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o-Chlorostyrene																				Related Pages
Synonyms & Trade Names
			1-Chloro-2-ethenylbenzene, 2-Chlorostyrene, ortho-Chlorostyrene
CAS No.
			2039-87-4
	RTECS No.
			WL4160000
	DOT ID & Guide

FormulaClC6H4CH=CH2
	Conversion
			1 ppm = 5.67 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 50 ppm (285 mg/m3) ST 75 ppm (428 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid.													
										
Molecular Weight138.6	
	Boiling Point372°F
	Freezing Point-82°F
	SolubilityInsoluble
	Vapor Pressure(77°F): 0.96 mmHg
	Ionization Potential?											
Specific Gravity1.10	
	Flash Point138°F
	Upper Explosive Limit?
	Lower Explosive Limit?
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities
			None reported
Exposure Routes
			inhalation, ingestion, skin and/or eye contact
Symptoms
			In Animals: irritation eyes, skin; hematuria (blood in the urine), proteinuria, acidosis; enlarged liver, jaundice
Target Organs
			Eyes, skin, liver, kidneys, central nervous system, peripheral nervous 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: 1388

			
							

			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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CAS Numbers
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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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