ELECTRONIC SPACE PRODUCTS INTERNATIONAL
1050 Benson Way, Ashland, OR 97520
Toll Free (800) 638-2581 * Fax (541) 488-8313
E-Mail: sales@espimetals.com
MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Lead Molybdate Formula: PbMoO4
Chemical Family: Metal molybdate CAS #: 10190-55-3
II HAZARDOUS INGREDIENTS
Hazardous Component % OSHA/PEL ACGIH/TLV Sec. 302 Sec. 304 Sec. 313
Lead Molybdate 0-100 .05 mg(Pb)/m3 .15 mg(Pb)/m3 No Yes 1 lb Yes
III PHYSICAL DATA
Boiling Point: N/E or N/A Melting Point: 1060 - 1070 oC
Specific Gravity: 6.92 g/cc at 25 oC Vapor Density: N/A
Vapor Pressure: N/E Solubility in H2O: Insoluble
Appearance and Odor: Light yellow powder and pieces, no odor % Volatiles: N/E or N/A
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point: N/E or N/A Method Used: Non-flammable
Explosive Limits: Upper: N/A Lower: 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 & Explosion Hazards: When heated to decomposition, lead molybdate may emit toxic lead oxide fumes.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
To the best of our knowledge the chemical, physical and toxicological properties of lead molybdate have not been thoroughly investigated and recorded.
Some lead compounds are experimental neoplastigens and tumorigens. Lead poisoning is one of the commonest of occupational diseases. The lead must be in such form, and so distributed, as to \ain entrance into the body or tissues of the worker in measurable quantity, otherwise no exposure can be said to exist. Some lead compounds are carcinogens of the lungs and kidneys. Lead is a cumulative poison. Increasing amounts build up in the body and eventually reach a point where symptoms and disability occur.
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. (Sax, Dangerous Properties of Industrial Materials, eighth edition)
Acute Effects:
Inhalation: DANGER-POISON. May cause irritation to the upper respiratory system, insomnia, dryness of the mouth and a metallic taste.
Ingestion: DANGER-POISON. May cause constipation and abdominal pain, colic, tremors, nausea, vomiting, diarrhea, metallic taste, loss of appetite, irritability and muscle pain. May cause acute molybdenum poisoning and lead toxicity.
Skin: May cause irritation.
Eye: May cause eye irritation.
Chronic Effects:
Inhalation: May cause pneumonoconiosis and chronic lead toxicity. May be toxic to the central and peripheral nervous system affecting the cerebellum, spinal cord, motor and sensory nerves.
Ingestion: May cause anemia, gingival lead line, paralysis in the wrist and permanent neurological injury. May cause chronic molybdenum poisoning and lead toxicity. May cause nephritis, scarring and shrinking of the kidney tissue.
Skin: No chronic health effects recorded.
Eye: No chronic health effects recorded.
Route(s) of Entry: Inhalation, ingestion, skin, eyes
Target Organs: May affect the gastrointestinal tract, central nervous system, lungs, spleen, bones, heart, kidneys, blood, skin and the gingival tissue.
Medical Conditions Generally Aggravated by Overexposure: Pre-existing lung and circulatory disorders.
Carcinogenicity: NTP: No IARC: No OSHA: No
EMERGENCY AND FIRST AID PROCEDURES:
INHALATION: Remove to fresh air; keep warm and quiet; give oxygen if breathing is difficult and seek medical attention.
INGESTION: Give 1-2 glasses of milk or water and induce vomiting; seek medical attention. Never induce vomiting or give anything by mouth to an unconscious person.
SKIN: Remove contaminated clothing; brush material off skin; wash affected area with mild soap and water; seek medical attention if symptoms persist.
EYES: Flush eyes with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention if symptoms persist.
VI REACTIVITY DATA
Stability: Stable
Conditions to Avoid: None
Incompatibility (Material to Avoid): None recorded.
Hazardous Decomposition Products: Fumes of lead 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 Local, State and Federal Waste Disposal Regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection: NIOSH/MSHA approved dust, mist, fume respirator.
Ventilation: Use local exhaust to maintain concentration at or below the PEL. General exhaust is not recommended.
Protective Gloves: Rubber gloves
Eye Protection: Safety glasses
Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storing: Store in tightly sealed containers. Store in a cool, dry area. Wash thoroughly after handling.
Other Precautions: None
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 and smoking. Do not blow dust off clothing or skin with compressed air. Maintain eyewash capable of sustained flushing, safety drench shower and facilities for washing.
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: December 2003