ELECTRONIC SPACE PRODUCTS INTERNATIONAL
1050 Benson Way, Ashland, OR 97520
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E-Mail: sales@espimetals.com
MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Bismuth Tungstate Formula: Bi2(WO4)3
Chemical Nature: Mixed oxide metal tungstate CAS #: 13595-87-4
II HAZARDOUS INGREDIENTS
Hazardous Components % OSHA/PEL ACGIH/TLV Sec. 302 Sec. 304 Sec. 313
Bismuth Tungstate 0-100 N/E N/E No No No
Tungsten Compounds 0-100 5 mg/m3 5 mg/m3 No No No
HMIS Ratings (0-4): Health: 3 Flammability: 0 Reactivity: 0 Protective Equipment: E: glasses, gloves, respirator
III PHYSICAL DATA
Boiling Point 760 mm Hg: N/E or N/A Melting Point: N/E or N/A
Molecular Wt: 1160.67 Density: N/E
Vapor Pressure: N/A Solubility in H2O: Insoluble
Appearance and Odor: Greenish yellow powder, pieces, no odor % Volatile: N/E or N/A
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point (Method used): N/E or N/A Autoignition Temperature: N/A
Explosive Limits: Lower: N/A Upper: N/A
Extinguishing Media: Use suitable extinguishing media for surrounding material and type of fire.
Special Fire Fighting Procedures: Firefighters must wear full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.
Unusual Fire & Explosion Hazard: When bismuth tungstate is heated to decomposition, it may emit toxic fumes of bismuth, oxides of bismuth and tungsten trioxide.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
To the best of our knowledge the chemical, physical and toxicological properties of bismuth tungstate have not been thoroughly investigated.
Bismuth and its salts can cause kidney damage, although the degree of such damage is usually mild. Large doses can be fatal. Industrially it is considered one of the less toxic of the heavy metals. Serious and sometimes fatal poisoning may occur from the injection of large doses into closed cavities and from extensive application to burns. It is stated that the administration of bismuth should be stopped when gingivitis appears, for otherwise serious ulceration stomatitis is likely to result. Other toxic results may develop, such as a vague feeling of bodily discomfort, presence of albumin or other protein substance in the urine, diarrhea, skin reactions and sometimes serious exodermatitis.
Tungsten compounds are considered somewhat more toxic than those of molybdenum. However, industrially, this element does not constitute an important health hazard. Heavy exposure to the dust or the ingestion of large amounts of the soluble compounds produces changes in body weight, behavior, blood cells, choline esterase activity and sperm in experimental animals. (Sax, Dangerous Properties of Industrial Materials, eighth edition)
Acute Effects:
Inhalation: Inhalation may cause mild to moderate irritation of the respiratory system.
Ingestion: Insoluble bismuth compounds are generally considered to be of low toxicity. Chronic exposure via inhalation or ingestion can cause the development of "bismuth line", a blue-black line of the gum as well as foul breath and excessive salivation.
Skin: May cause irritation.
Eye: May cause irritation.
Chronic Effects: May cause dermatitis. No other chronic effects recorded.
Target Organs: May affect the kidneys
Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory 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: If conscious, give 1-2 glasses of milk or water and induce vomiting. Seek medical attention immediately.
SKIN: Remove any contaminated clothing, brush material off of skin, flush with running water, wash carefully with soap and water, seek medical attention.
EYE: Flush with water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention immediately.
VI REACTIVITY DATA
Stability: Stable
Conditions to Avoid: None
Incompatibility (Material to Avoid): No data recorded
Hazardous Decomposition Products: Bismuth, oxides of bismuth, tungsten, oxides of tungsten.
Hazardous Polymerization: None
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material Is Released or Spilled: Wearing protective clothing specified in section VIII, vacuum up using a high efficiency particulate absolute (HEPA) air filter. Empty containers should be disposed of in a manner which will not cause dusting during transportation to the ultimate disposal site.
Waste Disposal Method: In accordance with Local, State and Federal Waste Disposal Regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection (Specify Type): Use a NIOSH/MSHA approved dust, fume, mist respirator.
Ventilation: Handle in a controlled atmosphere. Use local exhaust to maintain concentration at low exposure levels. General exhaust is recommended.
Protective Gloves: Neoprene
Eye Protection: Safety glasses
Other Protective Equipment: Protective gear suitable to prevent contamination.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Store in a cool dry area. Store in tightly sealed container. Wash thoroughly after handling. Do not get in eyes, on skin or clothing. Do not breathe dust, vapor, mist, or gas.
Other Precautions: Handle in a controlled atmosphere.
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. Maintain eyewash capable of sustained flushing and safety drench shower in work area.
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 damages resulting from handling or contact with the above product.
Issued by: Steve Dierks
Date: October 2002