Mercury(II) selenide

Synonym:Mercuric selenide

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Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title Compound20601-83-6100%0.025mg/m30.1mg/m3

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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

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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.

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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 andIf 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.

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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.

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SECTION 7: Handling and Storage
Handling and Storage:Store in a cool, dry place in a tightly sealed container.

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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.

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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

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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

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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

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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.

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SECTION 13: Disposal Considerations
Disposal:Dispose of according to local, state and federal regulations.

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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

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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

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SECTION 16 - ADDITIONAL INFORMATION
N/A