MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Chemical Name or Synonym:          Praseodymium Fluoride                        Formula: PrF3





II      HAZARDOUS INGREDIENTS



Component:       Praseodymium Fluoride





III     PHYSICAL DATA



Boiling Point:       Not Available                                              Melting Point:       Not Available

Specific Gravity:    Not Available                                              Solubility in H2O:   Insoluble

Appearance and Odor: Pale green powder solid, odorless.





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point (Method used): N/A

Extinguishing Media: Not combustible. Use extinguishing method suitable for surrounding fire.



Special Fire Fighting Procedures: Firefighters should wear NIOSH/MSHA approved self-contained breathing apparatus and full

protective clothing. Cool containers exposed to fire with water.



Unusual Fire & Explosion Hazard: Under fire conditions, toxic, corrosive fumes are emitted.

Hazardous Decomposition Materials (Under Fire Conditions): Hydrogen Fluoride, Fluorine.





V       HEALTH HAZARD INFORMATION



Potential Health Effects:



Eye (Acute): Non-irritating. May cause foreign body irritation only.

Skin (Acute): Non-irritating.

Inhalation (Acute): Low acute inhalation toxicity. May cause upper respiratory tract irritation.

Ingestion (Acute): Practically non-toxic.



Chronic Effects: This product does not contain any ingredient designated by IARC, NTP, ACGIH or OSHA as probable or sus-

pected human carcinogens.



WARNING STATEMENTS: Dusts in high concentrations may cause skin, eye and respiratory tract irritation.



Medical Conditions Possibly Aggravated by Exposure: Inhalation of product may aggravate existing chronic respiratory problems

such as asthma, emphysema or bronchitis.

EMERGENCY AND FIRST AID PROCEDURES:



EYES: Rinse particulate matter from eye. Seek medical attention if irritation develops or persists or if visual changes occur.

SKIN: Wash with plenty of soap and water. Seek medical attention if irritation develops or persists.

INHALATION: If respiratory irritation or distress occurs remove victim to fresh air. Seek medical attention if respiratory irritation

or distress continues.

INGESTION: If victim is conscious and alert, give 1-2 glasses of water to drink. Do not give anything by mouth to an unconscious

person. Seek medical attention. Do not leave victim unattended.

Notes to Physician: All treatments should be based on observed signs and symptoms of distress in the patient. Consideration should

be given to the possibility that overexposure to materials other than this product may have occurred. Treat symptomatically. No

specific antidote available.





VI       REACTIVITY DATA



Stability: Stable under normal handling and storage conditions described in Section IX.

Conditions to be Avoided: Dusting conditions, extreme heat.



Materials/Chemicals to be Avoided: Moisture and strong acids.

Hazardous Decomposition Products (Thermal Decomposition): Hydrogen fluoride, fluorine.

Hazardous Polymerization: Will not occur.





VII      SPILL OR LEAK PROCEDURES



Steps to be Taken in Case Material is Released or Spilled: Sweep or vacuum up and place in an appropriate closed container.

Clean up residual material by washing area with water.



Waste Disposal Method: Chemical additions, processing or otherwise altering this material may make the waste management

information presented in this MSDS incomplete, inaccurate or otherwise inappropriate. Please be advised that state and local require-

ments for waste disposal may be more restrictive or otherwise different from federal laws and regulations. Consult state and local

regulations regarding the proper disposal of this material.



Container Handling and Disposal: Any containers or equipment used should be decontaminated immediately after use.

EPA Hazardous Waste: No





VIII     SPECIAL PROTECTION INFORMATION



Ventilation: Local exhaust ventilation at the point of generation.



Respiratory Protection (Specify Type): NIOSH/MSHA approved air-purifying (half-mask / full-face) respirator with cartridges /

canister approved for use against dusts, mists and fumes.

Eye Protection: Safety glasses with side shields.



Skin Protection: Skin contact should be minimized through use of gloves and suitable long-sleeved clothing. Consideration must be

given both to durability as well as permeation resistance. Do not store, use, and/or consume foods, beverages, tobacco products, or

cosmetics in areas where this material is stored. Wash hands and face carefully before eating, drinking, using tobacco, applying

cosmetics, or using the toilet. Wash exposed skin promptly to remove accidental splashes of contact with this material.

IX      SPECIAL PRECAUTIONS



U S Dept of Transportation: Not regulated



Inventory Status:



United States (TSCA):              Yes

Canada (DSL):                      No

Europe (EINECS/ELINCS):            Yes

Australia (AICS):                  Yes

Japan (MITI):                      No

South Korea (KECL):                No



All functional components of this product are listed on the TSCA Inventory.



SARA Title III Hazardous: No



National Fire Protection Association Hazard Rating--NFPA (R): Health Hazard Rating - Moderate

National Paint and Coating Hazardous Materials Identification System--HMIS (R): Minimal



Disclaimer: The information herein is given in good faith but no warranty, expressed or implied, is made





Prepared by:     S. Dierks

Dated:           December 1995