Synonym:Zirconium disulfide

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Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title Compound12039-15-5100%5mg/m3 (as Zr)5mg/m3 (as Zr)

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Section 3: Hazards Identification
Forms highly toxic and flammable hydrogen sulfide gas on exposure to acids or stomach fluids. Material is
Emergency Overview:
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.
Irritating to the nose, mucous membranes and respiratory tract. Gastric juices may cause release of toxic
Ingestion:
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

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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: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 andIf 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.

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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.

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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.

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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 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.

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SECTION 9: Physical and Chemical Properties
Color and Form:-200 mesh reddish-brown pwdr.
Molecular Weight:155.35
Melting Point:1550°
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:3.87
Odor:odor of sulfur
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:Contact of dust cloud with an ignition source.
Incompatibility:Oxidizing agents and mineral acids
Decomposition Products:hydrogen sulfide, sulfur dioxide, and metal oxides.

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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
Ecological Information:No information available

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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):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

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SECTION 15: Regulatory Information
TSCA:Listed in the TSCA inventory.
SARA (Title 313):Title compound not listed.
Second Ingredient:none

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SECTION 16 - ADDITIONAL INFORMATION
N/A