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



                  Yttrium Oxide                                                                        IIIA

Trade Name:                                                                 Chem ical Nature:

                  Y 2O 3

Form ula:





II       HAZAR DOUS INGRED IENTS



Hazardous Component                 %                OSHA/PEL               ACGIH/TLV

Yttrium Oxide                       0-100            N/A                    N/A





III      PHYSICAL DATA



                                    N/A                                                                N/A

Melting Point:                                                              Boiling Point:

                                    N/A                                                                N/A

Specific Gravity:                                                           Vapo r Density:

                                    N/D                                                                Insoluble

Vapor Pressure (mm Hg):                                                     Solubility in H 2O:

                                    Wh ite odorless powder.

Appearance and Odor:





IV       FIRE AND EXPLOSION H AZARDS DATA



Flash Point (Method used): N/A                                              Autoignition Temp: N/A

Flam mab le Limits: Upper: N/A Lower: N/A



Special Fire Fighting Procedures: None

Unusual Fire & Explosion Hazard: None





V        HEALTH HAZARD INFORMATION



Threshold Limit Value: Not established, non-toxic, LD50 rat orally > 1000 mg/kg.



Effects of Over Expo sure:



Skin : Can cause skin irritation,

Eyes: Can cause eye particle irritation.

Ingestion: Unknown.



EMERG ENCY AND FIRST AID PROCEDURES:



INHALATION: Seek medical attention.

INGESTION: Seek medical attention.

SK IN: Wash w ith water.

EYE: Flush with water.

VI       REACTIVITY DATA



Stability: Stable

Incompatibility (Material to Avoid): Acids



Haz ardous D ecomposition Produc ts: None known

Hazardous Polymerization: Will Not Occur





VII      SPILL OR LEAK PROC EDURES



Steps to Be Taken in Case Material Is Released or Spilled: Sweep up or wipe up and dispose.



Waste Disposal Information: In accord ance w ith Federal, State and L ocal w aste disposal reg ulations.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection (Specify Type): Particle Mask.



Ventilation: Loc al exh aust if dust present.





IX       SPECIAL PRECAUTIONS



Precautions to Be Taken in Handling and Storage: Store in closed container, will absorb moisture and CO2.



Wo rk Practices: Imp lem ent en gineering and wo rk practice controls to re duc e and ma intain c onc entration o f exp osure 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 abo ve inform ation is believ ed to be co rrect, but do es no t purp ort to b e all inclu sive an d sha ll be used only as a gu ide.

ESPI shall not be held liab le for any d am age resulting from h and ling o r from contact with the abov e pro duc t.





Issued by:         S. Dierks

Date:              November 2001









                                                                -Yttrium Oxide 2-