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A1952 Sigma-Aldrich

Ammonium sulfide solution

20% in H2O

  • CAS Number 12135-76-1

  • Linear Formula (NH4)2S

  • Molecular Weight 68.14

  •  MDL number MFCD00010892

  •  eCl@ss 38030205

  •  PubChem Substance ID 329770726

  •  NACRES NA.21

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Properties

Related Categories Ammonium Salts, Chemical Synthesis, Essential Chemicals, Inorganic Salts, Research Essentials,
Quality Level   100
assay   20.0-24.0% (by Na2S2O3, titration)
form   liquid
concentration   20% in H2O
storage temp.   room temp
SMILES string   N.N.S
InChI   1S/2H3N.H2S/h2*1H3;1H2
InChI key   UXXGWUQNRMPNKH-UHFFFAOYSA-N

Description

General description

Ammonium sulfide solution (aqueous ammonium sulfide) is a 20% solution in water. Ammonium sulfide is an inorganic salt with a sulfurous odor, which is commonly used in the food industry as a flavoring agent. The influence of ammonium sulfide treatment on (100)GaAs (gallium arsenide) surfaces has been studied by X-ray photoelectron spectroscopy (XPS) and reflection high-energy electron diffraction (RHEED). Its potential as an alternative to hydrogen sulfide for the transformation of activated amides to thioamides by thiolysis has been investigated. The reaction of ammonium sulfide with 3-hydroxy-2-butanone over a range of temperature has been reported to form various flavor compounds.

Application

Ammonium sulfide solution may be used to enhance the performance of type-II InAs/GaSb super lattice photodiodes by surface passivation technique.

Packaging

25, 500 mL in glass bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
EUH031
RIDADR 
UN 2683 6.1(3)(8) / PGII
WGK Germany 
WGK 2
Flash Point(F) 
89.6 °F - closed cup
Flash Point(C) 
32 °C - closed cup

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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