Section 1: Product Identification
Chemical Name: Lanthanum (III) sulfide (99.9%-La) (REO)
CAS Registry Number: 12031-49-1
Formula: La2S3
EINECS Number: 234-752-8
Chemical Family: metal chalcogenides
Synonym: none
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 12031-49-1 100% no data no data
Section 3: Hazards Identification
Emergency Overview: Forms highly toxic gas on exposure to acids or stomach fluids. Irritating to skin, eyes, and respiratory tract.
Primary Routes of Exposure: Ingestion, inhalation, skin and eyes
Eye Contact: Causes moderate irritation of the eyes.
Skin Contact: Causes slight irritation of the skin.
Inhalation: Inhalation of dust will lead to irritation of the respiratory tract. Hydrogen sulfide gas, if formed, is poisonous.
Ingestion: Gastric juices may cause release of toxic hydrogen sulfide.
Irritating to skin, eyes and respiratory tract. Hydrogen sulfide gas may cause painful conjunctivitis, headache,
Acute Health Affects:
nausea, dizziness, pulmonary edema and possible death.
Chronic Health Affects: No information available on long-term chronic effects.
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: not applicable
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide 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 irritating fumes of hydrogen sulfide and sulfur dioxide.
Decomposion Products:
Dust may form explosive mixtures with air. Contact with acids gives off hydrogen sulfide, a toxic and
Unusual Fire or Explosion Hazards:
flammable gas.
SECTION 6: Accidental Release Measures
In the case of a spill, the fine powder should be covered with dry sodium carbonate or dolomite in order to
Spill and Leak Procedures:
reduce the formation of dust. Sweep up the mixture.
SECTION 7: Handling and Storage
Store in a tightly sealed container. Exposure to the atmosphere may lead to release of toxic hydrogen sulfide
Handling and Storage:
gas. Empty containers may retain product residues that evolve toxic gases.
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 appropriate chemical resistant gloves and protective clothing.
Ventilation: If possible, handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of a respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: 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: yellow powder
Molecular Weight: 374.01
Melting Point: 2100-2150°
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: 4.911
Odor: odor of sulfur
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air and moisture stable
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: Contact of dust cloud with an ignition source.
Incompatibility: oxidizing agents and mineral acids
Decomposition Products: hydrogen sulfide, sulfur dioxide, and metal oxides.
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
Ecological Information: No information available
SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Non-hazardous
Hazard Class (CFR): NA
Additional Hazard Class (CFR): NA
Packaging Group (CFR): NA
UN ID Number (CFR): NA
Shipping Name (IATA): Non-hazardous
Hazard Class (IATA): NA
Additional Hazard Class (IATA): NA
Packaging Group (IATA): NA
UN ID Number (IATA): NA
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound not listed.
Second Ingredient: none
SECTION 16 - ADDITIONAL INFORMATION
N/A
