Хлорид диспрозия(III)

Хлорид диспрозия(III)

Общие
Систематическое наименование	Хлорид диспрозия(III)
Традиционные названия	Хлористый диспрозий, трихлорид диспрозия
Хим. формула	DyCl₃
Физические свойства
Состояние	бесцветные кристаллы
Молярная масса	268,86 г/моль
Плотность	3,617; 3,67 г/см³
Термические свойства
Температура
• плавления	947; 654; 718 °C
• кипения	1530; 1627 °C
Мол. теплоёмк.	96,86 Дж/(моль·К)
Энтальпия
• образования	−983 кДж/моль
Химические свойства
Растворимость
• в воде	74,1 г/100 мл
Классификация
Рег. номер CAS	10025-74-8
PubChem	66207
Рег. номер EINECS	233-039-9
SMILES	Cl[Dy](Cl)Cl
InChI	InChI=1S/3ClH.Dy/h3*1H;/q;;;+3/p-3 BOXVSFHSLKQLNZ-UHFFFAOYSA-K
ChemSpider	59592
Приведены данные для стандартных условий (25 °C, 100 кПа), если не указано иное.
Медиафайлы на Викискладе

Хлорид диспрозия(III) — неорганическое соединение, соль диспрозия и соляной кислоты с формулой DyCl₃, бесцветные кристаллы, хорошо растворяется в воде, образует кристаллогидрат. Относится к группе химических соединений трихлоридов лантаноидов с формулой LnCl₃, где Ln обозначает металл-лантаноид.

Получение

Действие газообразного хлористого водорода на опилки диспрозия:

{\mathsf {2Dy+6HCl\ {\xrightarrow {700-900^{o}C}}\ 2DyCl_{3}+3H_{2}}}

Хлорирование металлического диспрозия:

{\mathsf {2Dy+3Cl_{2}\ {\xrightarrow {200^{o}C}}\ 2DyCl_{3}}}

Взаимодействие смеси хлора с тетрахлорметаном и оксалатом диспрозия(III).

Физические свойства

Хлорид диспрозия(III) образует бесцветные кристаллы моноклинной сингонии, пространственная группа C 2/m, параметры ячейки a = 0,691 нм, b = 1,197 нм, c = 0,640 нм, β = 111,2°, Z = 4.

Хорошо растворяется в воде.

Образует кристаллогидрат состава DyCl₃•6H₂O.

Химические свойства

При нагревании кристаллогидрата происходит частичный гидролиз:

{\mathsf {DyCl_{3}\cdot 6H_{2}O\ {\xrightarrow {T}}\ DyOCl+2HCl+5H_{2}O}}

Обезвоживание кристаллогидрата проводит при нагревании в вакууме в присутствии хлорида аммония для подавления гидролиза:

{\mathsf {DyCl_{3}\cdot 6H_{2}O+mNH_{4}Cl\ {\xrightarrow {400^{o}C}}\ DyCl_{3}+mNH_{3}\uparrow +mHCl\uparrow +6H_{2}O}}

Литература

Химическая энциклопедия / Редкол.: Кнунянц И.Л. и др.. — М.: Советская энциклопедия, 1990. — Т. 2. — 671 с. — ISBN 5-82270-035-5.
Справочник химика / Редкол.: Никольский Б.П. и др.. — 3-е изд., испр. — Л.: Химия, 1971. — Т. 2. — 1168 с.
Руководство по неорганическому синтезу: В 6-ти т. / Ред. Брауэр Г.. — М.: Мир, 1985. — Т. 4. — 447 с.

Соединения диспрозия

Это заготовка статьи о неорганическом веществе. Помогите Википедии, дополнив её.

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