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                                              MATERIAL SAFETY DATA SHEET





I        PRODUCT IDENTIFICATION



                            Terbium Chloride, anhydrous                                                   TbCl3

Trade Name:                                                                           Form ula:

                            Inorgan ic Salt                                                               100%

Chem ical Nature:                                                                     % Activity:

                            10042 -88-3

CAS #:





II       HAZAR DOUS INGRED IENTS



Hazardous Component                   %                  OSHA/PEL                     ACGIH/TLV

Terbium Chloride                      0-100              N/E                          N/E





III      PHYSICAL DATA



                            180-200 oC (in HCl gas atmosphere)                                                     558 oC

Boiling Point:                                                                        Melting Point:

                            4.35 g/cc                                                                              N/A

Specific Gravity:                                                                     Vapor Density (Air=1):

                            No Data                                                                                Solu ble

Vapor Pressure:                                                                       Solubility in H 2O:

                            White Powder                                                                           Yes

Appearance and Odor:                                                                  Ionic Nature:





IV       FIRE AND EXPLOSION H AZARDS DATA



Flash Point (F)/Method: No Data                                                       Autoignition Temp: No Data

Flamm able Lim its in Air: Lower: N/D           Upper: N/D



Extingu ishing Media: Use water, carbon dioxide, dry chemical extinguishing agents, dry sand, or dry ground dolomite.

Special Fire Fighting Procedures: No special needed. Use normal procedures which includes wearing a NIOSH/MSH A approved

self-co ntained breathing appa ratus and full pro tective clothing. If w ithou t risk, rem ove ma terial from fire area . Coo l container with

water from maximum distance.



Unusual Fire and Explosion Hazards: May emit toxic fumes if thermally decomposed.





V        HEALTH HAZARD INFORMATION



Threshold Limit Value: Not Established

Effects of Overexposure: Irritating to skin, eyes an d m ucou s mem branes.



EMERG ENCY AND FIRST AID PROCEDURES:



INHALATION: Remove from exposure. Seek prompt, competent medical attention.

INGESTION: Remove from exposure. Seek prompt, competent medical attention.

SK IN: Rem ove an y con tamina ted clothing . Flood S kin w ith large volumes of water for 15 minu tes.

EYES: Flush w ith copiou s amo unts of w ater for at least 15 m inutes.

VI       REACTIVITY DATA



Stability: Stable

Co nditio ns to Av oid: Thermal decomposition.

Incompatibility (Material to Avoid): Acids or acid fumes



Haz ardous D ecomposition Produc ts: Chloride fumes

Hazardous Polymerization: Will not occur.





VII      SPILL OR LEAK PROC EDURES



Steps to Be Taken in Case Material Is Released or Spilled: We ar full protective clo thing and respira tory protection , elimin ate all

sources of ignition. Cover sp ill with dry sand or dry verm iculite, mix w ell and carefully transfer to a w ell-mark ed con tainer. Close

con tainer tightly. Sub mit o r retain for disposal.



Waste Disposal Method: Dispose o f in accord ance w ith Loca l, State and Federal regu lations.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection: NIOSH/MS HA approv ed dust mask for ordinary use, self-contained breathing apparatus for emergency use.

Ventilation: Use lo cal ex hau st to m aintain concentration at low exposure levels. General exhaust is not recom me nde d.

Special: Use a glove bag or box with dry inert atmosphere.



Protective Gloves: Rubber

Eye Protection: ANSI app roved safety goggles.



Other Protective Equipment: Lab coat and apron, flame and chemical resistant coveralls, eyewash capable of sustained flushing,

safety drench shower and hygienic facilities for washing.





IX       SPECIAL PRECAUTIONS



Precautions to Be Taken in Handling and Storage: Keep containe r tightly closed. Sto re in a coo l, dry, well-ventilated area. W ash

thoroughly after use.



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

smok ing. Do not blow dust off clothing or skin with comp ressed air.



Precautionary Labeling: Warning: Irritates skin and eyes



         Employers should use this information only as a supplement to other information gathered by them, and should make

indepen den t judg em ent of suitab ility of this informa tion to ensu re pro per u se and protect th e hea lth and safety of emp loyees. Th is

information is furnished without w arranty, and any use of the produc t not in conform ance with this M SD S, or in com bination w ith

any other prod uct or process, is the responsibility of the user.





Issued by:         S. Dierks

Date:              March 1984









                                                             -Terbium Chloride 2-