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| Isobutyl alcohol | CAS 78-83-1 | ||
| (CH3)2CHCH2OH | RTECS NP9625000 | ||
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Synonyms & Trade Names IBA, Isobutanol, Isopropylcarbinol, 2-Methyl-1-propanol |
DOT ID & Guide 1212 129 |
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Exposure Limits |
NIOSH REL: TWA 50 ppm (150 mg/m3) | ||
| OSHA PEL�: TWA 100 ppm (300 mg/m3) | |||
| IDLH 1600 ppm | Conversion 1 ppm = 3.03 mg/m3 | ||
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Physical Description Colorless, oily liquid with a sweet, musty odor. |
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MW: 74.1 |
BP: 227°F |
FRZ: -162°F |
Sol: 10% |
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VP: 9 mmHg |
IP: 10.12 eV |
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Sp.Gr: 0.80 |
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Fl.P: 82°F |
UEL(202°F): 10.6% |
LEL(123°F): 1.7% |
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| Class IC Flammable Liquid: Fl.P. at or above 73�F and below 100�F. | |||
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Incompatibilities & Reactivities Strong oxidizers |
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Measurement Methods NIOSH 1401; OSHA 7 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH Up to 500 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*/(APF = 10) Any supplied-air respirator* Up to 1250 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)* Up to 1600 ppm: (APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)*/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, throat; headache, drowsiness; skin cracking; in animals: narcosis | |
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Target Organs
Eyes, skin, respiratory system, central nervous system |
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| See also: INTRODUCTION |