ELECTRONIC SPACE PRODUCTS INTERNATIONAL
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MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Bismuth Selenide Chemical Family: Metal selenide
CAS #: 12068-69-8 Formula: Bi2Se3
II HAZARDOUS INGREDIENTS
Hazardous Components % OSHA/PEL ACGIH/TLV
Bismuth Selenide 0-100 0.2 mg (Se)/m3 0.2 mg (Se)/m3
HMIS Ratings: Health: 2 Flammability: 0 Reactivity: 1
III PHYSICAL DATA
Boiling Point: Decomposes Melting Point: 710 oC
Specific Gravity (H2O=1): 6.82 gm/c at 20 oC Vapor Pressure: N/E
Vapor Density: N/A Evaporation Rate: N/A
Solubility in H2O: Insoluble % Volatile: N/E or N/A
Appearance and Odor: Gray powder and pieces, odor not determined.
IV FIRE AND EXPLOSION HAZARD DATA
Flash Point: N/E or N/A Method Used: Non-flammable
Explosive Limits: Lower: N/A Upper: N/A
Extinguishing Media: Use suitable extinguishing media for surrounding materials and type of fire.
Special Firefighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.
Unusual Fire and Explosion Hazards: When heated to decomposition, bismuth selenide may emit toxic fumes of hydrogen selenide and bismuth oxide fumes.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
To the best of our knowledge the chemical, physical and toxicological properties of bismuth selenide have not been thoroughly investigated and recorded.
Bismuth and bismuth compounds are often poorly absorbed. Should absorption occur, however, exposure may cause loss of appetite, headache, skin rash, exodermatitis, kidney injury and jaundice. Repeated or prolonged exposure may cause a bismuth line or black spots on the gums, foul breath and salivation.
Selenium may cause amyotrophic lateral sclerosis, bronchial irritation, gastrointestinal distress, vasopharyngeal irritation, garlic odor on breath and sweat, metallic taste, pallor, irritability, excessive fatigue, loss of fingernails and hair, pulmonary edema, anemia and weight loss.
Acute Effects:
Inhalation: DANGER-POISON. May cause irritation to the upper respiratory system, insomnia, headache, chill, fever, dyspnea, bronchitis, dryness of the mouth and a metallic taste.
Ingestion: DANGER-POISON. May cause constipation and abdominal pain, colic, tremors, nausea, vomiting, diarrhea, metallic taste, loss of appetite, irritability and muscle pain.
Skin: May cause irritation.
Eye: May cause irritation.
Chronic Effects:
Inhalation: May cause chronic selenium poisoning, garlic like odor to the breath, pallor, nervousness and depression . Continued intoxication may cause loss of nails and hair, hemolytic anemia, and kidney, liver and spleen damage.
Ingestion: May cause anemia, gingival bismuth line, paralysis in the wrist and permanent neurological injury.
Skin: May cause dermatitis.
Eye: May cause visual disturbances such as blurred vision.
Target Organs: May affect the respiratory system, gastrointestinal tract, central nervous system, liver, kidneys, blood, skin, and the gingival tissue.
Medical Conditions Generally Aggravated by Exposure: Pre-existing skin and respiratory disorders.
Carcinogenicity: NTP: Yes IARC: No OSHA: No
EMERGENCY AND FIRST AID PROCEDURES:
INHALATION: Remove victim to fresh air, keep warm and quiet, give oxygen if breathing is difficult and seek medical attention.
INGESTION: Do not induce vomiting. Seek immediate medical attention.
SKIN: Remove contaminated clothing, brush material off skin, wash affected area with mild soap and water. Seek medical attention if symptoms persist.
EYE: Flush eyes with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention.
VI REACTIVITY DATA
Stability: Stable
Conditions to Avoid: Decomposes when heated in air.
Incompatibility (Materials to Avoid): Water/moisture, acids, oxidizing agents.
Hazardous Decomposition Products: Fumes of selenium, hydrogen selenide and bismuth oxides.
Hazardous Polymerization: Will not occur.
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material is Released or Spilled: Wear appropriate respiratory and protective equipment specified in section VIII. Isolate spill area and provide ventilation. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Take care not to raise dust.
Waste Disposal Method: Dispose of in accordance with all Federal, State and Local regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection: NIOSH approved respirator.
Ventilation: Use local exhaust to maintain concentration at or below the PEL, TLV. General exhaust is not recommended.
Protective Gloves: Rubber gloves
Eye Protection: Safety glasses
Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Store in a tightly sealed container. Store in a cool, dry area. Wash thoroughly after handling. Ensure good ventilation at the workplace. Open and handle container with care. Store away from water/moisture.
Other Precautions: Keep ignition sources away. Store away from oxidizing agents. Do not store together with acids. Protect from humidity and water.
Work Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.
The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.
Issued by: S. Dierks
Date: June 2005