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Trichloronaphthalene																				Related Pages
Synonyms & Trade Names
			Halowax® [Trichloronaphthalene], Nibren wax [Trichloronaphthalene], Seekay wax [Trichloronalhthalene]
CAS No.
			1321-65-9
	RTECS No.
			QK4025000
	DOT ID & Guide

FormulaC10H5Cl3
	Conversion
	IDLH
			See Appendix FSee: 1321659

Exposure Limits
			NIOSH RELTWA 5 mg/m3 [skin]
					OSHA PEL TWA 5 mg/m3 [skin]
	Measurement Methods
			**NIOSH** S128 (II-2)
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to pale-yellow solid with an aromatic odor.													
										
Molecular Weight231.5	
	Boiling Point579-669°F
	Melting Point199°F
	SolubilityInsoluble
	Vapor Pressure<1 mmHg
	Ionization Potential?											
Specific Gravity1.58	
	Flash Point(oc) 392°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid
Incompatibilities & Reactivities
			Strong oxidizers
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			anorexia, nausea; dizziness; jaundice, liver injury
Target Organs
			Liver
										
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
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			(See Appendix F)**NIOSH/OSHA****Up to 50 mg/m3**: (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 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: 0962
					  MEDICAL TESTS: 0237

			
							

			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
First Aid Procedures Follow NIOSH Facebook
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