Ammonium sulfide

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Ammonium sulfide
IUPAC name Ammonium sulfide
Other names Diammonium sulfide
Identifiers
CAS number 12135-76-1
PubChem 25519
RTECS number BS4900000
SMILES [S-2].[NH4+].[NH4+]
Properties
Molecular formula (NH4)2S
Molar mass 68.154 g/mol
Appearance yellow crystals (> -18 °C) [1]
hygroscopic
Density 0.997 g/cm3
Melting point

decomposes at ambient temperatures

Solubility in water 128.1 g/100 mL
Solubility soluble in alcohol
very soluble in liquid ammonia
Hazards
MSDS External MSDS
EU classification Corrosive (C)
Dangerous for the environment (N)
EU Index 016-008-00-2
NFPA 704

NFPA 704.svg

3
3
0
 
R-phrases R31, R34, R50
S-phrases (S1/2), S26, S45, S61
Flash point 32.22 °C
Related compounds
Other anions Ammonium hydroxide
Other cations Sodium sulfide
Potassium sulfide
Related compounds Ammonium hydrosulfide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Ammonium sulfide, also known as the "stink bomb" is made up of a solution of ammonium sulfide in water, sealed inside a glass ampoule (a small bottle-like container used to store a liquid securely). When the ampoule is broken, ammonia and hydrogen sulfide gases are released from the solution. These chemicals have a very strong and unpleasant smell.

Ammonium sulfide is a very toxic chemical. It is also explosive and highly flammable. It is added to cigarettes.

References[change | change source]

  1. Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8