Diisobutyl ketone
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CAS
108-83-8
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[(CH3)2CHCH2]2CO
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RTECS
MJ5775000
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Synonyms & Trade Names
DIBK; sym-Diisopropyl acetone; 2,6-Dimethyl-4-heptanone; Isovalerone; Valerone
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DOT ID & Guide
1157 / 128
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Exposure
Limits
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NIOSH REL: TWA 25 ppm (150 mg/m3)
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OSHA PEL†: TWA 50 ppm (290 mg/m3)
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IDLH
500 ppm
See: 108838
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Conversion
1 ppm = 5.82 mg/m3
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Physical Description
Colorless liquid with a mild, sweet odor.
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MW: 142.3
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BP: 334°F
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FRZ: -43°F
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Sol: 0.05%
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VP: 2 mmHg
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IP: 9.04 eV
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Sp.Gr: 0.81
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Fl.P: 120°F
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UEL(200°F): 7.1%
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LEL(200°F): 0.8%
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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 1300, 2555; OSHA 7
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: No recommendation
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
Up to 500 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; headache, dizziness; dermatitis; 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: 0713 See MEDICAL TESTS: 0079
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