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515809

Sigma-Aldrich

Sulfure d'ammonium solution

40-48 wt. % in H2O

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441,00 $
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100 ML
124,00 $
500 ML
441,00 $
4 X 100 ML
503,00 $

About This Item

Formule linéaire :
(NH4)2S
Numéro CAS:
12135-76-1
Poids moléculaire :
68.14
Numéro MDL:
MFCD00010892
Code UNSPSC :
12352300
eCl@ss :
38030205
ID de substance PubChem :
329757716
Nomenclature NACRES :
NA.21

124,00 $

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Qualité

for analytical purposes

Niveau de qualité

200

Forme

liquid

Concentration

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

Indice de réfraction

n20/D 1.467

pb

40 °C

Densité

1 g/mL at 25 °C

Chaîne SMILES 

N.N.S

InChI

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

Clé InChI

UXXGWUQNRMPNKH-UHFFFAOYSA-N

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Catégories apparentées

Description générale

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.[1] 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).[2] Its potential as an alternative to hydrogen sulfide for the transformation of activated amides to thioamides by thiolysis has been investigated.[3] The reaction of ammonium sulfide with 3-hydroxy-2-butanone over a range of temperature has been reported to form various flavor compounds.[4]

Application

Ammonium sulfide solution may be used to enhance the performance of type-II InAs/GaSb super lattice photodiodes by surface passivation technique.[5]

Pictogrammes

FlameCorrosionEnvironment
GHS02,GHS05,GHS09

Mention d'avertissement

Danger

Mentions de danger

H225,H314,H400

Classification des risques

Aquatic Acute 1 - Flam. Liq. 2 - Skin Corr. 1B

Risques supp

EUH031

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

68.0 °F - closed cup

Point d'éclair (°C)

20 °C - closed cup

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Certificats d'analyse (COA)

Lot/Batch Number
0000411751
0000411751
0000307958
0000307957
0000307958

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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