Terbium(III) chloride

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| Verifiedfields = changed

| Watchedfields = changed

| verifiedrevid = 312039212

| Name = Terbium(III) chloride

| ImageFileL1 = UCl3 without caption.png

| ImageFileR1 = Cerium bromide (space filling) 2.png

| ImageFile2 = Terbium(III) chloride hexahydrate.jpg

| ImageName = Terbium(III) chloride

| OtherNames = terbium trichloride

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|??}}

| CASNo = 10042-88-3

| UNII_Ref = {{fdacite|changed|FDA}}

| UNII = 804HI855F8

| PubChem = 61458

| EINECS = 233-132-4

| InChI = 1S/3ClH.Tb/h3*1H;/q;;;+3/p-3

| SMILES = Cl[Tb](Cl)Cl

}}

|Section2={{Chembox Properties

| Formula = TbCl3

| MolarMass = 265.2834 g/mol

| Appearance = white powder

| Density = 4.35 g/cm3, solid

| Solubility = soluble

| MeltingPtC = 558

| BoilingPtC = 180 to 200

| BoilingPt_notes = (in HCl gas atmosphere)

}}

|Section3={{Chembox Structure

| Coordination = Tricapped trigonal prismatic
(nine-coordinate)

| CrystalStruct = hexagonal (UCl3 type), hP8

| SpaceGroup = P63/m, No. 176

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|Section7={{Chembox Hazards

| GHS_ref = GHS: [https://www.sigmaaldrich.com/product/ALDRICH/204560 Sigma-Alderich 204560]

| GHSPictograms = {{GHS07}}

| GHSSignalWord = warning

| HPhrases = {{HPhrases|H315 | H319}}

| PPhrases = {{PPhrases|P302 + P352 | P305 + P351 + P338}}

}}

|Section8={{Chembox Related

| OtherAnions = Terbium(III) oxide

| OtherCations = Gadolinium(III) chloride
Dysprosium(III) chloride

}}

}}

Terbium(III) chloride (TbCl3) is a chemical compound. In the solid state TbCl3 has the YCl3 layer structure.Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications {{ISBN|0-19-855370-6}} Terbium(III) chloride frequently forms a hexahydrate.

Preparation

The hexahydrate of terbium(III) chloride can be obtained by the reaction of terbium(III) oxide and hydrochloric acid:{{cite journal | doi = 10.1016/S1002-0721(08)60253-7 | author = XU Lijuan (许丽娟), LI Yanqiu (李艳秋), LI Xia (李 夏) | title = Synthesis, crystal structure and characterization of one-dimension complex constructed by terbium(III) and 2-iodobenzoate | journal = Journal of Rare Earths | volume = 27 | pages = 372–375 | year = 2009 | issue = 3| bibcode = 2009JREar..27..372X }}

:Tb2O3 + 6 HCl → 2 TbCl3 + 3 H2O

It can also be obtained by direct reaction of the elements:Webelements: [http://www.webelements.com/terbium/chemistry.html Terbium]

:2 Tb + 3 Cl2 → 2 TbCl3

Properties

Terbium(III) chloride is a white, hygroscopic powder.{{Cite book |title=CRC handbook of chemistry and physics: a ready-reference book of chemical and physical data |date=2006 |publisher=CRC, Taylor & Francis |isbn=978-0-8493-0487-3 |editor-last=Lide |editor-first=David R. |edition=87. ed., 2006-2007 |location=Boca Raton, Fla. |editor-last2=CRC Press}} It crystallizes in an orthorhombic plutonium(III) bromide crystal structure with space group Cmcm (No. 63).{{Cite book |last=Paetzold |first=Peter |url=https://books.google.com/books?id=rVuSsDZr5CAC&pg=PA204 |title=Chemie: Eine Einführung |date=2009-09-10 |publisher=Walter de Gruyter |isbn=978-3-11-021135-1 |language=de}}{{Cite book |title=Metals |publisher=Reidel |isbn=978-90-277-2385-7 |editor-last=Trotter |editor-first=J. |series=Structure reports A |date=30 November 1986 |location=Dordrecht}} It can form a complex Tb(gly)3Cl3·3H2O with glycine.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.

Applications

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.METALL RARE EARTH LIMITED: [http://www.metall.com.cn/tbcl.htm Terbium chloride]

Hazards

Terbium(III) chloride causes hyperemia of the iris.{{cite book| title = Ophthalmic toxicology| author = George C. Y. Chiou| edition = 2nd| publisher = CRC Press| year = 1999| isbn = 1-56032-722-7}}

Conditions/substances to avoid are: heat, acids and acid fumes.

References

{{reflist}}

{{Terbium compounds}}

{{Chlorides}}

{{Lanthanide halides}}

Category:Chlorides

Category:Lanthanide halides

Category:Terbium compounds