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Properties of substance:

ammonium sulfide

Group of substances:

inorganic

Physical appearance:

colorless crystals

Empirical formula (Hill's system for organic substances):

H8N2S

Structural formula as text:

(NH4)2S

Molar/atomic mass: 68.14

Decomposition temperature (°C):

0

Solubility (g/100 g of solvent):

ammonia liquid : 120 (25°C) [Ref.]
ethanol: soluble [Ref.]
water: very soluble (20°C) [Ref.]

Hygroscopic:

yes

Reactions:

  1. [Ref.1]
    3(NH4)2S + Sb2S3 → 2(NH4)3SbS3

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-167 (s)

References:

  1. Patnaik P. Handbook of inorganic chemicals. - McGraw-Hill, 2003. - pp. 45-46
  2. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1120
  3. Коростелев П.П. Реактивы для технического анализа. - М.: Металлургия, 1988. - pp. 21-22 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 54 [Russian]
  5. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 44 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru