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p-Nitrotoluene																				Related Pages
Synonyms & Trade Names
			4-Methylnitrobenzene, p-Methylnitrobenzene, 4-Nitrotoluene, para-Nitrotoluene
CAS No.
			99-99-0
	RTECS No.
			XT3325000
	DOT ID & Guide
			1664 152

FormulaNO2C6H4CH3
	Conversion
			1 ppm = 5.61 mg/m3
	IDLH
			200 ppmSee: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 2 ppm (11 mg/m3) [skin]
					OSHA PEL TWA 5 ppm (30 mg/m3) [skin] See Appendix G
	Measurement Methods
			**NIOSH** 2005
					
					See: NMAM or OSHA Methods
										
Physical Description
			Crystalline solid with a weak, aromatic odor.													
										
Molecular Weight137.1	
	Boiling Point460°F
	Melting Point126°F
	Solubility0.04%
	Vapor Pressure0.1 mmHg
	Ionization Potential9.50 eV											
Specific Gravity1.12	
	Flash Point223°F
	Upper Explosive Limit?
	Lower Explosive Limit1.6%
Combustible Solid
Incompatibilities & Reactivities
			Strong oxidizers, sulfuric acid
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			Anoxia, cyanosis; headache, lassitude (weakness, exhaustion), dizziness; ataxia; dyspnea (breathing difficulty); tachycardia; nausea, vomiting
Target Organs
			Blood, central nervous system, cardiovascular system, skin, gastrointestinal tract
										
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
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****Up to 20 ppm**: (APF = 10) Any supplied-air respirator***Up to 50 ppm**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode***Up to 100 ppm**: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is 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**Up to 200 ppm**: (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: 0932

			
							

			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
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