Hexone
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CAS
108-10-1
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CH3COCH2CH(CH3)2
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RTECS
SA9275000
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Synonyms & Trade Names
Isobutyl methyl ketone, Methyl isobutyl ketone, 4-Methyl 2-pentanone, MIBK
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DOT ID & Guide
1245 / 127
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Exposure
Limits
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NIOSH REL: TWA 50 ppm (205 mg/m3) ST 75 ppm (300 mg/m3)
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OSHA PEL†: TWA 100 ppm (410 mg/m3)
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IDLH
500 ppm
See: 108101
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Conversion
1 ppm = 4.10 mg/m3
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Physical Description
Colorless liquid with a pleasant odor.
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MW: 100.2
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BP: 242°F
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FRZ: -120°F
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Sol: 2%
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VP: 16 mmHg
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IP: 9.30 eV
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Sp.Gr: 0.80
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Fl.P: 64°F
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UEL(200°F): 8.0%
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LEL(200°F): 1.2%
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Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
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Incompatibilities & Reactivities
Strong oxidizers, potassium tert-butoxide
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Measurement Methods
NIOSH 1300, 2555; OSHA 1004
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
Up to 500 ppm:
(APF = 10) Any chemical cartridge respirator with 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 powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)*
(APF = 10) Any supplied-air respirator*
(APF = 50) Any self-contained breathing apparatus 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, mucous membrane; headache, narcosis, coma; dermatitis; in animals: liver, kidney damage
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Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys
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See also: INTRODUCTION
See ICSC CARD: 0511 See MEDICAL TESTS: 0134
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