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2-Pentanone

Synonyms & Trade Names
Ethyl acetone, Methyl propyl ketone, MPK
CAS No.
107-87-9
RTECS No.
SA7875000
DOT ID & Guide
1249 127
Formula
CH3COCH2CH2CH3
Conversion
1 ppm = 3.52 mg/m3
IDLH
1500 ppm
See: 107879
Exposure Limits
NIOSH REL
: TWA 150 ppm (530 mg/m3)
OSHA PEL
†: TWA 200 ppm (700 mg/m3)
Measurement Methods

NIOSH 1300 , 2555
See: NMAM or OSHA Methods
Physical Description
Colorless to water-white liquid with a characteristic acetone-like odor.
MW:
86.1
BP:
215°F
FRZ:
-108°F
Sol:
6%
VP:
27 mmHg
IP:
9.39 eV
Sp.Gr:
0.81
Fl.P:
45°F
UEL:
8.2%
LEL:
1.5%
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Oxidizers, bromine trifluoride
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane; headache; dermatitis; narcosis, coma
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water flush
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

NIOSH

Up to 1500 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

See also: INTRODUCTION   See ICSC CARD: 0816   See MEDICAL TESTS: 0146
 

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