Ammonium Sulfide Solution

Public-database records for Ammonium Sulfide Solution (CAS 12135-76-1), reproduced here for independent cross-checking.

Safety classification and hazard statements

Regulatory listings

Physical description and handling notes

• Ammonium sulfide aqueous solution is a colorless to yellow liquid, with an odor of rotten eggs or ammonia. Can slowly react with water to generate flammable and toxic hydrogen sulfide gas. This reaction is much faster with acid. It may be irritating to skin, eyes and mucous membranes and may cause illness from skin absorption. It may burn and/or emit toxic fumes if heated to high temperatures.
• Liquid
• Colorless to yellow solid below -18 deg C; Decomposes above this temperature; [HSDB] Available as colorless to yellow solution with an odor of rotten eggs; [CAMEO] 40-44% aqueous solution is yellow liquid with a stench; [Alfa Aesar MSDS]
• Yellow-orange crystals.
• Compound is found as colorless to yellow crystals below -18 °C or as yellow-orange crystals
• Strong odor of rotten eggs and ammonia

Reported physical properties

How this substance is indexed

Documented uses

• Used to apply patina to bronze, for iron control in soda ash production, and to make ammonium thiosulfite; Also used in trace metal analysis, photographic developers, metallurgy, textiles, synthetic flavors, and cold wave sets; [HSDB] Used to make surfactants and photocopy paper; [EPA OHM/TADS]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Photographic Processing [Category: Other]
• Dressing Hair [Category: Other]
• Metal Extraction and Refining [Category: Industry]
• Applying metallic patinas [Category: Hobbies]

Names this substance appears under

AMMONIUM SULFIDE; 12135-76-1; Diammonium sulfide; Ammonium sulphide; Ammonium monosulfide; True ammonium sulfide; Ammonium sulfide, true; DIAMMONIUM SULPHIDE; 2H0Q32TDFZ; Ammonium sulfide ((nh4)2S); DTXSID60893218; RefChem:112208; DTXCID001323150; 235-223-4; diazanium;sulfide; MFCD00010892

Computed molecular descriptors

Database abstract

Ammonium Sulfide Solution · CAS 12135-76-1 · H8N2S. UNII 2H0Q32TDFZ. 沸点: 104 °F at 760 mmHg (USCG, 1999); 沸点: 104 °C @760 [mm Hg]; 闪点: 72 °F (USCG, 1999).

Source: PubChem / Wikidata; the batch COA governs where values differ.