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Material Safety Data Sheet: 1-Ethylbutanol

Identification

Product Name: 1-Ethylbutanol
Chemical Family: Alcohols
Chemical Formula: C6H14O
Synonyms: 1-Ethyl-1-butanol, Ethylbutyl alcohol
CAS Number: 628-81-9
Recommended Use: Solvent, intermediate in organic synthesis, laboratory chemical
Supplier: Provided by authorized distributor or manufacturer
Emergency Contact: Local poison control or national emergency hotline

Hazard Identification

Physical State: Colorless liquid
Odor: Distinctive, mild alcohol odor
Classification: Flammable liquid (Category 3), Acute toxicity (Category 4, oral), Eye irritation (Category 2A), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, harmful if swallowed, causes skin and serious eye irritation
Precautionary Statements: Keep away from heat, sparks, open flames, and hot surfaces, avoid breathing vapors, wear protective gloves and eye protection
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Target Organs: Eyes, skin, respiratory system, central nervous system

Composition / Information on Ingredients

Chemical Name: 1-Ethylbutanol
CAS Number: 628-81-9
Concentration: ≥98%
Impurities: Lower alcohols (<2%), mixed isomers (<0.5%)

First Aid Measures

General Advice: Remove contaminated clothing and seek prompt medical attention
Inhalation: Move person to fresh air, keep at rest, seek medical advice for dizziness or persistent symptoms
Skin Contact: Wash with soap and water for at least 15 minutes, remove contaminated clothing, seek medical help for persistent irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present, seek medical attention
Ingestion: Do not induce vomiting, rinse mouth, seek immediate medical advice, never give anything by mouth to an unconscious person

Fire-Fighting Measures

Suitable Extinguishing Media: Alcohol resistant foam, water spray, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Strong water jets may spread fire
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, irritating aldehydes, and smoke
Special Protective Equipment: Firefighters use self-contained breathing apparatus and protective clothing
Specific Fire Hazards: Vapors may form explosive mixtures with air, vapors are heavier than air and may travel along surfaces to distant ignition sources
Additional Information: Cool containers exposed to fire with water spray

Accidental Release Measures

Personal Precautions: Evacuate area, eliminate ignition sources, ventilate space, use personal protective equipment
Environmental Precautions: Prevent entry into drains, soil, waterways, contain spill with sand or non-combustible absorbent
Clean-Up Methods: Use inert absorbent material (sand, earth), collect in tightly closed containers for disposal, ventilate affected area thoroughly
Emergency Procedures: Notify authorities if substantial spill occurs

Handling and Storage

Safe Handling: Avoid contact with skin, eyes, clothing, use in well-ventilated areas, employ grounding and bonding to prevent static discharge
Storage Requirements: Store in tightly closed containers in cool, dry, well-ventilated area, away from heat, sparks, and open flames, segregate from oxidizers, acids, and strong bases
Packaging Materials: Compatible with stainless steel, glass, polyethylene containers
Incompatible Conditions: Elevated temperatures, oxidizing materials, strong acids

Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific TLV established for 1-Ethylbutanol, recommend following general organic solvent exposure limits (ACGIH TWA 100 ppm as guidance)
Engineering Controls: Provide local exhaust ventilation, maintain air concentrations at lowest practical levels
Respiratory Protection: Use NIOSH/OSHA approved organic vapor respirator if ventilation is inadequate
Skin Protection: Wear chemical-resistant gloves (nitrile, neoprene), long sleeves
Eye Protection: Use chemical splash goggles and face shield for risk of splashing
Hygiene Practices: Wash hands after handling, remove contaminated clothing, avoid eating or drinking in work area

Physical and Chemical Properties

Appearance: Clear, colorless liquid
Odor: Mild, alcohol-like
Odor Threshold: Not established
pH: Not applicable
Melting Point/Freezing Point: −90°C to −85°C
Boiling Point: 138–143°C
Flash Point: 42–46°C (closed cup)
Evaporation Rate: Moderate (no specific value)
Flammability (solid, gas): Not applicable (liquid)
Upper/Lower Flammability or Explosive Limits: LEL 1.0%, UEL 6.7% (estimated)
Vapor Pressure: 6.5 mmHg at 20°C
Vapor Density (air=1): 3.6
Relative Density: 0.810 at 20°C
Solubility: Slightly soluble in water, miscible with many organic solvents
Partition Coefficient (n-octanol/water): 1.8 (estimated)
Auto-Ignition Temperature: 310–340°C
Decomposition Temperature: Not established
Viscosity: 3–4 mPa·s at 20°C

Stability and Reactivity

Chemical Stability: Stable under normal storage and handling conditions
Reactivity: May react with strong oxidizing agents, acids, and alkali metals
Possibility of Hazardous Reactions: Vapors can form explosive mixtures with air, exothermic polymerization does not occur
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, possible traces of formaldehyde in fire conditions
Conditions to Avoid: Heat, flame, sparks, sources of ignition, incompatible substances

Toxicological Information

Acute Toxicity (oral): LD50 (rat) 2150 mg/kg
Acute Toxicity (dermal): LD50 (rabbit) > 2000 mg/kg
Acute Toxicity (inhalation): No data available for pure compound, expect irritation at high vapor concentrations
Skin Irritation: Causes mild to moderate irritation on prolonged contact
Eye Irritation: Causes severe irritation, risk of serious eye damage
Respiratory Effects: Vapors may cause dizziness, headache, or drowsiness
Sensitization: Not known to cause respiratory or skin sensitization
Chronic Effects: Prolonged or repeated exposure may cause defatting of skin and dermatitis
Mutagenicity/Carcinogenicity: No evidence found in available studies
Developmental/Reproductive Toxicity: No evidence found in available studies

Ecological Information

Ecotoxicity: Harmful to aquatic life at high concentrations, toxic to fish (LC50 < 100 mg/L 96h, species: fish, Daphnia)
Persistence and Degradability: Readily biodegradable under aerobic conditions, average biodegradation time below 28 days
Bioaccumulation Potential: Low due to rapid breakdown and moderate water solubility
Mobility in Soil: Moderate, likely to volatilize or degrade before reaching groundwater
Other Adverse Effects: Potential for local water pollution if spilled in large quantities, disrupts aquatic environments temporarily

Disposal Considerations

Disposal Methods: Incinerate at approved chemical disposal facility, do not release to sewers or surface waters
Container Disposal: Triple rinse, puncture, and recycle or dispose in accordance with local regulations
Legal Requirements: Dispose in accordance with federal, state, and local environmental control regulations
Special Precautions: Avoid open burning or dumping, do not landfill in uncontrolled sites

Transport Information

UN Number: UN 1987
Proper Shipping Name: Alcohols, n.o.s. (1-Ethylbutanol)
Transport Hazard Class: 3 (Flammable liquids)
Packing Group: III
Marine Pollutant: Not classified as marine pollutant
Environmental Hazards: Avoid transport with food and feedstuffs
Special Precautions for Transport: Use leak-proof containers, secure upright, comply with national and international shipping requirements

Regulatory Information

OSHA: Considered hazardous based on flammability and toxicity criteria
TSCA (USA): Listed
SARA Title III: Not listed in Section 302, 304, 313
DSL (Canada): Listed
WHMIS Classification: B2 (Flammable liquid), D2B (Toxic material)
REACH Status: Registered
Other Regulations: Check local legislation and chemical safety acts for additional requirements
Labeling Requirements: Must have hazard pictograms for flammable liquid, irritant; include signal word and hazard statements