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Key Documents

A1952

Sigma-Aldrich

Ammonio solfuro

20% in H2O

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About This Item

Formula condensata:
(NH4)2S
Numero CAS:
Peso molecolare:
68.14
Numero MDL:
Codice UNSPSC:
12352300
eCl@ss:
38030205
ID PubChem:
NACRES:
NA.21

Forma fisica

liquid

Concentrazione

20% in H2O
20.0-24.0% (titration by Na2S2O3)

Temperatura di conservazione

room temp

Stringa SMILE

N.N.S

InChI

1S/2H3N.H2S/h2*1H3;1H2
UXXGWUQNRMPNKH-UHFFFAOYSA-N

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Descrizione generale

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.

Applicazioni

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

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Burdock GA.
Encyclopedia of Food and Color Additives, 1, 146-146 (1997)
Ammonium sulfide passivation of Type-II InAs/GaSb superlattice photodiodes.
Gin A, et al.
Applied Physics Letters, 84(12), 2037-2039 (2004)
Mild method for the conversion of amides to thioamides.
Charette AB and Grenon M.
The Journal of Organic Chemistry, 68(14), 5792-5794 (2003)
Carpenter MS, et al.
J. Vac. Sci. Technol. B, 7(4), 845-850 (1989)
Douglas B Murray et al.
Experimental cell research, 287(1), 10-15 (2003-06-12)
Cultures of Saccharomyces cerevisiae grown continuously produce an autonomous oscillation in many metabolic outputs. The most conveniently measured variable, i.e., dissolved oxygen concentration, oscillates with a period of 40-55 min. Previously we have identified two compounds capable of resetting phase

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