515809

Ammonium sulfide solution

40-48 wt. % in H₂O

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

Properties

• form: liquid
• 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
• 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 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.

Safety Information

• Pictograms: GHS02,GHS05,GHS09
• Signal Word: Danger
• Hazard Statements: H225,H314,H400
• Precautionary Statements: P210 - P260 - P280 - P305 + P351 + P338 - P370 + P378 - P403 + P235
• Hazard Classifications: Aquatic Acute 1 - Flam. Liq. 2 - Skin Corr. 1B
• Supplementary Hazards: EUH031
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 68.0 °F - closed cup
• Flash Point(C): 20 °C - closed cup