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Chlorodifluoromethane																				Related Pages
Synonyms & Trade Names
			Difluorochloromethane, Fluorocarbon-22, Freon® 22, Genetron® 22, Monochlorodifluoromethane, Refrigerant 22
CAS No.
			75-45-6
	RTECS No.
			PA6390000
	DOT ID & Guide
			1018 126

FormulaCHClF2
	Conversion
			1 ppm = 3.54 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 1000 ppm (3500 mg/m3) ST 1250 ppm (4375 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 1018
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless gas with a faint, sweetish odor.
					[Note: Shipped as a liquefied compressed gas.]													
										
Molecular Weight86.5	
	Boiling Point-41°F
	Freezing Point-231°F
	Solubility(77°F): 0.3%
	Vapor Pressure9.4 atm
	Ionization Potential12.45 eV											
Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
	Relative Gas Density3.11
Nonflammable Gas
Incompatibilities & Reactivities
			Alkalis, alkaline earth metals (e.g., powdered aluminum, sodium, potassium, zinc)
Exposure Routes
			inhalation, skin and/or eye contact (liquid)
Symptoms
			irritation respiratory system; confusion, drowsiness, ringing in ears; heart palpitations, cardiac arrhythmias; asphyxia; liver, kidney, spleen injury; liquid: frostbite
Target Organs
			respiratory system, cardiovascular system, central nervous system, liver, kidneys, spleen
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Frostbite
							**Eyes:**Frostbite
							**Wash skin:**No recommendation
							**Remove:**No recommendation
							**Change:**No recommendation
							**Provide:**Frostbite wash
	First Aid
			(See procedures)**Eye:**Frostbite
							**Skin:**Frostbite
							**Breathing:**Respiratory support
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0049

			
							

			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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