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CAS Number: 7439-98-7

93-4257
Molybdenum › Molybdenum powder (99.9%)
CAS Number: 7439-98-7
MDL Number: MFCD00003465
Molecular Formula: Mo
Molecular Weight: 95.94
Chemical Formula: Mo
Color and Form: 3-7 micron
Note:  

Safety: Hazardous

Physical Characteristics: melting point 2610°C, boiling point 5560°C, density 10.2

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SECTION 1: Product Identification
Chemical Name: Molybdenum powder (99.9%)
Product Number: 93-4257
CAS Registry Number: 7439-98-7
Formula: Mo
EINECS Number: 231-107-2
Chemical Family: metal or element
Synonym: None
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 7439-98-7 100 10mg/m3 15mg/m3
SECTION 3: Hazards Identification
Emergency Overview: May be irritating to skin, eyes and respiratory tract. Possible risk of harm to the unborn child.
Primary Routes of Exposure: Ingestion, inhalation (of dust or fume)
Eye Contact: The dust may cause slight to mild irritation of the eyes.
Skin Contact: The dust may cause slight to mild irritation of the skin.
Inhalation: Hazard associated with inhalation of fine dust or fume. May be irritating to nasal cavity and respiratory tract.
Ingestion: No specific information is available on the physiological effects of ingestion.
Acute Health Effects: Dust may be irritating to skin, eyes and respiratory tract. Possible risk of harm to the unborn child.
Chronic Health Effects: Possible risk of impaired fertility and irreversible effects.
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: none
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: Dry chemical or Class D metal fire agent.
Special Fire Fighting Procedures: If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products: none
Unusual Fire or Explosion Hazards: Flammable solid. Dust may form explosive mixtures with air. May self-ignite if wetted with alcohols or related organics.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with vermiculite or sodium carbonate and swept up.
SECTION 7: Handling and Storage
Handling and Storage: Store in a tightly sealed container. Handle fine powders in a well-ventilated area.
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.
Respirator: If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: 3-7 micron gray powder
Molecular Weight: 95.94
Melting Point: 2610°C
Boiling Point: 5560°C
Vapor Pressure: not applicable
Specific Gravity: 10.2
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: Strong mineral acids, halogens
Decomposition Products: None
SECTION 11: Toxicological Information
RTECS Data: Intratreachel (rabbit); LDLo: 70 mg/kg. Oral (rat); TDLo: 6050 ug/kg. Oral (rat); TDLo: 5800 ug/kg. Oral (mouse); TDLo: 448 mg/kg. Inhalation (rat); Cytogenetic anaylsis: 19500 ug/m3.
Carcinogenic Effects: No information available
Mutagenic Effects: Possible mutagen
Tetratogenic Effects: Possible reproductive effector
SECTION 12: Ecological Information
Ecological Information: No information available.
SECTION 13: Disposal Considerations
Disposal: Dispose of in accordance with local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Metal Powder, Flammable, N.O.S.
Hazard Class (CFR): 4.1
Additional Hazard Class (CFR): NA
Packaging Group (CFR): II
UN ID Number (CFR): UN# 3089
Shipping Name (IATA): Metal Powder, Flammable, N.O.S.
Hazard Class (IATA): 4.1
Additional Hazard Class (IATA): NA
Packaging Group (IATA): II
UN ID Number (IATA): UN# 3089
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory
SARA (Title 313): Not reportable under SARA Title 313.
Second Ingredient: None
Third Ingredient: None
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 12/26/2000
Revision Date: 12/14/2011

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