ELECTRONIC SPACE PRODUCTS INTERNATIONAL
1050 Benson Way, Ashland, OR 97520
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MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Molybdenum Oxide Chemical Family: Metal oxide
Formula: MoO3 CAS #: 1313-27-5
Synonyms: Molybdic anhydride, molybdenum trioxide, molybdenum (VI) oxide, molybdic trioxide
II HAZARDOUS INGREDIENTS
Hazardous Components % OSHA/PEL ACGIH/TLV Sec. 302 Sec. 304 Sec. 313
Molybdenum Trioxide 0-100 5 mg(Mo)/m3 5 mg(Mo)/m3 No No Yes
HMIS Ratings (0-4): Health: 3 Flammability: 0 Reactivity: 0
HMIS Protective Equipment: J: goggles, gloves, apron, respirator.
III PHYSICAL DATA
Boiling Point: 1155 oC (sublimes) Melting Point: 795 oC
Vapor Pressure: N/A Specific Gravity (H2O=1): 4.69 gm/cc
Vapor Density: N/A Solubility in H2O: Soluble
Appearance and Odor: Yellowish white to bluish grey powder, no odor. % Volatile: N/E or N/A
IV FIRE AND EXPLOSION HAZARD DATA
Flash Point: N/E or N/A Method Used: Non-flammable
Explosive Limits: Lower: N/A Upper: N/A
Extinguishing Media: Use suitable extinguishing media for surrounding materials and type of fire.
Special Firefighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.
Unusual Fire and Explosion Hazard: When heated to decomposition, molybdenum oxide may emit toxic fumes of molybdenum. Incandescent reaction with hot sodium, potassium or lithium. Violent reaction with interhalogens. Explosive reaction on contact with molten magnesium.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
Molybdenum compounds are poison by subcutaneous and intraperitoneal routes. Molybdenum and its compounds are highly toxic based upon animal experiments. Symptoms of acute poisoning include severe gastrointestinal irritation with diarrhea, coma and deaths from heart failure. Experimental animals exposed to high levels accumulated Mo in the lungs, spleen and heart, and showed a decrease of DNA and RNA in the liver, kidneys and spleen. Workers exposed to Mo or MoO3 over a period of 3-7 years have suffered from pneumonociosis. Hexavalent molybdenum compounds are readily absorbed through the gastrointestinal tract. (Sax, Dangerous Properties of Industrial Materials, eighth edition.)
Acute Effects:
Inhalation: May cause irritation to the upper respiratory system, pulmonary fibrosis and cough.
Ingestion: May cause acute molybdenum poisoning.
Skin: May cause severe irritation. Poison by subcutaneous and intraperitoneal routes.
Eye: May cause severe irritation.
Chronic Effects:
Inhalation: May cause pneumonociosis.
Ingestion: May cause chronic molybdenum poisoning.
Skin: No chronic health effects recorded.
Eye: No chronic health effects recorded.
Routes of Entry: Inhalation, ingestion, skin, eyes.
Target Organs: May affect the lungs, bones, spleen and heart.
Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory disorders.
Carcinogenicity: NTP: No IARC: No OSHA: No
EMERGENCY AND FIRST AID PROCEDURES:
INHALATION: Remove victim from the contaminated area and seek medical attention immediately.
INGESTION: If swallowed, give water and seek medical attention. Do not induce vomiting until consulting a physician.
SKIN: Remove contaminated clothing. Brush material off skin, wash affected area with mild soap and water. Seek medical attention.
EYE: Flush eyes with water for 30 minutes until no evidence of the chemical remain. Seek medical attention immediately.
VI REACTIVITY DATA
Stability: Stable
Conditions to Avoid: None
Incompatibility (Materials to Avoid): Chlorine trifluoride, potassium, sodium, molten magnesium, aluminum, lithium, silicon.
Hazardous Decomposition Products: Molybdenum and molybdenum oxides.
Hazardous Polymerization: Will not occur.
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material is Released or Spilled: Wear appropriate respiratory and protective equipment specified in Section VIII. Isolate spill area and provide ventilation. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Take care not to raise dust.
Waste Disposal Method: Dispose of in accordance with all Federal, State and Local regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection: NIOSH approved dust, mist, fume cartridge respirator
Ventilation: Use local exhaust to maintain concentration at or below the PEL, TLV. General exhaust is recommended.
Protective Gloves: Rubber gloves
Eye Protection: Safety goggles
Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Store in a clean, dry area. Containers should be sealed at all times. Do not handle without proper protective equipment. Wash thoroughly after handling.
Work Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.
The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.
Issued by: S. Dierks
Date: May 2005