tert-Butyl alcohol
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CAS
75-65-0
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(CH3)3COH
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RTECS
EO1925000
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Synonyms & Trade Names
2-Methyl-2-propanol, Trimethyl carbinol
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DOT ID & Guide
1120 / 129
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Exposure
Limits
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NIOSH REL: TWA 100 ppm (300 mg/m3) ST 150 ppm (450 mg/m3)
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OSHA PEL†: TWA 100 ppm (300 mg/m3)
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IDLH
1600 ppm
See: 75650
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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
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BP: 180°F
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FRZ: 78°F
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Sol: Miscible
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VP(77°F): 42 mmHg
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IP: 9.70 eV
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Sp.Gr: 0.79 (Solid)
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Fl.P: 52°F
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UEL: 8.0%
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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 |
Personal Protection & Sanitation (See protection)
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
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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
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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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 |
