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What is hydrogen sulfide?

Hydrogen sulfide is a very harmful, colorless gas with a strong, "rotten-egg" odor. This gas is released naturally be decaying plants, animals, and sewage. It can be formed in small amounts when coal and oil are burned. Hydrogen sulfide occurs naturally in sewer gas, swamp gas, manure pits, volcanoes, and fossil fuels. Hydrogen sulfide is also created during the production of oil, rayon, paper and leather. Some industries use hydrogen sulfide to make other chemicals.

On page 5 of the reference below you can see that 'hidrógenos de sulfuro' is listed also as 'ácido sulfhídrico', and also includes the formula H2S,...Hydrogen Sulfide

molecular (covlent) compoumd. Stoiciometric coefficients need to be mentioned explicitly.

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Note added at 1 hr (2007-02-02 23:45:41 GMT)
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Sorry - covalent

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Regardless of what goole says, if we are going to go by the correct nomenclature as specified by chemical societies, then there are two acceptable names:

1) If H2S is a gas, then it is dihydrogen sulfide.
2) If H2S is dissolved to make an aquesous solution (acid), then it is hydrosulfuric acid, jut like hydrochloric acid.

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5. Draw acceptable Lewis Structures for the following compounds? Compute the formal
charges on all the atoms and describe all the bonds as purely covalent or polar
covalent.


H2O (water) H2S (dihydrogen sulfide)




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This is from the Journal of Chemical Physics (one of the premier jouranals in chemistry and physics:

The Journal of Chemical Physics -- 8 June 2005

J. Chem. Phys. 122, 224314 (2005) (9 pages)


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Investigating the breakup dynamics of dihydrogen sulfide ions recombining with electrons

Fredrik Hellberg, Vitali Zhaunerchyk, Anneli Ehlerding, Wolf D. Geppert, Mats Larsson, and Richard D. Thomas
Department of Physics, Stockholm University, AlbaNova, S-106 91, Stockholm Sweden
Mark E. Bannister, Eric Bahati, and C. Randy Vane
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6377
Fabian Österdahl
Department of Physics, Royal Institute of Technology, S-106 91, Stockholm Sweden
Petr Hlavenka
Department of Electronics and Vacuum Physics, Mathematics and Physics Faculty, Charles University Prague, V Holesovickach 2, Prague 8, Czech Republic
Magnus af Ugglas
Manne Siegbahn Laboratory, Stockholm University, S-104 05, Stockholm Sweden

(Received 7 March 2005; accepted 20 April 2005; published online 15 June 2005)

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This is from the Journal "Inorganic Chemistry":

Nonredox Reactions between ** Dihydrogen Sulfide ** and cis-Ret(p-OzCR)2Cl2(p-dppm)2 (R = CH3,
C~HS; dppm = Ph2PCH2PPh2). Isolation and Characterization of Bis(p-hydrosulfido) and
p-gem-Dithiolato Complexes of Dirhenium( 11)


The "hydrogen sulfides" are simply chemical slang ...


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Another source:

** Water H2O + H2S Dihydrogen sulfide **
Systems containing inorganic substances: Water: Heat of Mixing and Solution
Book Series Landolt-Börnstein - Group IV Physical Chemistry
Volume Volume 10B
Book Binary Gaseous, Liquid, Near-Critical, and Supercritical Fluid Systems of Nonelectrolytes
Publisher Springer Berlin Heidelberg
DOI 10.1007/b97686
Copyright 2005
Subject Physics, Landolt-Börnstein, Physical Chemistry, Mechanics, Fluids, Thermodynamics and Physics and Astronomy
DOI 10.1007/11005155_372
Page 1
SpringerLink Date Tuesday, August 29, 2006
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