Трисульфид диэрбия

Трисульфид диэрбия
Общие
Систематическое
наименование
Трисульфид диэрбия
Традиционные названия Сернистый эрбий
Хим. формула Er2S3
Физические свойства
Состояние кристаллы
Молярная масса 430,71 г/моль
Плотность 6,21 г/см³
Термические свойства
Температура
 • плавления ~1730 °C
Классификация
Рег. номер CAS 12159-66-9
PubChem
Рег. номер EINECS 235-289-4
SMILES
InChI
ChemSpider
Приведены данные для стандартных условий (25 °C, 100 кПа), если не указано иное.

Трисульфид диэрбия — бинарное неорганическое соединение эрбия и серы с формулой Er2S3, кристаллы.

Получение

  • Нагревание стехиометрических количеств чистых веществ в инертной атмосфере:

Физические свойства

Трисульфид диэрбия образует кристаллы нескольких модификаций:

Соединение конгруэнтно плавится при температуре ~1730 °С[3].


Примечания

  1. Диаграммы состояния двойных металлических систем / Под ред. Н. П. Лякишева. — М.: Металлургия, 1997. — Т. 2. — 1024 с. — ISBN 5-217-01569-1.
  2. B. Predel. Er-S (Erbium-Sulfur) // Landolt-Börnstein - Group IV Physical Chemistry. — 1995. — Т. 5e. — С. 1-2. — doi:10.1007/10474837_1222.
  3. Демчук Ж. А. Фазовые равновесия в системах Dy2S3 – EuS, EuS – Dy2S3 – Cu2S, энтальпии фазовых превращений. Структура соединения EuHoCuS3 // Диссертация на соискание ученой степени кандидата химических наук. — 2015. Архивировано 7 августа 2016 года.


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