A rare earth, metallic element. Praseodymium has an abundance on 6-9 ppm in the earth's crust. It is found in rare earth minerals, i.e. monazite, cerite and allonite. Praseodymium is a soft, yellowish metal that tarnishes readily in moist air to form green salts. Its salts are used as a colorants in glazes and glasses and as a components in phosphors and lasers. A zircon/praseodymium yellow is used as a stable yellow colorant up to 1280 C.
Synonyms and Related Terms
- Sensitive to air and moisture.
- Fisher Scientific: MSDS
Physical and Chemical Properties
|Composition||Pr (atomic no. 59)|
|Melting Point||930 C|
|Molecular Weight||atomic wt = 140.9077|
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 178
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7891
- Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992