139220-25-0

Chemical Family:organometallic complexes
Synonym:Schrock's catalyst

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Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound139220-25-0100%10mg/m3( as Mo)15mg/m3 (as Mo)

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Section 3: Hazards Identification
Emergency Overview:May be irritating to skin, eyes and mucous membranes.
Primary Routes of Exposure:Ingestion, inhalation
Eye Contact:May cause mild to moderate irritation of the eyes.
Skin Contact:May cause slight to mild irritation of the skin.
Inhalation:Dust may be irritating to the nose, mucous membranes and respiratory tract.
Ingestion:No specific information is available on the physiological effects of ingestion.
Acute Health Affects:Dust may be irritating to skin, eyes and respiratory tract.
No information available on long-term chronic effects. Product contains fluorine which may generate fluoride
Chronic Health Affects:
ion causing hypocalcaemia, deterioration of bone and tooth structure, kidney and liver damage.
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 in
Inhalation:
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:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide, dry powder or foam.
If involved in a fire, fire fighters should be equipped with NIOSH approved positive pressure self-contained
Special Fire Fighting Procedures:
breathing apparatus and full protective clothing.
Hazardous Combustion andIf involved in a fire this material may emit toxic organic fumes.
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:Handle and store the material under an inert atmosphere of nitrogen or argon. Keep away from heat.

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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 Respiratory
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:yellow to orange powder
Molecular Weight:765.53
Melting Point:no data
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:no data
Odor:not determined
Solubility in Water:reacts with water

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SECTION 10: Stability and Reactivity
Stability:air and moisture sensitive (store cold)
Hazardous Polymerization:No hazardous polymerization.
Conditions to Avoid:contact with air and moisture
Incompatibility:oxidizing agents and halogens
Decomposition Products:carbon monoxide, carbon dioxide, organic fumes and molybdenum oxide.

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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:Not 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