Section 1: Product Identification
Chemical Name: Mercury (II) selenide (99.99%-Hg) PURATREM
CAS Registry Number: 20601-83-6
Formula: HgSe
EINECS Number: 243-910-5
Chemical Family: metal chalcogenides
Synonym: Mercuric selenide
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 20601-83-6 100% 0.025mg/m3 0.1mg/m3
Section 3: Hazards Identification
Toxic by inhalation, in contact with skin and if swallowed. Possible risk of harm to the unborn child and
Emergency Overview:
impaired fertility. Danger of cumulative effects.
Primary Routes of Exposure: Ingestion, Skin, inhalation of dust.
Eye Contact: May cause mild to severe irritation of the eyes. May deposit mercury in the lens of the eye.
Skin Contact: May cause mild to severe irritation of the skin. Toxic in contact with skin.
Toxic by inhalation. Dust may cause severe respiratory and gastrointestinal distress and may damage the
Inhalation:
central nervous system.
Toxic if swallowed. Lack of appetite, abdominal cramps, vomiting, kidney failure, paralysis. Mercury bonds to
Ingestion:
thiol groups of protein.
Toxic by inhalation, in contact with skin and if swallowed. Possible risk of harm to the unborn child. Danger of
Acute Health Affects:
cumulative effects.
The chronic effects of mercury poisoning include stomatitis, tremors, psychic disturbances, excessive
Chronic Health Affects: salivation, dermatitis, and pain on chewing. Other effects include loss of memory, insomnia, irritability and
depression, speech and gait impairment. May impair fertility.
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: no data
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: carbon dioxide, foam or dry powder
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self- contained breathing apparatus and full protective clothing.
Hazardous Combustion and If involved in a fire this material may emit toxic fumes containing mercury.
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.
SECTION 6: Accidental Release Measures
Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and
Spill and Leak Procedures:
swept up.
SECTION 7: Handling and Storage
Handling and Storage: Store in a cool, dry place in a tightly sealed container.
SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear protective clothing and gloves.
Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: gray pwdr.
Molecular Weight: 279.55
Melting Point: no data
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: no data
Odor: none
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air and moisture stable
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: none
Incompatibility: azides, fulminates, active metals, and strong oxidizing agents.
Decomposition Products: mercury and selenium fumes
SECTION 11: Toxicological Information
RTECS Data: No information available in the RTECS files.
Carcinogenic Effects: No data
Mutagenic Effects: No data
Tetratogenic Effects: No data
SECTION 12: Ecological Information
Avoid release to the environment. Very toxic to aquatic organisms May cause long-term adverse effects in the
Ecological Information:
aquatic environment.
SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Mercury compounds, solid, N.O.S.
Hazard Class (CFR): 6.1
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 2025
Shipping Name (IATA): Mercury compound, solid, N.O.S.
Hazard Class (IATA): 6.1
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 2025
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound: See category codes N458 and N725 for reporting.
Second Ingredient: None
SECTION 16 - ADDITIONAL INFORMATION
N/A
