CAS Number: 7440-10-0
Product Catalog

93-5942

Praseodymium › Praseodymium ingot (99.9% REO)

Stability: air sensitive, moisture sensitive

Safety: Hazardous

Physical Characteristics: melting point 935°C, boiling point 3127°C, density 6.782

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SECTION 1: Product Identification
Chemical Name:	Praseodymium ingot (99.9% REO)
Product Number:	93-5942
CAS Registry Number:	7440-10-0
Formula:	Pr (under oil)
EINECS Number:	231-120-3
Chemical Family:	metal or element
Synonym:	Rare earth metal; under white mineral oil, paraffin oil,

SECTION 2: Composition and Information on Ingredients
Ingredient	CAS Number	Percent	ACGIH (TWA)	OSHA (PEL)
Title Compound	7440-10-0	100	no data	no data
mineral oil	8042-47-5		no data	no data

SECTION 3: Hazards Identification
Emergency Overview:	Mineral oil may be harmful if swallowed, an irritant, and possible tumorigen.
Primary Routes of Exposure:	Ingestion, inhalation of any dust.
Eye Contact:	Oil, and dust, if present, may cause slight to mild irritation of the eyes.
Skin Contact:	Dust, if present, may cause slight to mild irritation of the skin.
Inhalation:	Inhalation of any oil free fine dust may be irritating to the nasal cavity, mucous membranes and respiratory tract.
Ingestion:	No information is available on the physiological effects of ingestion. Mineral oil may be harmful.
Acute Health Effects:	Oil free dust, if present, may be irritating to skin, eyes and respiratory tract.
Chronic Health Effects:	No information available on long-term chronic effects. Impurities in some mineral oils may be tumorigens.
NTP:	No
IARC:	No
OSHA:	No

SECTION 4: First Aid Measures
Eye Exposure:	Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure:	Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation:	(For dust) Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion:	If oil ingested, seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:	not applicable
Autoignition Temperature:	no data
Explosion Limits:	none
Extinguishing Medium:	Dry chemical or Class D metal fire agent.
Special Fire Fighting Procedures:	(As dust) If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus.
Hazardous Combustion and Decomposion Products:	If involved in a fire, burning metal may produce mildly irritating fumes of Praseodymium oxide or carbonate.
Unusual Fire or Explosion Hazards:	Ingot may ignite during grinding. Any dust may form explosive mixtures with air. Evolves hydrogen with hot water.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:	Not applicable; material is a metal ingot. Mineral oil is a slipping hazard.

SECTION 7: Handling and Storage
Handling and Storage:	Store under mineral oil. Handle under an inert atmosphere of argon.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:	Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection:	Wear protective clothing and gloves.
Ventilation:	If converted to a fine oil free dust, handle the material in an efficient fume hood.
Respirator:	If the material is converted to an oil free fine dust and ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection:	No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:	gray ingot (packed in petrolatum)
Molecular Weight:	140.9
Melting Point:	935°C
Boiling Point:	3127°C
Vapor Pressure:	no data
Specific Gravity:	6.782
Odor:	none
Solubility in Water:	reacts with water

SECTION 10: Stability and Reactivity
Stability:	air sensitive, moisture sensitive solid
Hazardous Polymerization:	no hazardous polymerization
Conditions to Avoid:	Contact with hot water. Any oil free fine dust mixed with air.
Incompatibility:	Water, alcohols, oxidizers, oxygen, halogens, halocarbons, mineral acids.
Decomposition Products:	None. For Mineral oil: carbon dioxide, carbon monoxide, organic fumes.

SECTION 11: Toxicological Information
RTECS Data:	No information available in the RTECS files.
Carcinogenic Effects:	Mineral oil : Possible Tumorigen
Mutagenic Effects:	No data available
Tetratogenic Effects:	No data available

SECTION 12: Ecological Information
Ecological Information:	No information available

SECTION 13: Disposal Considerations
Disposal:	Dispose of according to local, state and federal regulations.

SECTION 14: Transportation
Shipping Name (CFR):	Water-reactive solid, N.O.S.
Hazard Class (CFR):	4.3
Additional Hazard Class (CFR):	NA
Packaging Group (CFR):	III
UN ID Number (CFR):	UN# 2813
Shipping Name (IATA):	Water-reactive solid, N.O.S.
Hazard Class (IATA):	4.3
Additional Hazard Class (IATA):	NA
Packaging Group (IATA):	III
UN ID Number (IATA):	UN# 2813

SECTION 15: Regulatory Information
TSCA:	Listed in the TSCA inventory
SARA (Title 313):	Title compound not listed
Second Ingredient:	mineral oil listed in TSCA
Third Ingredient:	none

SECTION 16: Other Information
Disclaimer:	The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date:	11/21/2000
Revision Date:	8/05/2011