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o-Methylcyclohexanone																				Related Pages
Synonyms & Trade Names
			2-Methylcyclohexanone
CAS No.
			583-60-8
	RTECS No.
			GW1750000
	DOT ID & Guide
			2297 128

FormulaCH3C6H9O
	Conversion
			1 ppm = 4.59 mg/m3
	IDLH
			600 ppmSee: 583608

Exposure Limits
			NIOSH RELTWA 50 ppm (230 mg/m3) ST 75 ppm (345 mg/m3) [skin]
					OSHA PEL TWA 100 ppm (460 mg/m3) [skin] See Appendix G
	Measurement Methods
			**NIOSH** 2521
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid with a weak, peppermint-like odor.													
										
Molecular Weight112.2	
	Boiling Point325°F
	Freezing Point7°F
	SolubilityInsoluble
	Vapor Pressure1 mmHg
	Ionization Potential?											
Specific Gravity0.93	
	Flash Point118°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities
			Strong oxidizers
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			In Animals: irritation eyes, mucous membrane; narcosis; dermatitis
Target Organs
			Skin, respiratory system, liver, kidneys, central nervous system
										
Personal 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:**Soap wash promptly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****Up to 500 ppm**: (APF = 10) Any supplied-air respirator***Up to 600 ppm**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*(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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
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