Basic information
- CAS
12124-99-1- Standard SMILES
[NH4+].[SH-]- InChIKey
HIVLDXAAFGCOFU-UHFFFAOYSA-N- Molecular formula
- H4N.HS
- Average molar mass
- 51.11 g/mol
- Monoisotopic mass
- 51.01427034
Overview
Ammonium hydrosulfide, solution is a clear, yellowish liquid. Kept basic with NaOH, as acid will release hydrogen sulfide gas. Technical grade is 40-44%. Used in photography, textiles, synthetic flavors, coloring brasses, bronzes, and iron control.
Names & identifiers
- Preferred name
- Ammonium bisulfide
- IUPAC
- azanium sulfanide
- English name
- ammonium hydrogensulphide
- Molecular formula
- H5NS
- Molecular weight
- 51.11
Names & synonyms
Ammonium bisulfideAmmonium hydrosulfideAmmonium sulfhydrateAmmonium hydrogensulphideAmmonium hydrogen sulfideAmmonium mercaptan12124-99-1Monoammonium sulfideSirnik amonnyAmmonium sulfide ((NH4)(SH))Sirnik amonny [Czech]EINECS 235-184-3
Show more names
azanium,sulfanideAMMONIUMHYDROSULPHIDE
A824D6LXMBAMMONIUM BISULFIDE [MI]DTXSID20894064RefChem:557670DTXCID301324107235-184-3azanium;sulfanideSchwefelammonium
Database identifiers
- CAS
12124-99-1- PubChem CID
- 25515
- DTXSID
DTXSID20894064- UNII
- A824D6LXMB
- EC Number
- 235-184-3
Properties
Computed structural properties
- Topological polar surface area
- 2 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 0
- Heavy atoms
- 2
- Formal charge
- 0
- Complexity
- 0
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Sulfur Compounds
SolubilitySolubility in water, g/100ml: 128.1
Decompositionroom temperature. This produces toxic and corrosive gases including ammonia and hydrogen sulfide. Reacts with acids. This produces hydrogen sulfide and sulfur oxides. Reacts violently with oxidants. This generates fire or explosion hazard.
Vapor Pressure
390.0 [mmHg]
Vapor pressure, kPa at 22 °C: 52
Physical Description
Ammonium hydrosulfide, solution is a clear, yellowish liquid. Kept basic with NaOH, as acid will release hydrogen sulfide gas. Technical grade is 40-44%. Used in photography, textiles, synthetic flavors, coloring brasses, bronzes, and iron control.
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]
HYGROSCOPIC WHITE-TO-YELLOW CRYSTALS WITH CHARACTERISTIC ODOUR.
Physicochemical properties
- Melting point
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H312 (31.3%): Harmful in contact with skin [Warning Acute toxicity, dermal]
P260, P264, P273, P280, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P362+P364, P363, P391, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 115 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
H301: Toxic if swallowed [Danger Acute toxicity, oral]
Hazard information
Regulatory Information
Chemical: Ammonium sulfide, (NH4)(SH)
REACH registered substance: Ammonium hydrogensulphide (EC: 235-184-3)
Restricted substance: Ammonium hydrogen sulphide
Ammonium hydrosulfide: Does not have an individual approval but may be used under an appropriate group standard
Other Safety InformationIMAP assessments - Soluble Sulfide Salts: Human health tier II assessment
DOT LabelCorrosive Poison Flammable Liquid
Fire Hazards
Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]:
Combustible. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.
Health HazardsExcerpt from ERG Guide 132 [Flammable Liquids - Corrosive]:
Hazards Summary
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.
Chemistry & industry
Uses & manufacturing
Uses
Used in lubricants; [Merck Index] Used in photography, textiles, synthetic flavors, for coloring brasses and bronzes, and for iron control (soda ash production); [CAMEO]
Photographic Processing [Category: Other]
Applying metallic patinas [Category: Hobbies]
General Manufacturing InformationAmmonium sulfide ((NH4)(SH)): ACTIVE
Applications
UsesIn lubricants.
General DescriptionClear, yellowish liquid. Kept basic with NaOH, as acid will release hydrogen sulfide gas. Technical grade is 40-44%. Used in photography, textiles, synthetic flavors, coloring brasses, bronzes, and iron control.
Preparation methods
PreparationNH4HS is prepared by the reaction of an equimolar amount of ammonia and hydrogen sulfide:2NH2HS + 2S → (NH4)2S3 + H2S.
Suppliers4 total
BOC Sciences[email protected]
Shaanxi Didu New Materials Co. Ltd+86-86-17392712779 +86-13289823923 · [email protected]
湖北信康医药化工有限公司027-027-59308705 18871579363 · [email protected]
XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.+8618950047208 · [email protected]
Additional notes
The true sulfide is sta- ble only in the absence of moisture and below 0C. The ammonium sulfide of commerce is largely ammonium bisulfide or hydrosulfide, NH 4 HS.
Related reactions
0 records
No reaction records under the current filter.
Compound notes
Loading…