GFS CHEMICALS, INC.

                                     P.O. Box 245 Powell, OH 43065

                                  740-881-5501(Tel.) 740-881-5989(Fax)

                                  1-800-424-9300(Chemtrec 24Hr. Info.)



                               MATERIAL SAFETY DATA SHEET

                                                                                                         1273

                                        RARE EARTH FLUORIDE



CHEMICAL NAME & SYNONYMS                                                 DOT CLASS     SARA TITLE 313

Rare Earth Fluoride                                                      NR            No

                                                                         TSCA listed - Yes



FORMULA                             REPORTABLE QUANTITY                  F.W.              CAS#

                                            N/A                          N/A               68188-85-2

Mixture of CeF 3, LaF 3, PrF 3

and other rare earth fluorides.



PHYSICAL DATA

Insoluble in water. Melting point > 1400°C. B.p. >2300°C. Soluble in sulfuric acid.



APPEARANCE & ODOR

Gray to tan to brown granules or powder. Odorless.



REACTIVITY & CONDITIONS TO AVOID

Not a reactive hazard. Roasting with sulfuric acid will release hydrofluoric acid.



FIRE HAZARDS

Extremely high temperatures may cause         decomposition     with      evolution   of    fluorine.   Avoid

inhalation. Firefighters wear SCBA.



EXTINGUISHER                                                             FLASHPOINT        LEL   UEL

Water to cool containers. Fight surrounding fire.                        N/A               N/A   N/A



HEALTH HAZARDS

Dust will irritate eyes. Considered toxic when inhaled. Occupational exposure standard. TWA:

Air: 2.5 mg (F)/m 3. Not considered toxic orally. No evidence of carcinogenicity. Symptoms of

chronic over exposure to fluorides-fluorosis, mottling of tooth enamel,sclerosis of bones (can

be seen with x-ray). May cause severe bone changes, pain in joints. May cause pulmonary

fibrosis, loss of weight, anorexia and dental defects.



SPECIAL PRECAUTIONS

Wear goggles while handling. Use adequate ventilation or suitable respirator to avoid inhalation

of dust.



FIRST AID

Wash skin and eyes thoroughly with water after contact. For inhalation, remove to fresh air and

seek medical attention.



SPILLS & LEAKS

Sweep up for reclamation if possible. Avoid formation of dusts by wetting with water. Disposal

to solid waste.





CATALOG #                                                      PREPARED BY                      DATE

1273                                                               MDM                     December 4, 2003