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Terbium(III) chloride (Tb Cl 3 ) is a chemical compound . In the solid state TbCl3 has the YCl3 layer structure.[2] Terbium(III) chloride frequently forms a hexahydrate.
Preparation
[ edit ]
The hexahydrate of terbium(III) chloride can be obtained by the reaction of terbium(III) oxide and hydrochloric acid :[3]
Tb 2 O 3 + 6 HCl → 2 TbCl3 + 3 H2 O
It can also be obtained by direct reaction of the elements:[4]
2 Tb + 3 Cl2 → 2 TbCl3
Properties
[ edit ]
Terbium(III) chloride is a white, hygroscopic powder.[5] It crystallizes in an orthorhombic plutonium(III) bromide crystal structure with space group Cmcm (No. 63).[6] [7] It can form a complex Tb(gly)3 Cl 3 ·3H2 O with glycine.[8]
Applications
[ edit ]
The hexahydrate plays an important role as an activator of green phosphors in color TV tubes and is also used in specialty lasers and as a dopant in solid-state devices .[9]
Hazards
[ edit ]
Terbium(III) chloride causes hyperemia of the iris .[10]
Conditions/substances to avoid are: heat , acids and acid fumes.
References
[ edit ]
^ Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications ISBN 0-19-855370-6
^ XU Lijuan (许丽娟), LI Yanqiu (李艳秋), LI Xia (李 夏) (2009). "Synthesis, crystal structure and characterization of one-dimension complex constructed by terbium(III) and 2-iodobenzoate". Journal of Rare Earths . 27 (3 ): 372–375. Bibcode :2009JREar..27..372X . doi :10.1016/S1002-0721(08 )60253-7 . {{cite journal }}
: CS1 maint: multiple names: authors list (link )
^ Webelements: Terbium
^ Lide, David R.; CRC Press, eds. (2006). CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data (87. ed., 2006-2007 ed.). Boca Raton, Fla.: CRC, Taylor & Francis. ISBN 978-0-8493-0487-3 .
^ Paetzold, Peter (2009-09-10). Chemie: Eine Einführung (in German). Walter de Gruyter. ISBN 978-3-11-021135-1 .
^ Trotter, J., ed. (30 November 1986). Metals . Structure reports A. Dordrecht: Reidel. ISBN 978-90-277-2385-7 .
^ 郑平, 陈文生, 张洪权,等. 量热法测定氯化铽甘氨酸配合物及其配离子的标准生成焓[J ]. 湖北大学学报(自科版), 2011, 33(3 ):270-274.
^ METALL RARE EARTH LIMITED: Terbium chloride
^ George C. Y. Chiou (1999). Ophthalmic toxicology (2nd ed.). CRC Press. ISBN 1-56032-722-7 .
t
e
Terbium(III)
Terbium(III,IV)
Terbium(IV )
t
e
Salts and covalent derivatives of the
chloride ion
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Terbium(III)_chloride&oldid=1228420209 "
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