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Material Safety Data Sheet: Isopropyl N-Butyrate

Identification

Product Name: Isopropyl N-Butyrate
Chemical Formula: C7H14O2
Synonyms: Isopropyl butanoate
Recommended Use: Solvent, flavoring agent, fragrance component
Manufacturer: Provided upon request
Emergency Telephone Number: Available on shipment paperwork
CAS Number: 97-85-8
UN Number: 3272
Molecular Weight: 130.19 g/mol
Contact Person: Refer to supplier documentation

Hazard Identification

Physical State: Colorless liquid
GHS Classification: Flammable liquid (Category 3), Skin irritant (Category 2), Eye irritant (Category 2A)
Hazard Statements: Flammable liquid and vapor, may cause skin and eye irritation, harmful if swallowed
Pictogram: Flame, Exclamation mark
Signal Word: Warning
Precautionary Statements: Keep away from open flames, avoid breathing vapors, wash hands thoroughly after handling, use only in well-ventilated areas
Potential Acute Effects: Skin and eye irritation, headache, dizziness
Potential Chronic Effects: Prolonged or repeated exposure may dry skin or cause dermatitis

Composition / Information on Ingredients

Chemical: Isopropyl N-Butyrate
Concentration: 98–100%
Impurities: Negligible, controlled under regulatory levels
Other Ingredients: None known to contribute additional hazards at the stated purity

First Aid Measures

Inhalation: Move to fresh air, seek medical attention if symptoms develop
Skin Contact: Remove contaminated clothing, wash affected area with soap and water
Eye Contact: Rinse carefully with water for at least 15 minutes, remove contact lenses, call a physician if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, call poison control or seek medical help
Main Symptoms: Irritation of skin, eyes, respiratory tract; headache, stomach discomfort if ingested

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam
Hazards from Combustion: Emits toxic fumes of carbon monoxide and carbon dioxide
Fire Fighting Instructions: Wear full protective gear, use self-contained breathing apparatus
Additional Advice: Cool containers with water spray to prevent rupture
Special Protective Actions: Evacuate area, avoid inhalation of vapors or decomposition products

Accidental Release Measures

Personal Precautions: Avoid contact with skin and eyes, ensure adequate ventilation, eliminate ignition sources
Environmental Precautions: Prevent entry into drains, surface water, and soil
Methods for Cleaning Up: Contain spill using inert absorbent material such as sand or earth, scoop into appropriate container for disposal
Disposal Instructions: Refer to local regulations for chemical waste disposal
Further Advice: Use personal protective equipment including gloves and goggles during cleanup

Handling and Storage

Handling Recommendations: Ground and bond containers when transferring liquid, avoid splashing, do not eat, drink, or smoke in work area
Technical Measures: Use non-sparking tools, maintain good ventilation, avoid accumulation of static charges
Storage Conditions: Keep tightly closed in a cool, dry, and well-ventilated place away from direct sunlight and heat sources
Incompatibilities: Strong oxidizing agents, acids, alkalis
Packaging Materials: Store in approved containers made from compatible materials such as stainless steel or certain plastics
Other Instructions: Keep away from foodstuffs and animal feed, label all containers properly

Exposure Controls and Personal Protection

Occupational Exposure Limits: Not established for this substance, maintain general exposure as low as reasonably practicable
Engineering Controls: Ensure local exhaust ventilation at points of emission, use explosion-proof electrical systems
Personal Protective Equipment (PPE): Chemical-resistant gloves (e.g., nitrile), safety goggles or face shield, flame-resistant clothing or lab coat
Respiratory Protection: Use an approved respirator during procedures with high vapor risk or limited ventilation
Hygiene Measures: Wash hands, forearms, and face after handling, launder contaminated clothing before reuse

Physical and Chemical Properties

Appearance: Colorless liquid
Odor: Fruity, ester-like
Boiling Point: 154–160°C
Melting Point: -70°C
Flash Point: 41°C (closed cup)
Autoignition Temperature: 450°C
Vapor Pressure: 4.1 mmHg at 25°C
Specific Gravity: 0.87 at 20°C
Solubility in Water: Slightly soluble
Partition Coefficient (log Kow): Estimated around 2.1
Viscosity: Low, flows easily
Evaporation Rate: Moderate compared to water
pH: Not applicable

Stability and Reactivity

Stability: Stable under recommended storage conditions
Hazardous Reactions: May react with strong oxidizers producing heat and toxic gases
Conditions to Avoid: Heat, sparks, open flames, static discharge
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, other organic vapors
Polymerization: Will not occur under normal conditions
Incompatibility: Avoid mixing with strong acids, alkalis, oxidizers

Toxicological Information

Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: LD50 (oral, rat): >4000 mg/kg; LD50 (dermal, rabbit): >2000 mg/kg
Skin Irritation: May cause mild to moderate irritation
Eye Irritation: Causes reddening, tearing, or discomfort
Sensitization: No reports of skin sensitization
Chronic Toxicity: No comprehensive long-term studies in humans; prolonged exposure may dry skin or result in dermatitis
Other Effects: Central nervous system depression possible after significant inhalation; no evidence of carcinogenicity, mutagenicity, or reproductive toxicity as per available tests

Ecological Information

Toxicity to Aquatic Organisms: Acute LC50 (fish, daphnia): moderate toxicity
Persistence and Degradability: Biodegradable; expected to degrade in aerobic conditions
Bioaccumulation Potential: Low, bioaccumulation is unlikely
Mobility in Soil: Moderate mobility; may leach to groundwater if spilled
Other Adverse Effects: Avoid release into the environment, as larger quantities could harm aquatic life
Environmental Fate: Will volatilize from surface waters, breaks down via photolysis and oxidative methods

Disposal Considerations

Waste Disposal Methods: Burn in a chemical incinerator equipped with afterburner and scrubber under controlled conditions
Container Cleaning: Triple rinse with appropriate solvent, ensure all residues are destroyed
Local Disposal Requirements: Follow requirements set by municipal, regional, or national authorities
Contaminated Packaging: Treat as hazardous waste, avoid reuse without thorough cleaning
Special Precautions: Prevent leaks during transit to authorized disposal contractor

Transport Information

UN Number: 3272
Proper Shipping Name: Esters, n.o.s. (contains Isopropyl N-Butyrate)
Hazard Class: 3 (Flammable liquid)
Packing Group: III
Label Requirements: Flammable liquid label on all containers
Sea Transport (IMDG): Classified under Class 3, EMS F-E, S-D
Air Transport (ICAO/IATA): Listed as regulated under Class 3
Environmental Hazards: None identified in transport regulations
Transport in Bulk: Comply with MARPOL Annex II and IBC code

Regulatory Information

Inventory Listings: Registered in major chemical inventories including TSCA (USA), REACH (EU), DSL (Canada)
SARA Title III (USA): Not listed as an extremely hazardous substance
Right-to-Know Information (USA): Listed under Pennsylvania, New Jersey, and California regulations for hazardous substances
OSHA Status: Treated as hazardous under OSHA Hazard Communication Standard
REACH Requirement (EU): Pre-registered or fully registered per manufacturer
Label Phrases: Flammable liquid, causes skin and eye irritation
Other Environmental Regulations: Follow additional local and national environmental protection regulations regarding storage, use, and disposal