Selenium sulfide

  • Selenium monosulfide
Formula
SSe
Structure
Description
Orange-yellow tablets or powder. Has a faint odor.

Registry Numbers and Inventories.
CAS
7446-34-6
RTECS
VT0525000
RTECS class
Tumorigen; Drug; Mutagen
UN (DOT)
3283
Beilstein/Gmelin
68528 (G)
RCRA
D010
New Zealand
Listed

Properties.
Formula
SSe
Formula mass
111.02
Decomposition point, °C
118-119
Density
3.056 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
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.
Handling
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.
Protection
Dispensers of liquid detergent should be available. In the laboratory, gloves and protective clothing should always be worn but should not be assumed to provide full protection. Carefully fitted masks or respirators may be necessary when working with particulates or gases, and disposable plastic aprons might provide additional protection. Protective clothing should be of distinctive color, as a reminder not to be worn outside the laboratory.
Respirators
Wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.
Small spills/leaks
If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces 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.
Stability
No data.
Incompatibilities
Incompatible with acids.

Fire.
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher.
Fire potential
This material is probably combustible.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
OSHA: PEL (8 h TWA): 0.2 mg/m3.
Carcinogin
N-2, CP65
Exposure effects
Dizziness, decreased reflexes, CNS depression, and coma have been reported.
   Ingestion
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.
   Inhalation
Pulmonary edema and cardiopulmonary arrest are possible.
   Skin
Dermatitis and nasal irritation may be present.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
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.
   Eyes
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.

Transport.
UN number
3283
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
SEC