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tert-Butyl alcohol |
CAS 75-65-0 | ||
(CH3)3COH |
RTECS EO1925000 | ||
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Synonyms & Trade Names 2-Methyl-2-propanol, Trimethyl carbinol |
DOT ID & Guide 1120 129 |
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Exposure
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NIOSH REL: TWA 100 ppm (300 mg/m3) ST 150 ppm (450 mg/m3) | ||
| OSHA PEL†: TWA 100 ppm (300 mg/m3) | |||
| IDLH 1600 ppm See: 75650 | Conversion 1 ppm = 3.03 mg/m3 | ||
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Physical Description Colorless solid or liquid (above 77°F) with a camphor-like odor. [Note: Often used in aqueous solutions.] |
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MW: 74.1 |
BP: 180°F |
FRZ: 78°F |
Sol: Miscible |
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VP(77°F): 42 mmHg |
IP: 9.70 eV |
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Sp.Gr: 0.79 (Solid) |
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Fl.P: 52°F |
UEL: 8.0% |
LEL: 2.4% |
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| Combustible Solid Class IB Flammable Liquid | |||
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Incompatibilities & Reactivities Strong mineral acids, strong hydrochloric acid, oxidizers |
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Measurement Methods NIOSH 1450; OSHA 7 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) 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/OSHA Up to 1600 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; drowsiness, narcosis | |
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Target Organs
Eyes, skin, respiratory system, central nervous system |
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| See also: INTRODUCTION See ICSC CARD: 0114 |