515809
Ammonium sulfide solution
40-48 wt. % in H2O
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About This Item
Linear Formula:
(NH4)2S
CAS Number:
Molecular Weight:
68.14
UNSPSC Code:
12352300
eCl@ss:
38030205
PubChem Substance ID:
NACRES:
NA.21
MDL number:
SMILES string
N.N.S
InChI
1S/2H3N.H2S/h2*1H3;1H2
InChI key
UXXGWUQNRMPNKH-UHFFFAOYSA-N
Quality Level
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
Storage Class
3 - Flammable liquids
hcodes
Hazard Classifications
Aquatic Acute 1 - Eye Dam. 1 - Skin Corr. 1B
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
危险化学品
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Carpenter MS, et al.
J. Vac. Sci. Technol. B, 7(4), 845-850 (1989)
Burdock GA.
Encyclopedia of Food and Color Additives, 1, 142-142 (1997)
Qiu-li Yuan et al.
Guang pu xue yu guang pu fen xi = Guang pu, 25(6), 971-974 (2005-10-06)
Polyvinylpyrrolidone (PVP)-modified CdS nanorods were prepared by a hydrothermal reaction of CdCl2 2.5H2O and (NH4)2S with 10 wt% ethylenediamine aqueous solution as solvent and 1.0 wt% PVP as additives. The obtained products were characterized by means of XRD, TEM, IR
A Ottolenghi et al.
The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society, 14(12), 907-914 (1966-12-01)
A method has been developed for the histochemical demonstration of phospholipase B (lysolecithinase) of rat tissues. The enzyme attacks lysolecithin with liberation of 1 mole of glycerylphosphorylcholine and 1 mole of fatty acid. The recommended procedure involves use of 6-10
C J Richardson et al.
Clinica chimica acta; international journal of clinical chemistry, 293(1-2), 115-125 (2000-03-04)
Hydrogen sulphide is produced in the human large intestine by the bacterial reduction of dietary inorganic sulphate and sulphite and by fermentation of sulphur amino acids. Sulphide may damage the colonic epithelium and has been implicated in the pathogenesis of
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