Nomenclature
CAS number: 12135-76-1
Ammonium sulfide ((NH
4)
2S); true ammonium sulfide.
H
8N
2S; mol wt 68.14.
H 11.83%, N 41.11%, S 47.06%.
(NH
4)
2S.
Description and references
Prepn: Gmelins, Ammonium (8th ed.) 23, p 246 (1936). Prepn of high purity soln:
Johnson et al., Chemist-Analyst 53, 46 (1964).
Properties
Forms crystals below 18°; at high temps it dec
into NH4HS, NH3, polysulfides, etc. Corrosive. Poisonous. Flammable.Use
To apply patina to bronze, in photographic developers,
in textile manufacture, in trace metal analysis.