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Merck

515809

Ammonium sulfide solution

40-48 wt. % in H2O

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About This Item

Linear Formula:
(NH4)2S
CAS Number:
12135-76-1
Molecular Weight:
68.14
UNSPSC Code:
12352300
eCl@ss:
38030205
PubChem Substance ID:
329757716
NACRES:
NA.21
MDL number:
MFCD00010892

Key Documents

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SMILES string

N.N.S

InChI

1S/2H3N.H2S/h2*1H3;1H2

InChI key

UXXGWUQNRMPNKH-UHFFFAOYSA-N

Quality Level

200

concentration

40-48 wt. % in H2O, 40.0-48.0% (titration by Na2S2O3)

refractive index

n20/D 1.467

bp

40 °C

density

1 g/mL at 25 °C

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General description

Ammonium sulfide solution (aqueous ammonium sulfide) is a 40-48wt.% 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.

signalword

Danger

supp_hazards

EUH031

Storage Class

3 - Flammable liquids

pictograms

CorrosionEnvironment
GHS05,GHS09

hcodes

H314,H400

Hazard Classifications

Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

12135-76-1

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
0000494673
0000494681
0000494681
0000494673
0000411751

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Ammonium sulfide passivation of Type-II InAs/GaSb superlattice photodiodes.
Gin A, et al.
Applied Physics Letters, 84(12), 2037-2039 (2004)
Carpenter MS, et al.
J. Vac. Sci. Technol. B, 7(4), 845-850 (1989)
Mild method for the conversion of amides to thioamides.
Charette AB and Grenon M.
The Journal of Organic Chemistry, 68(14), 5792-5794 (2003)
Burdock GA.
Encyclopedia of Food and Color Additives, 1, 142-142 (1997)
[Photographic models in the study and valuation of the silver reactions in histology. II. Optical density variation in enlarging exposure scale under the action of the ammonium sulphide on silver (author's transl)].
M Vialli et al.
Mikroskopie, 36(3-4), 117-127 (1980-06-01)
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