sec-Butyl alcohol |
Synonyms & Trade Names 2-Butanol, Butylene hydrate, 2-Hydroxybutane, Methyl ethyl carbinol |
CAS No. 78-92-2 |
RTECS No. EO1750000 |
DOT ID & Guide 1120 129 |
FormulaCH3CH(OH)CH2CH3 |
Conversion 1 ppm = 3.03 mg/m3 |
IDLH 2000 ppm
See: 78922 |
Exposure Limits NIOSH REL: TWA 100 ppm (305 mg/m3) ST 150 ppm (455 mg/m3)
OSHA PEL†: TWA 150 ppm (450 mg/m3) |
Measurement Methods
NIOSH 1401 , 1405;
OSHA 7
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a strong, pleasant odor. |
MW: 74.1 |
BP: 211°F |
FRZ: -175°F |
Sol: 16% |
VP: 12 mmHg |
IP: 10.10 eV |
Sp.Gr: 0.81 |
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. |
Incompatibilities & Reactivities Strong oxidizers, organic peroxides, perchloric & permonosulfuric acids |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; narcosis |
Target Organs Eyes, skin, respiratory system, central nervous system |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0112
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