Isobutyl alcohol
- 2-Methyl-1-propanol
- Isobutanol
- IBA
- Isopropylcarbinol
- 2-Methylpropan-1-ol
Isobutyl alcohol | |
| |
| Formula | (CH3)2CHCH2OH |
| Structure | |
| Description | Clear, colorless liquid with a sweet, musty odor. |
| Uses | Production of esters for fruit flavoring essences. |
| Registry Numbers and Inventories. | |
| CAS | 78-83-1 |
| EC (EINECS/ELINCS) | 201-148-0 |
| EC Index Number | 603-108-00-1 |
| EC Class | Flammable; Irritant; Vapours may cause drowsiness and dizziness |
| EC Risk Phrase | R 10 37/38 41 67 |
| EC Safety Phrase | S 7/9 13 26 37/39 46 |
| RTECS | NP9625000 |
| RTECS class | Tumorigen; Mutagen |
| UN (DOT) | 1212 |
| Merck | 13,5148 |
| Beilstein/Gmelin | 1730878 |
| Beilstein Reference | 4-01-00-01588 |
| RCRA | U140 |
| EPA OPP | 1507 |
| Swiss Giftliste 1 | G-2523 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C4H10O |
| Formula mass | 74.12 |
| Melting point, °C | -108 |
| Boiling point, °C | 107.9 |
| Vapor pressure, mmHg | 10 (25 C) |
| Vapor density (air=1) | 2.55 |
| Saturation Concentration | 11580 ppm at 20 C |
| Evaporization number | 0.8 (buyl acetate = 1) |
| Critical temperature | 274.63 |
| Critical pressure | 0.041 |
| Density | 0.802 g/cm3 (20 C) |
| Solubility in water | 95 g/L |
| Viscosity | 2.85 cp (30 C) |
| Surface tension | 23.0 g/s2 in contact with vapor at 20 C |
| Refractive index | 1.3976 (20 C) |
| Dipole moment | 1.79 D (20 C) |
| Dielectric constant | 17.7 (20 C) |
| Partition coefficient, pKow | 0.76 |
| Heat of vaporization | 50.76 kJ/mol |
| Heat of combustion | -2670 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. |
| WHMIS | B2 D2B |
| Handling | Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with skin and 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. |
| Protection | 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. |
| Respirators | 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. |
| Small spills/leaks | Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. A vapor suppressing foam may be used to reduce vapors. |
| Disposal code | 1 |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Oxidizing agents, inorganic acids, aldehydes, isocyanates. |
| Decomposition | Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 28 | |||
| Autoignition, °C | 415 | |||
| Upper exp. limit, % | 1-.6 | |||
| Lower exp. limit, % | 1.7 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. | |||
| Fire potential | Highly flammable. Can release vapors that form explosive mixtures at temperatures above the flashpoint. | |||
| Hazards | 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. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. | |||
| Combustion products | Toxic gases and vapors (such as carbon monoxide) may be released in a fire involving isobutyl alcohol. | |||
| NFPA | Health | 1 | ||
| Flammability | 3 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | TLV: 50 ppm; 152 mg/m3 (as TWA) (ACGIH 1994-1995). MAK: 100 ppm; 300 mg/m3 (1994). OSHA PEL: TWA 100 ppm (300 mg/m3) NIOSH REL: TWA 50 ppm (150 mg/m3) NIOSH IDLH: 1600 ppm |
| Poison_Class | 4 |
| Exposure effects | Effects may be delayed. Prolonged or repeated skin exposure may cause dermatitis. |
| Ingestion | May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. |
| Inhalation | Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. May cause respiratory tract irritation. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause corneal abnormalities and loss of appetite and weight. May cause burning sensation in the chest. |
| Skin | Skin contact causes irritation, redness, and pain. May be absorbed through the skin; symptoms of absorption may be similar to those from ingestion exposure. |
| Eyes | May cause severe eye irritation. May cause chemical conjunctivitis and corneal damage. Vapors cause irritation, redness, and blurred vision. |
First aid |
|
| Ingestion | 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. |
| Inhalation | Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. DO NOT use mouth-to-mouth respiration. |
| Skin | Immediately 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. Wash clothing before reuse. |
| Eyes | Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Transport. | ||
| UN number | 1212 | |
| Response guide | 129 | |
| Hazard class | 3 | |
| Packing Group | III | |
| USCG CHRIS Code | IAL | |
| USCG Compatatibility Group | 20 Alcohols, Glycols | |
| HS Code | 2905 14 90 | |
| Std. Transport # | 4909124 4909191 4912264 4912870 | |
| IMO Chemical Code | 18 | |
| IMO Pollution Category | III | |