o-Methylcyclohexanone
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CAS
583-60-8
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CH3C6H9O
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RTECS
GW1750000
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Synonyms & Trade Names
2-Methylcyclohexanone
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DOT ID & Guide
2297 / 128
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Exposure
Limits
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NIOSH REL: TWA 50 ppm (230 mg/m3) ST 75 ppm (345 mg/m3) [skin]
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OSHA PEL†: TWA 100 ppm (460 mg/m3) [skin]
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IDLH
600 ppm
See: 583608
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Conversion
1 ppm = 4.59 mg/m3
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Physical Description
Colorless liquid with a weak, peppermint-like odor.
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MW: 112.2
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BP: 325°F
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FRZ: 7°F
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Sol: Insoluble
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VP: 1 mmHg
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IP: ?
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Sp.Gr: 0.93
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Fl.P: 118°F
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UEL: ?
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LEL: ?
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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 2521
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: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
Up to 500 ppm:
(APF = 10) Any supplied-air respirator*
Up to 600 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
In animals: irritation eyes, mucous membrane; narcosis; dermatitis
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Target Organs
Skin, respiratory system, liver, kidneys, central nervous system
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