Product Name: Delta-Valerolactone
Synonyms: δ-Valerolactone, 5-Valerolactone
Chemical Formula: C5H8O2
CAS Number: 542-28-9
Recommended Use: Chemical intermediate, solvent
Supplier Details: Manufacturer contact information on shipping paperwork
Emergency Phone: Refer to chemical shipment label or local poison control center
Classification: Flammable liquid, eye irritant, skin irritant
Hazard Statements: Causes skin and eye irritation; may cause respiratory tract irritation; vapors can form explosive mixtures with air
Signal Word: Warning
Pictograms: Exclamation mark, Flame
Precautionary Statements: Wash exposed skin thoroughly, wear gloves and safety goggles, keep container tightly closed, keep away from heat sources and ignition points, avoid inhaling vapors
Chemical Identity: Delta-Valerolactone
Chemical Formula: C5H8O2
Concentration: ≥99%
Impurities/Additives: Low levels of water, possible traces of organic acids or solvents
Inhalation: Remove exposed individual to fresh air, keep warm, monitor breathing, seek medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with soap and water, seek medical advice if irritation persists
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing and get medical attention if irritation develops
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention, never give anything by mouth if unconscious
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray
Unsuitable Extinguishing Media: Strong water jets
Hazards Arising From Combustion: Carbon monoxide, carbon dioxide, irritating fumes
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective gear
Firefighting Tactics: Keep containers cool by spraying with water, prevent runoff from entering waterways
Precautions: Evacuate area, ventilate, keep away all ignition sources
Personal Precautions: Wear protective clothing, chemical-resistant gloves, safety goggles, respiratory protection
Spill Cleanup: Absorb spill with inert material like sand or vermiculite, transfer to waste container for disposal
Environmental Precautions: Prevent entry into sewers or waterways, contact appropriate authorities if large spill occurs
Handling: Use only in well-ventilated areas, avoid contact with skin, eyes, avoid inhaling vapors, keep away from flames and static discharge
Storage: Store in tightly sealed container, in a cool, dry, ventilated place, away from incompatible chemicals such as acids, oxidizers, and bases
Incompatible Materials: Strong bases, strong oxidizers, strong acids
Special Notes: Store away from direct sunlight, keep containers upright
Exposure Limits: No established occupational exposure limit (check country-specific guidelines)
Engineering Controls: Local exhaust ventilation, explosion-proof equipment
Personal Protective Equipment: Safety goggles, protective gloves (nitrile or neoprene), long-sleeved lab coat or chemical-resistant apron, suitable respirator for high vapor concentrations
Hygiene Measures: Wash hands after handling, do not eat or drink during use, keep work area clean
Appearance: Colorless liquid
Odor: Slightly sweet, ester-like
Odor Threshold: Not available
pH: Not applicable
Melting Point: -30°C
Boiling Point: 207-208°C
Flash Point: 91°C (closed cup)
Evaporation Rate: Not established
Flammability: Flammable liquid
Upper/Lower Explosive Limits: Data not available
Vapor Pressure: 0.25 mmHg at 25°C
Vapor Density: 3 (air = 1)
Relative Density: 1.056 g/cm³ at 20°C
Solubility: Miscible with water and many organic solvents
Partition Coefficient (n-octanol/water): 0.13
Auto-ignition Temperature: 287°C
Decomposition Temperature: Not determined
Viscosity: 2.1 mPa·s at 20°C
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: Reacts with strong oxidizing agents, acids, bases
Hazardous Reactions: May polymerize under improper conditions, avoid contact with moisture under storage
Conditions to Avoid: High temperatures, sources of ignition, moisture, direct sunlight
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, other organic vapors
Routes of Entry: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat): 830 mg/kg; LD50 (dermal, rabbit): not available
Symptoms: Irritation to eyes, skin, respiratory tract; dizziness or drowsiness from inhaling high vapor levels
Chronic Effects: Prolonged or repeated exposure may cause dermatitis, respiratory sensitization
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Other Data: May cause central nervous system effects at high exposure levels
Ecotoxicity: Harmful to aquatic life with long lasting effects, toxic to some fish and invertebrates
Environmental Persistence: Moderately biodegradable, may persist in certain environmental compartments
Bioaccumulation Potential: Low to moderate based on partition coefficient
Mobility in Soil: Mobile, potential to infiltrate groundwater
Other Adverse Effects: No data on ozone depletion or global warming potential
Waste Disposal Methods: Dispose according to local, regional, national, and international laws and regulations, send to licensed hazardous waste facility
Container Disposal: Triple rinse container, puncture and offer for recycling if available or dispose as hazardous waste
Special Precautions: Do not release into drains, environment, or surface water
UN Number: UN 3272
Proper Shipping Name: Esters, N.O.S. (Delta-Valerolactone)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Marine Pollutant: No
Transport Labels: Flammable liquid
Special Precautions: Secure containers, avoid contact with incompatible materials during transit
Inventory Status: Listed on TSCA (USA), EINECS (EU), AICS (Australia), DSL (Canada)
Labeling Requirements: According to local and international GHS classification
SARA Title III: Not listed as extremely hazardous or toxic chemical
California Proposition 65: Not listed
Other Regulations: Subject to workplace hazard communication, ensure appropriate training and provision of information to workers
Workplace Exposure Limit: Not specifically regulated; follow general industrial hygiene guidance
