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Product Name: Isobutyraldehyde
Chemical Formula: C4H8O
CAS Number: 78-84-2
Molecular Weight: 72.11 g/mol
Common Names: 2-Methylpropanal, Isobutanal
Recommended Use: Intermediate in organic synthesis, solvent in chemical industries
Manufacturer Details: Manufacturer’s address and emergency contact provided on product label and safety package
Emergency Phone Number: Stated on the shipping paperwork and product packaging
Hazard Classification: Flammable liquid, Acute toxicity (oral and inhalation), Eye irritation, Skin irritation
Label Elements: Flammable Liquid pictogram, Health hazard symbol
Signal Word: Danger
Hazard Statements: Causes eye and skin irritation, May be harmful if swallowed, Produces irritating vapors, Risk of fire due to low flash point
Precautionary Statements: Keep away from heat or sparks, Avoid breathing vapors, Use only outdoors or in a well-ventilated area, Wear protective gloves and goggles, Wash hands after handling, Store securely
Chemical Name: Isobutyraldehyde
Synonyms: 2-Methylpropanal
Concentration: 99–100% by weight
Impurities: Trace amounts of higher aldehydes and water depending on manufacturing process
Additional Ingredients: None reported for pure commercial grade
Inhalation: Move person into fresh air immediately, loosen clothing, administer oxygen if breathing is difficult, seek medical attention for symptoms such as coughing, dizziness, or irritation
Skin Contact: Remove contaminated clothing, flush area with large amounts of water for at least 15 minutes, wash with soap, obtain medical advice if redness or irritation develops
Eye Contact: Rinse eyes cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, seek prompt medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, obtain immediate medical attention
Suitable Extinguishing Media: Carbon dioxide, alcohol-resistant foam, dry chemical powder
Unsuitable Media: Water jet may spread fire
Specific Hazards: Highly flammable liquid and vapor, can form explosive mixtures with air, vapors may travel to ignition source
Protective Equipment: Full protective gear, self-contained breathing apparatus, avoid inhaling fumes
Firefighting Instructions: Cool exposed containers with water spray, remove containers from fire area if safe, avoid contact with spilled material
Decomposition Products: Carbon monoxide, carbon dioxide, irritating aldehydes and vapors
Personal Precautions: Evacuate area, ventilate space, remove all ignition sources
Protective Equipment: Chemical resistant gloves, goggles, flame-resistant clothing, respiratory protection for high concentrations
Cleanup Methods: Stop leak if safe, absorb spill with inert ground material (sand, earth), collect and place in suitable disposal containers, flush area with water once material is removed
Environmental Precautions: Prevent entry into drains, watercourses, or soil, notify authorities if significant amount enters environment
Handling: Use spark-proof tools, ground containers during transfer, avoid splashing or aerosol generation, minimize breathing of vapors, no smoking, eating, or drinking in area
Storage Conditions: Store in cool, dry, well-ventilated location away from heat or ignition sources, keep container tightly sealed, avoid sunlight and static electricity
Incompatible Materials: Strong oxidizers, acids, alkalis, amines, peroxides, reducing agents
Permissible Limits: OSHA TWA: 25 ppm (ceiling), ACGIH TWA: 50 ppm (ceiling)
Engineering Controls: Use local exhaust ventilation, explosion-proof mechanical ventilation in confined areas, use closed systems where possible
Respiratory Protection: NIOSH-approved organic vapor respirator for high concentrations or spills
Eye Protection: Chemical splash safety goggles or face shield
Skin Protection: Nitrile or neoprene gloves, flame-resistant laboratory coats or aprons
General Hygiene: Wash thoroughly after handling, remove and clean contaminated clothing before reuse
Appearance: Colorless liquid
Odor: Pungent, suffocating odor
Odor Threshold: 1.2 ppm (est.)
pH: Not applicable
Melting Point: -65 °C
Boiling Point: 63–67 °C
Flash Point: -18 °C (closed cup)
Evaporation Rate: Rapid
Flammability: Highly flammable liquid and vapor
Upper/Lower Flammability Limits: 1.7% (lower), 12.5% (upper)
Vapor Pressure: 180 mmHg at 20 °C
Vapor Density: 2.5 (air = 1)
Solubility: Slightly soluble in water, miscible with organic solvents
Auto-ignition Temperature: 200 °C
Partition Coefficient (log Kow): 0.86
Decomposition Temperature: Not established
Viscosity: Low, mobile liquid
Chemical Stability: Stable under recommended conditions, sensitive to air and light, may form peroxides
Reactivity: May react with strong oxidizing agents, strong bases, acids, and amines
Hazardous Reactions: Polymerizes rapidly in presence of acids
Decomposition: Produces toxic fumes of carbon monoxide and carbon dioxide upon decomposition
Conditions to Avoid: Heat, flame, spark, static discharge, incompatible materials
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat): 620 mg/kg; Dermal LD50 (rabbit): 1320 mg/kg; Inhalation LC50 (rat, 4h): 8000 ppm
Symptoms: Irritation to eyes, skin, nose, throat; coughing, headache, nausea, dizziness, unconsciousness at high exposure
Chronic Effects: Long term exposure might sensitize respiratory system, cause skin dermatitis, or aggravate pre-existing lung disorders
Carcinogenic Status: Not listed as carcinogen by IARC, NTP or OSHA
Mutagenicity: No strong evidence from available studies
Reproductive Effects: No documented reproductive toxicity in humans
Ecotoxicity: Harmful to aquatic organisms due to high chemical oxygen demand
Persistence/Degradability: Readily biodegradable under aerobic conditions
Bioaccumulative Potential: Low, partition coefficient indicates little bioaccumulation
Mobility in Soil: Moderate, may volatilize from soil and water surfaces
Other Adverse Effects: May contribute to local air pollution if released in large quantities, vapor hazard for wildlife near industrial releases
Waste Generation: Collect excess and residue in suitable sealed containers for licensed hazardous waste disposal
Disposal Methods: Incinerate in approved facility with appropriate air pollution controls, avoid landfilling whenever possible
Container Handling: Triple rinse empty containers, puncture, and send to approved drum reconditioner or recycler
Regulations: Comply with local, regional, and national laws concerning hazardous waste
Avoid Release: Never pour down drain or into water bodies
UN Number: UN 1129
Proper Shipping Name: Isobutyraldehyde
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: II
Label Required: Flammable Liquid (red diamond)
Environmental Hazards: Considered marine pollutant in bulk shipping
Special Precautions: Secure containers, keep upright, ventilate cargo holds, segregate from sources of heat, sparks, or strong oxidizers
Emergency Response Guide Number: 130
OSHA Status: Classified as hazardous material under OSHA regulations
SARA 313: Subject to reporting requirements
TSCA Status: Listed on US Toxic Substances Control Act inventory
EU Regulations: Included in REACH registry, subject to special handling and safety data requirements
Other Local Standards: Comply with workplace chemical safety laws and hazard communication rules in region of use
Labeling: Must be labeled as flammable and health hazard under hazardous communications rules
Community Right to Know: Covered under federal and state community right-to-know laws
Inventory Listings: Included in Canada DSL, Australia AICS, China IECSC, Japan ENCS, Korea ECL, Philippines PICCS, New Zealand NZloC
