World Library  
Flag as Inappropriate
Email this Article

Ammonium hydrosulfide

Article Id: WHEBN0002088217
Reproduction Date:

Title: Ammonium hydrosulfide  
Author: World Heritage Encyclopedia
Language: English
Subject: Bisulfide, Sodium hydrosulfide
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Ammonium hydrosulfide

Ammonium hydrosulfide
Identifiers
CAS number 12124-99-1 YesY
ChemSpider 23805 YesY
RTECS number BS4900000
Jmol-3D images Image 1
Properties
Molecular formula H5NS
Molar mass 51.111 g/mol
Appearance Yellow-orange fuming liquid.
Density 1.17 g/cm3[1]
Boiling point

56.6 °C, 330 K, 134 °F

Solubility in water Miscible in all proportions
Solubility soluble in alcohol, liquid ammonia, liquid hydrogen sulfide; insoluble in benzene, hexane and ether
Refractive index (nD) 1.74
Hazards
R-phrases R11, R23, R24, R25.
Main hazards Toxic
NFPA 704
3
3
0
LD50 168 mg/kg (rat, oral)[2]
Related compounds
Other anions Ammonium sulfate
Other cations Sodium hydrosulfide
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Ammonium hydrosulfide is the chemical compound with the formula (NH4)SH. It is the salt derived from the ammonium cation and the hydrosulfide anion. The salt exists as colourless, water soluble, micaceous crystals. The compound is encountered mainly as a solution, not as the solid. It is generated by mixing hydrogen sulfide and ammonia.

Preparation

Solutions of ammonium hydrosulfide can be prepared by passing hydrogen sulfide gas through concentrated ammonia solution.[3] According to a detailed 1895 report, hydrogen sulfide reacts with concentrated aqueous ammonia solution at room temperature to give (NH4)2S·2NH4HS. When this species is cooled to 0 °C and treated with additional hydrogen sulfide, one obtains (NH4)2S·12NH4HS.[4] An ice-cold solution of this substance kept at 0 °C and having hydrogen sulfide continually passed through it gives the hydrosulfide.

The common "stink bomb" consists of an aqueous solution of ammonium sulfide. The mixture easily converts to ammonia and hydrogen sulfide gases. This conversion illustrates the ease of the following equilibrium:

(NH4)SH\overrightarrow{\leftarrow} NH3 + H2S

Both ammonia and hydrogen sulfide have a powerfully unpleasant smell.

References

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.