Fuel oil No. 6
- Fuel oil No. 4/5
- Bunker C
- Residual fuel oil
Black liquid. Petroleum-like odor.
Registry Numbers and Inventories.
EC Index Number
Carcinogenic Category 2
Melting point, °C
Boiling point, °C
0.9-1.1 g/cm3 (20 C)
Solubility in water
900-9000 sus @ 38 C
Hazards and Protection.
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Use with adequate ventilation. Avoid prolonged or repeated contact with skin. Avoid contact with eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition.
Stable under normal temperatures and pressures.
Strong oxidizers, strong acids and strong bases.
Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide, hydrocarbons.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.
Moderately flammable. Combustion with heating moderate hazard.
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Fire may produce irritating, corrosive and/or toxic gases.
Possible cancer hazard based on tests with laboratory animals.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
May cause respiratory tract irritation. Material has a low vapor pressure, so exposure to vapor is not likely.
Causes mild skin irritation. Prolonged and/or repeated contact may cause defatting of the skin and dermatitis.
Causes eye irritation.
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.