MSDS Material Safety Data Sheet


File Name: 15878-77-0.asp

                                            MATERIAL SAFETY DATA SHEET


Trade Name: Praseodymium Nitrate Formula: Pr(NO3)3 鈥? 6H2O
Synonym: Praseodymium Trinitrate; Nitric Acid, Praseodymium(3+) Salt, Hexahydrate


Praseodymium Nitrate CAS #: 15878-77-0 %: >99 OSHA Hazard: Yes
Nitric Acid CAS #: 7697-37-2 %: Trace OSHA Hazard: Yes


Physical Appearance: Green crystalline solid Odor: Odorless
pH: 3 at 20 wt% Specific Gravity: No data
H2O Solubility: Soluble Melting Point: No data
Vapor Pressure: No data Boiling Point: No data
Vapor Density: No data


Flash Point: N/A
Extinguishing Media: Carbon dioxide, dry chemical, foam, water fog.

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

Unusual Fire and Explosion Hazards: Under fire conditions and at high temperatures, as water evaporates, the residue can decom-
pose and support combustion.
Hazardous Decomposition Materials (Under Fire Conditions): Oxides of nitrogen


Warning Statements: SEVERE EYE IRRITANT

Potential Health Effects:

Acute Eye: Severe irritant. Can cause redness, irritation, tissue destruction.
Acute Skin: Skin absorption not likely. Slightly irritating. May cause redness.
Acute Inhalation: May cause wheezing, shortness of breath, upper respiratory tract irritation, chemical pneumonia.

Acute Ingestion: May cause nausea, vomiting, irritation, holes in esophagus, bluish-purple discoloration of skin.
Chronic Effects: This product does not contain any ingredient designated by IARC, NTP, ACGIH or OSHA as probable or sus-
pected human carcinogens.
Medical Conditions Generally Aggravated by Exposure: Inhalation of product may aggravate existing chronic respiratory prob-
lems such as asthma, emphysema or bronchitis. Skin contact may aggravate existing skin disease.

Toxicological Information:
Acute Eye Irritation: No data found for product Acute Skin Irritation: No data found for product
Acute Dermal Toxicity: No data found for product Acute Respiratory Irritation: No data found for product.
Acute Inhalation Toxicity: No data found for product. Acute Oral Toxicity: No data found for product.

Chronic Toxicity: This product does not contain any substances that are considered by OSHA, NTP, IARC, or ACGIH to be
鈥減robable鈥? or 鈥渟uspected鈥? human carcinogens. No additional test data found for product.


EYE: Hold eyelids open and flush with a steady, gentle stream of water for at least 15 minutes. Seek Medical Attention.
SKIN: In case of contact, immediately wash with plenty of soap and water for at least 5 minutes. Seek medical attention if irritation
develops or persists. Remove contamination clothing and shoes. Clean contamination clothing and shoed before re-use.
INHALATION: Remove victim from immediate source of exposure and assure that the victim is breathing. If breathing is difficult,
administer oxygen, if available. If victim is not breathing, administer CPR. Seek immediate medical attention.
INGESTION: If victim is conscious and alert, give 2-3 glasses of water to drink and do not induce vomiting. Seek immediate
medical attention. Do not leave victim unattended. To prevent aspiration of swallowed product, lay victim on side with head lower
than waist. Vomiting may occur spontaneously. If vomiting occurs and the victim is conscious, give water to further dilute the
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.


Stability: This material is stable under normal handling and storage conditions.
Conditions to Avoid: Dusting conditions
Material to Avoid: Strong bases

Decomposition Type: Thermal oxides of nitrogen
Hazardous Polymerization: Will not Occur.
Avoid the Following to Inhibit Hazardous Polymerization: N/A


Evacuation Procedures and Safety: Wear appropriate protective gear for the situation.
Containment of Spill: Follow procedure described below under Cleanup and Disposal of Spill.

Cleanup and Disposal of Spill: Sweep up and place in an appropriate closed container. Clean up residual material by washing area
with a 2-5% solution of soda ash.
Environmental and Regulatory Reporting: Spills may be reportable to the National Response Center (800-424-8802) and to state
an/or local agencies.

Handling and Storage: Avoid direct or prolonged contact with skin and eyes. Avoid breathing dusts.
Dry powders can build static electricity charges when subjected to the friction of conveying, mixing or sliding. Provide adequate
precautions, such as electrical grounding, or inert atmospheres when material is used in the presence of flammable materials to
prevent ignition. Store in tightly sealed containers. Avoid ordinary steel containers.

