Sulfur, Elemental

CAS RN:7704-34-9

Hazards Summary

The major hazards encountered in the use and handling of sulfur stem from its toxicologic properties and flammability. Toxic by all routes (ie, inhalation, ingestion, and dermal contact), exposure to this pale yellow, crystalline substance may occur from the extraction of sulfur-bearing rock, its use in fertilizer, the production of sulfuric acid and other sulfur compounds, in wood pulping, in the vulcanization of rubber, and in the manufacture of matches, explosives, and dyes. Effects from exposure may include ulceration of the skin, conjunctivitis, inflammation of the nasal mucosa, shortness-of-breath, asthma, and tracheobronchitis. In activities and situations where over-exposure may occur, wear chemical protective clothing and a self-contained breathing apparatus. If exposure should occur, immediately irrigate eyes with copious amounts of tepid water for at least 15 minutes and wash skin extremely thoroughly with soap and water. Contaminated clothing should be removed and left at the work site for cleaning before reuse. Sulfur is an easily ignitable solid. In a powdered form it may form explosive mixtures with air, or in contact with oxidizing materials. Sulfur burns with a blue flame that may be difficult to see in daylight, and produces toxic sulfur dioxide gas. For fires involving sulfur, extinguish with dry chemical, sand, water spray (straight streams may scatter the material), fog, or standard foam. If water is used, apply from as far a distance as possible. Sulfur should be stored in a cool, well ventilated area, away from sources of ignition, physical damage, chlorates, nitrates, and other oxidizing materials. Sulfur may be shipped domestically via air, rail, road, and water. International shipments may require the label, "Flammable solid." Small dry spills of sulfur may be carefully shovelled into a clean, dry, covered container for recovery or later disposal. Large spills may be wetted down with water and diked for later disposal. Do not allow material to enter water sources or sewers.
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed