Сульфид германия(IV)

Сульфид германия​(IV)​
Изображение молекулярной модели
Общие
Систематическое
наименование
Сульфид германия​(IV)​; дисульфид германия
Традиционные названия Сернистый германий
Хим. формула GeS2
Физические свойства
Состояние белые кристаллы
Молярная масса 136,74 г/моль
Плотность 2,94; 3,03 г/см³
Термические свойства
Температура
 • плавления 800; 825; 840 °C
 • кипения 1530 °C
Мол. теплоёмк. 50 Дж/(моль·К)
Энтальпия
 • образования -150,06 кДж/моль
Химические свойства
Растворимость
 • в воде 0,45 г/100 мл
 • в жидком аммиаке 3,112-32,9 г/100 мл
Классификация
Рег. номер CAS 12025-34-2
PubChem
Рег. номер EINECS 234-705-1
SMILES
InChI
ChemSpider
Приведены данные для стандартных условий (25 °C, 100 кПа), если не указано иное.
Логотип Викисклада Медиафайлы на Викискладе

Сульфид германия(IV) — бинарное неорганическое соединение металла германия и серы с формулой GeS2, белые кристаллы, плохо растворимые в воде.

Получение

  • Сплавление германия и серы:

Физические свойства

Сульфид германия(IV) образует белые кристаллы ромбической сингонии, пространственная группа F dd2, параметры ячейки a = 1,166 нм, b = 2,234 нм, c = 0,686 нм, Z = 24.

Плохо растворим в воде.

Химические свойства

  • Медленно гидролизуется водой (быстрее кипящей):
  • Реагирует с кислотами:
  • Реагирует с щелочами:
  • Восстанавливается водородом:
  • и металлическим германием в инертной атмосфере:
  • Переводится в раствор сульфидами щелочных металлов:


Литература

  • Химическая энциклопедия / Редкол.: Кнунянц И.Л. и др.. — М.: Советская энциклопедия, 1988. — Т. 1. — 623 с.
  • Справочник химика / Редкол.: Никольский Б.П. и др.. — 2-е изд., испр. — М.Л.: Химия, 1966. — Т. 1. — 1072 с.
  • Справочник химика / Редкол.: Никольский Б.П. и др.. — 3-е изд., испр. — Л.: Химия, 1971. — Т. 2. — 1168 с.
  • Лидин Р.А. и др. Химические свойства неорганических веществ: Учеб. пособие для вузов. — 3-е изд., испр. — М.: Химия, 2000. — 480 с. — ISBN 5-7245-1163-0.
  • Рипан Р., Четяну И. Неорганическая химия. Химия металлов. — М.: Мир, 1971. — Т. 1. — 561 с.
Классы соединений германия

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