Secondary isoamyl alcohol
Clear, colorless liquid, with a characteristic, slightly pungent and penetrating odor.
The secondary pentanols or amyl alcohols, such as 3-methyl-2-butanol, are used in the production of catalyst systems for dimerization and polymerization, and for the synthesis of methanol from carbon dioxide and hydrogen. They may also be used in organic synthesis; as solvents, chemical intermediates, lubricant additives, cleaning agents, defrosting agents, various herbicides and fragrances. 3-Methyl-2-butanol is also used as a stabilizing agent for tetrachloroethane.
Registry Numbers and Inventories.
R 10 20
Swiss Giftliste 1
Japan ENCS (MITI)
Boiling point, °C
Vapor pressure, mmHg
517 (100 C)
Approximately 8000 ppm (0.8%) at 20 C; 12000 ppm (1.2%) at 25 C (calculated)
0.82 g/cm3 (20 C)
Solubility in water
3.51 cp (25 C)
23 g/s2 (25 C)
1.4091 (20 C)
Heat of vaporization
Hazards and Protection.
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Take precautionary measures against static discharges.
Eyes: Wear chemical goggles. Skin: Wear appropriate protective 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. Provide ventilation.
Strong oxidizing agents - reducing agents.
Carbon monoxide, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Extinguishing media: Use water spray to cool fire-exposed containers. Use foam, dry chemical, or carbon dioxide.
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
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.
NIOSH REL: TWA 100 ppm (360 mg/m3) ST 125 ppm (450 mg/m3) OSHA PEL: TWA 100 ppm (360 mg/m3) IDLH 500 ppm
Prolonged or repeated exposure may cause nausea, dizziness, and headache.
May be harmful if swallowed.
Harmful if inhaled.
May cause skin irritation.
May cause eye irritation.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.