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Sulfur tetrafluoride																				Related Pages
Synonyms & Trade Names
			Tetrafluorosulfurane
CAS No.
			7783-60-0
	RTECS No.
			WT4800000
	DOT ID & Guide
			2418 125

FormulaSF4
	Conversion
			1 ppm = 4.42 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELC 0.1 ppm (0.4 mg/m3)
					OSHA PEL none See Appendix G
	Measurement Methods
			**OSHA** ID110
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless gas with an odor like sulfur dioxide.
					[Note: Shipped as a liquefied compressed gas.]													
										
Molecular Weight108.1	
	Boiling Point-41°F
	Freezing Point-185°F
	SolubilityReacts
	Vapor Pressure(70°F): 10.5 atm
	Ionization Potential12.63 eV											
Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
	Relative Gas Density3.78
Nonflammable Gas
Incompatibilities & Reactivities
			Moisture, concentrated sulfuric acid, dioxygen difluoride
					[Note: Readily hydrolyzed by moisture, forming hydrofluoric acid & thionyl fluoride.]
Exposure Routes
			inhalation, skin and/or eye contact
Symptoms
			irritation eyes, skin, mucous membrane; eye, skin burns (from SF4 releasing hydrofluoric acid on exposure to moisture); liquid: frostbite; In Animals: dyspnea (breathing difficulty), lassitude (weakness, exhaustion), rhinorrhea (discharge of thin nasal mucus)
Target Organs
			Eyes, skin, respiratory system
										
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: 1456

			
							

			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
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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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