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1,2,4-Trichlorobenzene																				Related Pages
Synonyms & Trade Names
			unsym-Trichlorobenzene, 1,2,4-Trichlorobenzol
CAS No.
			120-82-1
	RTECS No.
			DC2100000
	DOT ID & Guide
			2321 153(liquid)

FormulaC6H3Cl3
	Conversion
			1 ppm = 7.42 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELC 5 ppm (40 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 5517
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid or crystalline solid (below 63°F) with an aromatic odor.													
										
Molecular Weight181.4	
	Boiling Point416°F
	Freezing Point63°F
	Solubility0.003%
	Vapor Pressure1 mmHg
	Ionization Potential?											
Specific Gravity1.45	
	Flash Point222°F
	Upper Explosive Limit(302°F): 6.6%
	Lower Explosive Limit(302°F): 2.5%
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.Combustible Solid
Incompatibilities & Reactivities
			Acids, acid fumes, oxidizers, steam
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, mucous membrane; In Animals: liver, kidney damage; possible teratogenic effects
Target Organs
			Eyes, skin, respiratory system, liver, reproductive 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
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 1049

			
							

			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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CAS Numbers
RTECS Numbers
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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