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Quinone																				Related Pages
Synonyms & Trade Names
			1,4-Benzoquinone, p-Benzoquinone, 1,4-Cyclohexadiene dioxide, p-Quinone
CAS No.
			106-51-4
	RTECS No.
			DK2625000
	DOT ID & Guide
			2587 153

FormulaOC6H4O
	Conversion
			1 ppm = 4.42 mg/m3
	IDLH
			100 mg/m3See: 106514

Exposure Limits
			NIOSH RELTWA 0.4 mg/m3 (0.1 ppm)
					OSHA PEL TWA 0.4 mg/m3 (0.1 ppm)
	Measurement Methods
			**NIOSH** S181 (II-4)
					
					See: NMAM or OSHA Methods
										
Physical Description
			Pale-yellow solid with an acrid, chlorine-like odor.													
										
Molecular Weight108.1	
	Boiling PointSublimes
	Melting Point240°F
	SolubilitySlight
	Vapor Pressure(77°F): 0.1 mmHg
	Ionization Potential9.68 eV											
Specific Gravity1.32	
	Flash Point100-200°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid
Incompatibilities & Reactivities
			Strong oxidizers
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			Eye irritation, conjunctivitis; keratitis (inflammation of the cornea); skin irritation
Target Organs
			Eyes, skin
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**When contaminated
							**Remove:**When wet or contaminated
							**Change:**Daily
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH/OSHA****Up to 10 mg/m3**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£**Up to 20 mg/m3**: (APF = 50) Any self-contained breathing apparatus with a full facepiece(APF = 50) Any supplied-air respirator with a full facepiece**Up to 100 mg/m3**: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode**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 having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.Any appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0779
					  MEDICAL TESTS: 0201

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
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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
First Aid Procedures Follow NIOSH Facebook
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