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p-Terphenyl																				Related Pages
Synonyms & Trade Names
			1,4-Diphenylbenzene, p-Diphenylbenzene, 4-Phenylbiphenyl, 1,4-Terphenyl, para-Terphenyl, p-Triphenyl
CAS No.
			92-94-4
	RTECS No.
			WZ6475000
	DOT ID & Guide

FormulaC6H5C6H4C6H5
	Conversion
			1 ppm = 9.57 mg/m3
	IDLH
			500 mg/m3See: IDLH INDEX

Exposure Limits
			NIOSH RELC 5 mg/m3 (0.5 ppm)
					OSHA PEL C 9 mg/m3 (1 ppm) See Appendix G
	Measurement Methods
			**NIOSH** 5021
					
					See: NMAM or OSHA Methods
										
Physical Description
			White or light-yellow solid.													
										
Molecular Weight230.3	
	Boiling Point761°F
	Melting Point415°F
	SolubilityInsoluble
	Vapor PressureVery low
	Ionization Potential7.78											
Specific Gravity1.23	
	Flash Point405°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid
Incompatibilities & Reactivities
			None reported
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, mucous membrane; thermal skin burns; headache; sore throat; In Animals: liver, kidney damage
Target Organs
			Eyes, skin, respiratory system, liver, kidneys
										
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:**Water flush immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****Up to 25 mg/m3**: (APF = 5) Any quarter-mask respirator. Click here for information on selection of N, R, or P filters.£**Up to 50 mg/m3**: (APF = 10) Any particulate respirator equipped with an N95, R95, or P95 filter (including N95, R95, and P95 filtering facepieces) except quarter-mask respirators. The following filters may also be used: N99, R99, P99, N100, R100, P100. Click here for information on selection of N, R, or P filters.£(APF = 10) Any supplied-air respirator£**Up to 125 mg/m3**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£(APF = 25) Any powered, air-purifying respirator with a high-efficiency particulate filter.£**Up to 250 mg/m3**:(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.(APF = 50) Any self-contained breathing apparatus with a full facepiece(APF = 50) Any supplied-air respirator with a full facepiece**Up to 500 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 with 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

			
							

			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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Chemical Names, Synonyms and Trade Names
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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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