Английская Википедия:Holmium(III) fluoride

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Chembox Holmium(III) fluoride is an inorganic compound with a chemical formula of HoF3.

Preparation

Holmium(III) fluoride can be produced by reacting holmium oxide and ammonium fluoride, then crystallising it from the ammonium salt formed in solution:[1]

Шаблон:Chem2

It can also be prepared by directly reacting holmium with fluorine:[2]

Шаблон:Chem2

Properties

Holmium(III) fluoride is a yellowish powder that is insoluble in water.[3] It has an orthorhombic crystal system (corresponding to β-YF3[4]) with the space group Pnma (space group no. 62).[5] However, there is also a trigonal low-temperature form of the lanthanum(III) fluoride type.[1]

References

Шаблон:Reflist Шаблон:Holmium compounds Шаблон:Fluorides Шаблон:Lanthanide halides