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Chemical name: 3-Pentanone Common names: Diethyl ketone CAS number: 96-22-0 Formula: C5H10O Appearance: Clear, colorless liquid with a sweet, fruity odor Uses: Solvent in paints, coatings, adhesive formulas; intermediate in organic synthesis
Main risks: Flammable liquid and vapor, eye and skin irritant, may cause drowsiness/dizziness through inhalation Health hazards: Direct contact stings eyes, dries or cracks skin. Breathing in high amounts can lead to headaches, nausea, or even loss of coordination Special notes: Vapors can build up indoors, reach ignition sources, and start fires, especially in poorly ventilated spaces
Main ingredient: 3-Pentanone (above 99 percent purity in most laboratory settings) Other chemicals: Trace quantities of acetone, propanol, ethanol from synthesis or degradation
Eye contact: Rinse with water for several minutes, remove contacts, keep flushing if irritation sticks around Skin contact: Remove contaminated clothing, wash skin with soap and water Inhalation: Move to fresh air, breathe calmly, rest in a comfortable position Ingestion: Rinse mouth, avoid inducing vomiting, seek immediate medical help
Suitable extinguishing methods: Use dry chemical, CO2, alcohol-resistant foam Key hazards in fire: Burns with a luminous flame, vapors may travel along surfaces and flash back Recommended gear: Self-contained breathing apparatus, full protective clothing Byproducts in fire: Carbon monoxide and carbon dioxide, irritating fumes
Personal precautions: Keep away from sparks, open flames, hot surfaces Spill clean-up: Absorb spills with sand, earth or non-combustible material, scoop up and dispose according to local rules Ventilation: Air out area, use explosion-proof equipment where needed Environmental steps: Stop entry into drains, sewers, stormwater or soil
Handling: Avoid breathing vapors, keep away from heat, no smoking, ground all containers Storage: Tight-sealed containers, cool dry place, separate from oxidizers and acids, proper labeling Work practices: Wear gloves, keep workspaces uncluttered, make sure eyewash stations are nearby
Engineering controls: Good room air flow, use fume hood for big jobs Personal protection: Chemical splash goggles, resistant gloves (nitrile, neoprene), appropriate clothing Respiratory protection: Where vapor builds up, use an approved respirator Occupational limits: ACGIH TLV 50 ppm (8 hour TWA)
Melting point: -39°C Boiling point: 102°C Density: 0.810 g/cm³ (20°C) Vapor pressure: 33 mmHg (20°C) Solubility: Slightly soluble in water; mixes well with many organic solvents Odor threshold: Distinct sweet, fruit-like smell at low concentrations Flash point: 14°C (closed cup) Evaporation rate: Faster than water
Chemical stability: Keeps well if sealed and stored cool Conditions to avoid: Strong heat, open flames, sources of ignition Incompatible substances: Strong oxidizers (peroxides, nitric acid), strong acids Hazardous breakdown: Burns to form toxic gases like carbon monoxide and carbon dioxide
Acute effects: Eye and skin irritation on contact, fumes may bring dizziness or a narcotic effect if inhaled too long Chronic exposure: Long-term exposure raises chances of headaches, tiredness, possible liver effects Sensitization: Not proven to cause allergic reaction in most people Routes of entry: Absorbed mainly by skin, lungs, less so by mouth
Aquatic life: Can be toxic to fish in high doses; dissolves slowly in water Soil impact: Moderate mobility, leaches to groundwater if spilled; microbes can eventually break it down Atmospheric fate: Vapors rise, react quickly with air forming less harmful products
Waste treatment: Dispose through licensed chemical waste facility Container handling: Rinse, puncture, and discard according to hazardous waste protocols Avoid: Flushing to sewer, open dumping; aim for incineration where permitted
Classification: Flammable liquid, must be labeled as dangerous goods in transport Packing group: II Precautions: Check all caps or plugs, keep upright, shield from heat and sparks during any transit
Labeling: Includes flammable pictograms, hazard statements as per globally harmonized system Workplace rules: Monitored in Europe, Japan, United States for workplace airborne concentrations Disposal and storage: Subject to local and national chemical safety, storage, and waste requirements
