ammonium sulfide

ammonium sulfide

[ə′mōn·yəm ′səl‚fīd]
(inorganic chemistry)
(NH4)2S Yellow crystals, stable only when dry and below 0°C; decomposes on melting; soluble in water and alcohol; used in photographic developers and for coloring brasses and bronzes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
"Many powders, including sodium chloride and ammonium sulfide, can harden into a solid block that cannot be dispensed into process liquids without deagglomeration, " said Scott Patterson, ILC Dover vice president of commercial sales.
Ferric sulfide is black, so pouring the ferric chloride solution into a glass treated with ammonium sulfide resulted in ink.
After 10 minutes, the slides were dipped twice in deionized water, developed in 1% yellow ammonium sulfide for 1 minute, and then dipped twice again in deionized water.
Ampacet found that many typical pigments turn black when exposed to ammonium sulfide commonly found in soil.