Cyclohexanone
Synonyms & Trade Names
Anone, Cyclohexyl ketone, Pimelic ketoneExposure Limits
NIOSH REL
TWA 25 ppm (100 mg/m3) [skin]OSHA PEL
TWA 50 ppm (200 mg/m3) See Appendix GPhysical Description
Water-white to pale-yellow liquid with a peppermint- or acetone-like odor.Molecular Weight
98.2Boiling Point
312°FFreezing Point
-49°FSolubility
15%Vapor Pressure
5 mmHgIonization Potential
9.14 eVSpecific Gravity
0.95Flash Point
111°FUpper Exposive Limit
9.4%Lower Explosive Limit
(212°F): 1.1%Incompatibilities & Reactivities
Oxidizers, nitric acidExposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contactSymptoms
irritation eyes, skin, mucous membrane; headache; narcosis, coma; dermatitis; In Animals: liver, kidney damageTarget Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneysPersonal Protection/Sanitation
(See protection codes)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:Water flush promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
NIOSH
Up to 625 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)£
Up to 700 ppm:
(APF = 50) Any chemical cartridge respirator with a full facepiece and 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 = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)£
(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
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division