Ammonium bisulfide

Agent Name
Ammonium bisulfide
CAS Number
Major Category
Other Classes
Ammonium bisulfide formula graphical representation
Ammonium hydrogen sulfide; Ammonium hydrosulfide; Ammonium mercaptan; Ammonium sulfhydrate; Ammonium sulfide; Monoammonium sulfide; Sirnik amonny [Czech]; Ammonium hydrogensulphide; [ChemIDplus] UN2683
Sulfur Compounds
White to yellow hygroscopic solid; [ICSC] Decomposes when moisture or >0 deg C; [Hawley] Technical grade is 40-44% and kept basic with sodium hydroxide; [CAMEO] Solution has strong odor of rotten eggs and ammonia; [CHRIS]
Used in lubricants; [Merck Index] Used in photography, textiles, synthetic flavors, for coloring brasses and bronzes, and for iron control (soda ash production); [CAMEO]
Crystals decompose at room temperature forming hydrogen sulfide (may be fatal) and ammonia; A severe skin irritant; [Merck Index] A severe skin, eye, and respiratory tract irritant; Can be absorbed through skin; [ICSC] Produces hydrogen sulfide on mixing with water; A reducing agent; [CAMEO] Aqueous solution: Causes severe eye burns and severe skin irritation; Inhalation of 500 ppm for 30 minutes causes headache, dizziness, and bronchial pneumonia; 600 ppm for 30 minutes can be fatal; Can be absorbed through skin resulting in hydrogen sulfide poisoning; [CHRIS] Causes mydriasis, dyspnea, and respiratory stimulation in lethal-dose animal studies (dermal, intraperitoneal, intravenous, and oral routes); [RTECS] See "Hydrogen sulfide."
Biomedical References

Exposure Assessment

Vapor Pressure
390 mm Hg
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Ammonium sulfide, solution."

Adverse Effects

Skin burns
Other Poison
Chemical Asphyxiant

Diseases, Processes, and Activities Linked to This Agent


Occupational diseases associated with exposure to this agent:


Industrial Processes with risk of exposure:


Activities with risk of exposure: