- Selenium sulfide
Brown red-yellow. Faint odor.
Medicine (treatment of seborrhea, medicated shampoos).
Registry Numbers and Inventories.
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
29 (-148 C)
0.03 g/cm3 (-65 C)
Solubility in water
Hazards and Protection.
All containers of selenium or its compounds should be stored in a dry, preferably cool room. Do not store near noncompatible materials such as acids or oxidizing agents.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate chemical protective clothing.
Wear positive pressure self-contained breathing apparatus.
If you should spill this chemical, use absorbent paper to pick up all liquid spill material. Seal the absorbent paper, as well as any of your clothing which may be contaminated, in a vapor-tight plastic bag for eventual disposal. Wash any surfaces you may have contaminated with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
May react vigorously with acids to release hydrogen sulfide gas May react with oxidizing agents, including inorganic oxoacids, organic peroxides and epoxides.
When heated to decomposition, it emits very toxic fumes of sulfur oxides and selenium.
Fires involving this compound can be extinguished using a dry chemical, carbon dioxide or Halon extinguisher.
May burn but does not ignite readily.
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Fire may produce irritating, corrosive and/or toxic gases.
NIOSH REL*: TWA 0.2 mg/m3 OSHA PEL*: TWA 0.2 mg/m3 [*Note: REL and PEL also apply to other selenium compounds (as Se) except Selenium hexafluoride.] IDLH 1 mg/m3 (as Se)
Dizziness, decreased reflexes, CNS depression, and coma have been reported.
Gastrointestinal effects are generally the first symptoms seen. Acute effects may include: vomiting, hypersalivation, diarrhea, abdominal pain, a burning sensation in the nostrils and/or oral mucosa, chemical burns of the alimentary tract and a garlic-like odor on the breath.
Pulmonary edema and cardiopulmonary arrest are possible.
Dermatitis and nasal irritation may be present.
Seek medical assistance.
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
Std. Transport #