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Praseodymium hexaboride

Names
Other names Praseodymium boride
Identifiers
CAS Number	12008-27-4
3D model (JSmol)	Interactive image
ChemSpider	62852859
ECHA InfoCard	100.031.382
EC Number	234-534-2
PubChem CID	170843463
CompTox Dashboard (EPA)	DTXSID601311387
InChI InChI=1S/6B.PrKey: QHGDJAMSTQXPDI-UHFFFAOYSA-N
SMILES ......
Properties
Chemical formula	PrB6
Molar mass	205.77 g/mol
Appearance	black crystals
Density	4.84 g/cm
Melting point	2610 °C
Structure
Crystal structure	Cubic
Space group	Pm3m ; Oh
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is  ?) Infobox references

Praseodymium hexaboride is a binary inorganic compound of praseodymium and boron with the formula PrB₆. It forms black crystals that are insoluble in water.

Preparation

Praseodymium hexaboride can be prepared from the reaction of stoichiometric quantities of praseodymium and boron:

Pr + 6B → PrB₆

Properties

Praseodymium hexaboride forms black crystals of the cubic crystal system, with space group Pm3m, cell parameters a = 0.4129 nm, Z = 1, and structure isotypical with calcium hexaboride. The compound melts congruently at 2610 °C. At temperatures below 7 K, a magnetic transition to an antiferromagnetic state occurs in the compound. It does not dissolve in water.

Uses

Praseodymium hexaboride is used as a component of alloys for cathodes of high-power electronic devices.

References

1. Справочник химика. Vol. 2 (3-е изд., испр ed.). Л.: Химия. 1971. {{cite book}}: Unknown parameter |agency= ignored (help)
2. Справочник химика. Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия. 1966. {{cite book}}: Unknown parameter |agency= ignored (help)
3. Руководство по неорганическому синтезу: В 6-ти т. Vol. 4. М.: Мир. 1985. {{cite book}}: Unknown parameter |agency= ignored (help)
4. М.А. Анисимов, А.В. Кузнецов, А.В. Богач, В.В. Глушков, С.В. Демишев, Н.А. Самарин, Н.Ю. Шицевалова, А.В. Левченко, В.Б. Филипов, Н.Е. Случанко (2012). "Подавление спонтанной намагниченности в парамагнитной фазе PrB₆" (PDF) (Материалы Международной научно-технической конференции ed.): 160–163. Archived from the original (PDF) on 2015-04-12. {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: multiple names: authors list (link)
5. H. Hacker Jr., Y. Shimada, K. S. Chung (1971). "Magnetic properties of CeB₆, PrB₆, EuB₆, and GdB₆". 4 (2) (Physica Status Solidi A ed.): 459–465. doi:10.1002/pssa.2210040221. {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: multiple names: authors list (link)
6. М.А. Анисимов, А.В. Богач, В.В. Глушков, С.В. Демишев, Н.А. Самарин, В.Б. Филипов, Н.Ю. Шицевалова, Н.Е. Случанко (2010). "Новая магнитная фаза в гексабориде празеодима" (PDF). 2 (1) (Труды МФТИ. — . — Том , № (5) ed.): 9–12. Archived from the original (PDF) on 2014-07-19. {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: multiple names: authors list (link)

• Praseodymium(III) compounds
• Borides