# NIOSH Pocket Guide to Chemical Hazards
Diethyl ketone | CAS 96-22-0
CH3CH2COCH2CH3 | RTECS SA8050000
Synonyms & Trade Names DEK, Dimethylacetone, Ethyl ketone, Metacetone, 3-Pentanone, Propione | DOT ID & Guide 1156 127
Exposure Limits | NIOSH REL: TWA 200 ppm (705 mg/m3)
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 3.53 mg/m3
Physical Description Colorless liquid with an acetone-like odor.
MW: 86.2 | BP: 215°F | FRZ: -44°F | Sol: 5%
VP(77°F): 35 mmHg | IP: 9.32 eV |  | Sp.Gr: 0.81
Fl.P(oc): 55°F | UEL: 6.4% | LEL: 1.6% |
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities Strong oxidizers, alkalis, mineral acids, (hydrogen peroxide + nitric acid)
Measurement Methods None available
Personal Protection & Sanitation Skin: No recommendation Eyes: Prevent eye contact Wash skin: Daily Remove: When wet (flammable) Change: No recommendation | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, mucous membrane, respiratory system; cough, sneezing
Target Organs Eyes, skin, respiratory system
See also: INTRODUCTION