MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Hafnium Oxide Synonym: Hafnium Dioxide
Chemical Family: Metal Oxide Formula: HfO2
CAS #: 12055-23-1
II HAZARDOUS INGREDIENTS
TLV: 0.5 mg/m3 OSHA PEL: 500 ug/m3
Hafnium Oxide %: 100
HMIS Rating: Health: 1 Reactivity: 0 Flammability: 0 Personal Protection: E
III PHYSICAL DATA
Boiling Point (oF): 2758 oC 卤 25 oC
5400 Melting Point:
9.68 at 20 oC
Vapor Density: Specific Gravity: N/A
Solubility in H2O: Insoluble Appearance and Odor: White powder, no odor
IV FIRE AND EXPLOSION HAZARDS DATA
Flammable Limits: Upper: Non-flammable Lower: N/A Flash Point (Method used): N/A
Extinguishing Media: Use dry chemical, CO2
Unusual Fire and Explosion Hazards: Material may generate toxic fumes is involved in a fire.
Special Fire Fighting Procedures: Wear NIOSH/MSHA approved self-contained breathing apparatus and full protective clothing to
prevent contact with skin and eyes.
V HEALTH HAZARD INFORMATION
Toxicity Data: No data on this compound. unk-mus LD50: 76 mg/kg
Route(s) of Entry: Inhalation, Skin, and Ingestion
Effects of Overexposure:
Inhalation: May cause pulmonary irritation. Coughing or sneezing may occur.
Dermal/Eye Contact: May cause irritation, inflammation may occur.
Other: Ingestion may cause some discomfort. Hafnium is considered relatively non-toxic due to poor absorption of it in the alimen-
tary tract of mammals. Chronic exposure may cause liver damage.
Medical Conditions Generally Aggravated by Exposure: Previous respiratory and eye disorders.
Carcinogenicity: None NTP: No IARC Monographs: No OSHA Regulated: No
EMERGENCY AND FIRST AID PROCEDURES:
INGESTION: Administer 1 or 2 glasses of water or mild and induce vomiting. Seek medical attention.
INHALATION: Remove victim to fresh air. Administer oxygen. Seek medical attention.
SKIN: Brush material off skin. Wash affected area with soap and water.
EYES: Flush eyes with lukewarm water for at least 15 minutes. Seek medical attention.
VI REACTIVITY DATA
Stability: Stable
Incompatibility (Material to Avoid): Strong acids, strong bases, no specific data.
Conditions Contributing to Instability: Heat.
Hazardous Polymerization: Will not occur
Hazardous Decomposition Products: Thermal and other: HfO2, Hf.
Conditions to Avoid: Heat, incompatible materials.
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material Is Released or Spilled: Wearing full protective clothing and self contained breathing appara-
tus. Isolate the area where the spill occurred and insure proper ventilation. Vacuum up spill using a high efficiency unit and place in
a container for proper disposal. Take care not to raise dust.
Waste Disposal Method: In accordance with regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection: NIOSH/MSHA approved dust-mist fume cartridge respirator.
Ventilation: Local Exhaust: Maintain exposure below TLV. Mechanical (General): Recommended
Special: N/A
Protective Gloves: Neoprene Eye Protection: Safety glasses with side shields.
Other Protective Equipment: Wear full protective clothing at all times to prevent contamination of skin and clothes.
IX SPECIAL PRECAUTIONS
Other Handling and Storage Conditions: Store in tightly closed containers in a cool, dry place. Wash hands and face thoroughly.
Transportation Requirements: Not classified by DOT.
Prepared by: S Dierks
Dated: October 1995
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