NIOSH Pocket Guide to Chemical Hazards

Methyl (n-amyl) ketone CAS 110-43-0
CH3CO[CH2]4CH3 RTECS MJ5075000
Synonyms & Trade Names
Amyl methyl ketone, n-Amyl methyl ketone, 2-Heptanone
DOT ID & Guide
1110 127
Exposure
Limits
NIOSH REL: TWA 100 ppm (465 mg/m3)
OSHA PEL: TWA 100 ppm (465 mg/m3)
IDLH 800 ppm Conversion 1 ppm = 4.67 mg/m3
Physical Description
Colorless to white liquid with a banana-like, fruity odor.
MW: 114.2
BP: 305°F
FRZ: -32°F
Sol: 0.4%
VP: 3 mmHg
IP: 9.33 eV

Sp.Gr: 0.81
Fl.P: 102°F
UEL(250°F): 7.9%
LEL(151°F): 1.1%

Class II Combustible Liquid: Fl.P. at or above 100F and below 140F.
Incompatibilities & Reactivities
Strong acids, alkalis & oxidizers [Note: Will attack some forms of plastic.]
Measurement Methods
NIOSH 1301
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation

First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Fresh air
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 800 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
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, mucous membrane; headache; narcosis, coma; dermatitis
Target Organs Eyes, skin, respiratory system, central nervous system, peripheral nervous system
See also: INTRODUCTION