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Chloroform																				Related Pages
Synonyms & Trade Names
			Methane trichloride, Trichloromethane
CAS No.
			67-66-3
	RTECS No.
			FS9100000
	DOT ID & Guide
			1888 151

FormulaCHCl3
	Conversion
			1 ppm = 4.88 mg/m3
	IDLH
			Ca [500 ppm]See: 67663

Exposure Limits
			NIOSH RELCa ST 2 ppm (9.78 mg/m3) [60-minute] See Appendix A
					OSHA PEL C 50 ppm (240 mg/m3) See Appendix G
	Measurement Methods
			**NIOSH** 1003
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless liquid with a pleasant odor.													
										
Molecular Weight119.4	
	Boiling Point143°F
	Freezing Point-82°F
	Solubility(77°F): 0.5%
	Vapor Pressure160 mmHg
	Ionization Potential11.42 eV											
Specific Gravity1.48	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
Noncombustible Liquid
Incompatibilities & Reactivities
			Strong caustics; chemically-active metals such as aluminum or magnesium powder, sodium & potassium; strong oxidizers
					[Note: When heated to decomposition, forms phosgene gas.]
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin; dizziness, mental dullness, nausea, confusion; headache, lassitude (weakness, exhaustion); anesthesia; enlarged liver; [potential occupational carcinogen]
Target Organs
			Liver, kidneys, heart, eyes, skin, central nervous system
Cancer Site[in animals: liver & kidney cancer]										
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
							**Provide:**Eyewash, Quick drench
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash promptly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**NIOSH****At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:** (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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0027
					  MEDICAL TESTS: 0047

			
							

			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
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
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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