Introductory Remarks: These recommendations provide general guidance for handling this product. Because specific work
environments and material handling practices vary, safety procedures should be developed for each intended application. While
developing safe handling procedures, do not overlook the need to clean equipment and piping systems for maintenance and repairs.

Waste Disposal Considerations: Waste resulting from these procedures should be handled in accordance with State, Local and
Federal disposal considerations.

Exposure Guidelines: Assistance with selection, use and maintenance or worker protection equipment is generally available from
equipment manufacturers. Exposure limits represent regulated or recommended worker breathing zone concentrations measured by
validated sampling and analytical methods, meeting OSHA requirements. The following limits (ACGIH, OSHA and other) apply to
this material, where, if indicated, S=skin and C=ceiling limit:

Nitric Acid TWA STEL
5.2 mg/m3 10 mg/m3
ACGIH 2 ppm 4 ppm
10 mg/m3
OSHA 2 ppm
OSHA 5 mg/m 4 ppm
Particulates Not Otherwise Regulated Respirable Fraction
5 mg/m3
Particulates Not Otherwise Regulated Total Dust
15 mg/m3

Engineering Controls: Where engineering controls are indicated by use conditions or a potential for excessive exposure exists, the
following traditional exposure control techniques may be used to effectively minimize employee exposures: wet processing methods
to reduce dust generation. When respirators are required, select NIOSH/MSHA approved equipment based on actual or potential
airborne concentrations and in accordance with the latest OSHA standard (29 CFR 1910.134)/ or ANSI Z88.2 recommendations.
Under normal conditions, in the absence or other airborne contaminants, the following devices should provide protection from this
material up to the conditions specified by OSHA/ANSI: Air purifying (half mask/full face) respirator with cartridges/canister ap-
proved for use against dusts, mists and fumes.

Eye/Face Protection: Eye and face protection requirements will vary dependent upon work environment conditions and material
handling practices. Appropriate ANSI Z87 approved equipment should be selected for the particular use intended for this material.


Eye Protection: Eye contact should be prevented through use of chemical safety glasses with side shields or splash proof goggles.
An emergency eye wash must be readily accessible to the work area.

Skin Protection: Skin contact should be prevented through use of suitable protective clothing, gloves and footwear, selected with
regard for use conditions and exposure potential. Consideration must be given both to durability as well as permeation resistance.

Work Practice Controls: Personal hygiene is an important work practice exposure control measure and the following general
measures should be taken when working with or handling this material.

1. Do not store, use, and/or consume foods, beverages, tobacco products, or cosmetics in areas where this material is stored.
2. Wash hands and face carefully before eating, drinking, using tobacco, applying cosmetics, or using the toilet.
3. Wash exposed skin promptly to remove accidental splashed of contact with this material.

Ecological Information: No data found for this product.
Chemical Fate Information: No data found for this product

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 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

Transportation Information: The listed transportation classification does not address regulatory variations due to changes in
package size, mode of shipment or other regulatory descriptors.

US Department of Transportation DOT Shipping Name: Not regulated

Federal Regulations:

TSCA Inventory Status: The hydrated components of this product are listed on the TSCA Inventory under their parent anhydrous

SARA Title III Hazard Classes:
Fire Hazard: NoReactive Hazard: No
Release or Pressure: NoAcute Health Hazard: Yes
Chronic Health Hazard: No

SARA 313 Chemicals: Nitric Acid (Trace %)
SARA Extremely Hazardous Substances (EHS)/CERCLA Hazardous Substances: Nitric Acid: CERCLA/SARA RQ: 1000 lbs
SARA EHS TPQ: 1000 lbs
State Regulations: This product does not contain any components that are regulated under California Proposition 65.

National Fire Protection Association Hazard Ratings-NFPA(R):
3 Health Hazard Rating-Serious0 Flammability Rating-Minimal
0 Reactivity Rating-Minimal

National Paint and Coating Hazardous Materials Identification-System-HMIS(R):
3 Health Hazard Rating-Serious0 Reactivity Rating-Minimal
0 Flammability Rating-Minimal

Reasons for Revision: MSDS revised after tests showed product was not an oxidizer.
Disclaimer: The information herein is given in good faith but no warranty, expressed or implied, is made.

Issued By: S. Dierks
Issue Date: December 1996

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