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| sec-Butyl alcohol | CAS 78-92-2 | ||
| CH3CH(OH)CH2CH3 | RTECS EO1750000 | ||
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Synonyms & Trade Names 2-Butanol, Butylene hydrate, 2-Hydroxybutane, Methyl ethyl carbinol |
DOT ID & Guide 1120 129 |
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Exposure Limits |
NIOSH REL: TWA 100 ppm (305 mg/m3) ST 150 ppm (455 mg/m3) | ||
| OSHA PEL†: TWA 150 ppm (450 mg/m3) | |||
| IDLH 2000 ppm See: 78922 | Conversion 1 ppm = 3.03 mg/m3 | ||
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Physical Description Colorless liquid with a strong, pleasant odor. |
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MW: 74.1 |
BP: 211°F |
FRZ: -175°F |
Sol: 16% |
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VP: 12 mmHg |
IP: 10.10 eV |
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Sp.Gr: 0.81 |
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Fl.P: 75°F |
UEL(212°F): 9.8% |
LEL(212°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, organic peroxides, perchloric & permonosulfuric acids |
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Measurement Methods NIOSH 1450; OSHA 7 See: NMAM or OSHA Methods |
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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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Important additional information about respirator selection Respirator Recommendations NIOSH Up to 1000 ppm: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*/(APF = 10) Any supplied-air respirator* Up to 2000 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)*/(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 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, nose, throat; narcosis | |
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Target Organs
Eyes, skin, respiratory system, central nervous system |
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| See also: INTRODUCTION See ICSC CARD: 0112 |