other Local Regulations: May be subject to additional state, municipal, or country-specific regulations; consult responsible authorities for full compliance.
