Sulfur tetrafluoride

Synonyms

Tetrafluorosulfurane; [ChemIDplus] UN2418

Category

Corrosive Gases

Description

Colorless gas with an odor like sulfur dioxide. [Note: Shipped as a liquefied compressed gas.]; [NIOSH]

Sources/Uses

Used as a fluorine donor in chemical reactions to produce water-repellant materials, pesticides, and other organic and inorganic compounds; [ACGIH]

Comments

May cause skin burns (from SF4 releasing hydrofluoric acid on exposure to moisture); [NIOSH] After an industrial accident, six exposed workers developed cough, dyspnea, and chest tightness. Symptoms resolved within one to four weeks. [ACGIH] Possible frostbite from contact with liquid; [NIOSH] A corrosive substance that can cause pulmonary edema; Evaporating liquid can cause frostbite; May cause fluorosis; [ICSC] See "FLUORIDES."

Biomedical References

Insufficient data

Yes

0.1 ppm

LCLo (rat) = 19 ppm/4h

Yes

Skin burns

Diseases

Occupational diseases associated with exposure to this agent:

• Pneumonitis, toxic