Sulfur tetrafluoride
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CAS
7783-60-0
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SF4
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RTECS
WT4800000
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Synonyms & Trade Names
Tetrafluorosulfurane
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DOT ID & Guide
2418 125
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Exposure
Limits
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NIOSH REL: C 0.1 ppm (0.4 mg/m3)
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 4.42 mg/m3
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Physical Description
Colorless gas with an odor like sulfur dioxide. [Note: Shipped as a liquefied compressed gas.]
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MW: 108.1
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BP: -41°F
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FRZ: -185°F
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Sol: Reacts
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VP(70°F): 10.5 atm
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IP: 12.63 eV
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RGasD: 3.78
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Fl.P: NA
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UEL: NA
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LEL: NA
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Nonflammable Gas
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Incompatibilities & Reactivities
Moisture, concentrated sulfuric acid, dioxygen difluoride [Note: Readily hydrolyzed by moisture, forming hydrofluoric acid & thionyl fluoride.]
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Measurement Methods
OSHA ID110
See: NMAM or OSHA Methods
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Personal Protection & Sanitation (See protection codes)
Skin: Frostbite
Eyes: Frostbite
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation
Provide: Frostbite wash
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First Aid (See procedures)
Eye: Frostbite
Skin: Frostbite
Breathing: Respiratory support
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, skin and/or eye contact
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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 mucus)
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Target Organs
Eyes, skin, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 1456
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