Methyl isobutyl carbinol
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CAS
108-11-2
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(CH3)2CHCH2CH(OH)CH3
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RTECS
SA7350000
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Synonyms & Trade Names
Isobutylmethylcarbinol, Methyl amyl alcohol, 4-Methyl-2-pentanol, MIBC
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DOT ID & Guide
2053 / 129
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Exposure
Limits
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NIOSH REL: TWA 25 ppm (100 mg/m3) ST 40 ppm (165 mg/m3) [skin]
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OSHA PEL†: TWA 25 ppm (100 mg/m3) [skin]
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IDLH
400 ppm
See: 108112
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Conversion
1 ppm = 4.18 mg/m3
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Physical Description
Colorless liquid with a mild odor.
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MW: 102.2
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BP: 271°F
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FRZ: -130°F
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Sol: 2%
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VP: 3 mmHg
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IP: ?
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Sp.Gr: 0.81
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Fl.P: 106°F
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UEL: 5.5%
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LEL: 1.0%
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Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
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Incompatibilities & Reactivities
Strong oxidizers
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Measurement Methods
NIOSH 1402, 1405; 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 or contaminated
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 250 ppm:
(APF = 10) Any supplied-air respirator*
Up to 400 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(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, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin; headache, drowsiness; dermatitis; in animals: narcosis
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Target Organs
Eyes, skin, central nervous system
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See also: INTRODUCTION
See ICSC CARD: 0665 |
