Product Name: Diisobutyl Ketone
Synonyms: 2,6-Dimethyl-4-heptanone
Chemical Formula: C9H18O
CAS Number: 108-83-8
Relevant Use: Solvent in industrial applications, coatings, and adhesives
Manufacturer Contact: Emergency phone numbers and address details from supplier labels or purchasing documents should be reviewed because timely contact reduces confusion during emergencies.
Classification: Flammable liquid, irritant to skin and eyes, potentially harmful by inhalation
Label Elements: Signal word: Warning. Hazard statements include flammable liquid and vapor, causes skin and eye irritation, may cause drowsiness or dizziness
Precautionary Statements: Avoid breathing vapors or mist; keep away from open flame and sparks; wash hands thoroughly after handling; wear impervious gloves, goggles, and protective clothing; take off contaminated clothing
Health Effects: Eyes and skin may feel burning or stinging. Inhalation can cause headache and dizziness. Ingestion upsets the digestive tract and brings risk of central nervous system effects.
Chemical Identity: Diisobutyl Ketone
Purity: Around 99% pure
Impurities: Minor impurities under 1%, which could include other ketones
Molecular Weight: 142.24 g/mol
EC Number: 203-620-1
Inhalation: Move exposed person to fresh air. Keep at rest in a position comfortable for breathing. Give oxygen if breathing grows heavy or irregular.
Skin Contact: Gently wash skin with soap and plenty of water for at least 15 minutes. Remove any contaminated clothing right away.
Eye Contact: Flush eyes with running water for at least 15 minutes, occasionally lifting eyelids. Seek medical help.
Ingestion: If swallowed, rinse mouth and drink water. Do not induce vomiting. Watch for symptoms—get medical attention quickly.
Most Important Symptoms: Respiratory distress, dizziness, skin redness, sore throat, or stomach upset signal a problem worth contacting poison control over.
Suitable Extinguishing Media: Use alcohol-resistant foam, dry chemical powder, or carbon dioxide for fires. Water may spread the fire.
Hazardous Combustion Products: Smoke, carbon monoxide, carbon dioxide from incomplete combustion
Protective Gear: Firefighters should wear self-contained breathing apparatus and protective fighting gear—chemical-resistant suits and gloves.
Fire Hazards: Vapors form explosive mixtures with air. Containers can rupture under fire, throwing flammable materials or hazardous fumes.
Personal Precautions: Evacuate nonessential people. Ventilate the area. Wear gloves, goggles, and breathing protection.
Spill Response: Use nonsparking tools to stop the leak safely. Absorb spill with sand, earth, or inert absorbent. Scoop up and put in closed waste containers.
Environmental Precautions: Prevent chemical runoff into drains, water courses, or onto soil.
Clean-Up Procedures: Finish with soapy water and clear air circulation. Waste must not be allowed to gather in work areas.
Safe Handling: Keep away from ignition sources, sparks, and hot surfaces. Do not inhale porting vapors or mist. Avoid contact with skin and eyes.
Storage Conditions: Store in tightly closed, properly labeled bottles in a cool, ventilated location. Keep out of direct sunlight and far from incompatible substances like oxidizing agents.
Special Requirements: Ground all equipment during transfer to prevent static discharge. Use explosion-proof ventilation.
Exposure Limits: OSHA and ACGIH short-term exposure limit: 25 ppm (135 mg/m3)
Engineering Controls: Strong ventilation in work area reduces vapor concentrations. Local exhaust hoods recommended.
Personal Protective Equipment: Splash-resistant goggles; solvent-resistant gloves; long sleeves and pants. Respirator with organic vapor cartridge for high exposure risk.
Hygiene Measures: Wash after handling; do not eat, drink, or smoke around chemicals.
Appearance: Clear, colorless liquid
Odor: Faint sweet or minty smell
Boiling Point: 165–170°C (329–338°F)
Melting Point: -60°C (-76°F)
Vapor Pressure: About 2 mmHg at 20°C
Density: Roughly 0.8 g/cm³ at 20°C
Solubility: Slightly soluble in water. Mixes well with alcohols and ethers.
Flash Point: 54°C (129°F)
Autoignition Temperature: 376°C (709°F)
Explosion Limits: Lower – 0.8%; Upper – 6%
Chemical Stability: Stays stable at normal temperatures and pressures.
Reactivity: Strong oxidizers trigger violent reactions.
Conditions to Avoid: High heat, sparks, open flames. Contains risk of vapor buildup in poorly ventilated spots.
Incompatible Materials: Chlorine, strong acids, oxidizing substances.
Hazardous Decomposition Products: Burning causes carbon monoxide, carbon dioxide, fumes.
Routes of Exposure: Inhalation, skin and eye contact, swallowing
Acute Effects: Skin and eyes sting on contact. Inhaling vapors can bring headache, dizziness, drowsiness.
Chronic Exposure: Prolonged or repeated skin contact causes dryness or cracking.
LD50 (Oral, Rat): About 5200 mg/kg
LD50 (Dermal, Rabbit): Above 5000 mg/kg
Carcinogenicity: No data show this causes cancer. Not listed by NTP, IARC, or OSHA.
Sensitization: Not likely, but rare cases of allergic reactions have been reported.
Ecotoxicity: Low acute toxicity to aquatic organisms, but spills can damage habitats with prolonged exposure.
Persistence and Degradability: The substance breaks down in air and soil over time, though strong sunlight and high temperatures speed the process.
Bioaccumulation: Does not build up significantly in animal tissues.
Mobility in Soil: Spills may seep into groundwater, depending on soil type.
Other Adverse Effects: In large spills, may form oily films that affect oxygen transfer in water.
Disposal Methods: Dispose of through licensed hazardous waste handlers. Incineration preferred under controlled conditions.
Contaminated Packaging: Empty containers must be drained well and sent to licensed reconditioners or waste handlers.
Avoid Release: Do not allow runoff to natural waterways or public sewage.
UN Number: UN1157
Proper Shipping Name: Diisobutyl Ketone
Hazard Class: 3 (Flammable Liquids)
Packing Group: III (minor danger)
Labels: Flammable liquid
Special Transport Notes: Secure containers tight, upright. Guard against impacts or leaks in transit.
TSCA Inventory: Listed in the United States Toxic Substances Control Act inventory
OSHA Classification: Regulated as a hazardous chemical
EPA SARA Title III: Not subject to Section 313 reporting, but included under Section 311/312 as immediate and fire hazard
WHMIS Status: Listed as a Class B2 (flammable liquid) and Class D2B (toxic material causing other effects) in Canada
Labeling Requirements: Flammable—keep clear of ignition sources. Hazard and precaution statements must be on primary and secondary packaging.
