1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

E-Mail: sales@espimetals.com










Trade Name:                    Palladium Oxide                                                           Chemical Nature:             Metallic Element

Chemical Family:             Metal Oxide                                                                  Formula:                           PdO

Molecular Weight:           122.42                                                                           CAS #:                               1314-08-5






Hazardous Components:               OSHA PEL:       ACGIH TLV:     Other Limits:     Percentage:

Palladium Oxide                              NE                       NE                        NE                      0.0-100.0


SEC. 302 (EHS): No       SEC. 304 RQ: No            SEC. 313: No






Boiling Point:                                  N/E or N/A                                                     Melting Point:                  870.0 oC

Specific Gravity (water=1):           9.70 g/cc at 20.0 oC                                        Solubility in H2O:            Insoluble

Vapor Pressure (mm Hg):             N/A                                                                 Vapor Density (Air=1):   N/A

Evaporation Rate:                          N/A                                                                 Percent Volatile:              N/E or N/A

Physical States:                               Solid                                                               Appearance and Odor:    Black Powder






Flash Point: N/E or N/A (Method Used: Non-flammable)                                   Explosive Limits: LEL: N/A        UEL: N/A

Extinguishing Media: Use: Not Applicable. Use suitable extinguishing agent for surrounding materials and type of fire.


Special Fire Fighting 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 Hazard: None Recorded






Stability: Stable

Conditions to Avoid-Instability: None

Incompatibility (Materials to avoid): Alkalies, hydrogen bromide, and hydrobromic acid


Hazardous Decomposition or Byproducts: None recorded

Hazardous Polymerization: Will not occur

Hazardous Polymerization: None








Routes of Entry: Inhalation, Skin, Eyes, Ingestion


Health Hazards (acute and chronic):


              To the best of our knowledge the chemical, physical and toxicological properties of palladium oxide have not been thoroughly investigated and recorded. May be a skin sensitizer. In the laboratory, palladium appears to bind to many cell components; blocks the action of a number of enzymes and interferes with use of energy by nerves and muscles; induces lung malfunction and produces abnormal fetuses. Lethal intravenous doses cause appetite loss, hemolysis, renal deposition and bone marrow damage (Sax, Dangerous Properties of Industrial Materials, eighth edition).


Inhalation: Acute: Inhalation of dust or powder may cause abrasive irritation to the respiratory system.

Chronic: May induce lung malfunction and produce abnormal fetuses.


Ingestion: Acute: Poorly absorbed by the body when ingested.

Chronic: No Chronic health effects recorded.


Skin: Acute: May cause abrasive irritation and possibly may be a skin sensitizer.

Chronic: No chronic health effects recorded.


Eye: Acute: May cause abrasive irritation.

Chronic: No chronic health effects recorded.


Target Organs: No target organs recorded

Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory disorders.

Carcinogenicity: NTP: No           IARC Monographs: No                OSHA Regulated: No


Recommended Exposure Limits: See"Section 2"

LD50/LC50: No toxicity date recorded


Signs and Symptoms of Exposure:


Inhalation: May cause red, dry throat and coughing.

Ingestion: No acute or chronic health effects recorded.

Skin: May cause redness and itching

Eye: May cause redness, itching and watering




INHALATION: Remove victim to fresh air; keep warm and quiet; give oxygen if breathing is difficult and seek medical attention if symptoms persist.

INGESTION: Not Applicable.

SKIN: Remove contaminated clothing; brush material off skin; wash affected area with mild soap and water; seek medical attention if symptoms persist.

EYE: Flush eyes with lukewarm water, lifting upper and lower eyelids for at least 15 minutes. Seek medical attention if symptoms persist.










Steps to Be Taken in Case Material Is Released or Spilled: Wear appropriate respiratory and protective equipment specified in Section VIII-Control Measures. 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 Regulations.

Hazard Label Information: Store in a cool, dry area in a tightly sealed container. Wash thoroughly after handling.


Precautions to Be Taken in Handling and Storing: None

Other Precautions: None






Respiratory Protection (Specify Type): NIOSH approved dust-mist-vapor respirator.

Ventilation: Local Exhaust: To maintain concentration at low exposure levels Mechanical (General): Recommended

Special: None                                                                                                                        Other: None


Protective Gloves: Rubber gloves                                                                                        Eye Protection: Safety glasses

Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination


Work/Hygienic/Maintenance 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 areas. Wash thoroughly before eating and smoking. Do not blow dust off clothing or skin with compressed air.






              Some of the chemicals listed herein are research or experimental substances which may be toxic, as defined by various governmental regulations. In accordance with Environmental Protection Agency regulations and Toxic Substance Control Act (TSCA), these materials should only be handled by, or under direct supervision of, a "technically qualified individual", as defined in 40 CFR 710.2(aa).


              The above information is accurate to the best of our knowledge. However, since data safety standards, and government regulations are subject to change, and the conditions of handling and use or misuse are beyond our control, ESPI MAKES NO WARRANTY, EITHER EXPRESSED NOR IMPLIED, WITH RESPECT TO THE COMPLETENESS OR CONTINUING ACCURACY ON THE INFORMATION CONTAINED HEREIN, AND DISCLAIMS ALL LIABILITY FOR RELIANCE THEREON. Users should satisfy themselves that they have all current data relevant to their particular use.



Prepared By:       S. Dierks

Dated:                  January 1994