5-Methyl-3-heptanone
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CAS
541-85-5
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C2H5COCH2CH(CH3)CH2CH3
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RTECS
MJ7350000
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Synonyms & Trade Names
Amyl ethyl ketone, Ethyl amyl ketone, 3-Methyl-5-heptanone
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DOT ID & Guide
2271 / 127
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Exposure
Limits
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NIOSH REL: TWA 25 ppm (130 mg/m3)
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OSHA PEL: TWA 25 ppm (130 mg/m3)
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IDLH
100 ppm
See: 541855
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Conversion
1 ppm = 5.24 mg/m3
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Physical Description
Colorless liquid with a pungent odor.
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MW: 128.2
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BP: 315°F
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FRZ: -70°F
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Sol: Insoluble
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VP: 2 mmHg
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IP: ?
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Sp.Gr: 0.82
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Fl.P: 138°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 1301, 2553
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
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH/OSHA
Up to 100 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*
(APF = 25) Any powered, air-purifying 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 = 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
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Target Organs
Eyes, skin, respiratory system, central nervous system
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See also: INTRODUCTION See ICSC CARD: 1391
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