Praseodymium | CAS No. 7440-10-0

Praseodymium

Basic Information

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CAS Number

7440-10-0

Molecular Formula

Molecular Weight

140.91 g/mol

Chemical Classification

Basic Chemical Raw Materials Inorganic Chemicals Acids

Basic Physical Properties

Melting Point

931 °C

Boiling Point

3520 °C

Density

6.71 g/mL at 25 °C

Water Solubility

Reacts with water.

SMILES

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[Pr]

InChI

InChI=1S/Pr

InChIKey

PUDIUYLPXJFUGB-UHFFFAOYSA-N

LogP

0.0

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

Safety Information

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GHS Hazard Pictograms

H250

Hazard Statement

H250 Catches fire spontaneously if exposed to air
Pyrophoric liquids; Pyrophoric solids

Hazard Class

Class 8 Class 8

Sensitiveness

Air & Moisture Sensitive

Synonyms & References

English

Praseodymium rod
Praseodymium ingot
Praseodymium powder
Praseodymium foil
Praeseodymium ICP Standard
Praseodymium
Praseodymium ICP Std.
Praseodymium Standard
(144pr)praseodymium
Praseodymium-141
UNII-NKN7EZA750
PR006100
PR000240
PR000250
PR006010
PR007920

MDL Number

MFCD00011174

FAQ

What are the physical and chemical properties of praseodymium (CAS: 7440-10-0)?

Praseodymium is a rare earth element with a bright silver color. It crystallizes in the hexagonal close-packed structure. Its atomic weight is approximately 140.91. Praseodymium is moderately soluble in water and reacts vigorously with dilute acids. It is used in alloys and magnets due to its magnetic properties.

How is praseodymium (CAS: 7440-10-0) typically synthesized?

Praseodymium is synthesized through the reduction of its oxide with lanthanum metal or hydrogen gas. Commonly, the ion exchange method and metallothermic reduction are used to prepare pure praseodymium. The process typically yields high purity samples with good selectivity and high yield.

What industries use praseodymium (CAS: 7440-10-0)?

Praseodymium is widely used in the production of glass and ceramic materials, as well as in the manufacturing of magnets, alloys, and catalytic converters. It is also used in the production of color phosphors for color television tubes and in the development of advanced optical and laser materials.

What precautions should be taken when handling praseodymium (CAS: 7440-10-0)?

Praseodymium should be handled in a well-ventilated area or a fume hood. Personal protective equipment such as gloves, safety goggles, and a lab coat is essential. Spills should be handled with care using appropriate absorbents, and the area should be ventilated to prevent inhalation of dust. Always refer to the Safety Data Sheet (SDS) for detailed handling instructions.