Hydrogen sulfide

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Phase change data

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil212.87KN/AGoodwin, 1983Uncertainty assigned by TRC = 0.07 K; TRC
Quantity Value Units Method Reference Comment
Tfus190.85KN/ABeckmann and Waentig, 1910Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Ttriple187.66KN/AGoodwin, 1983Uncertainty assigned by TRC = 0.06 K; TRC
Ttriple187.61KN/AGiauque and Blue, 1936Crystal phase 1 phase; Uncertainty assigned by TRC = 0.03 K; temp. scale for transition tempertures, T0 = 273.10 K Nature of transition C2 - C1 not definitely established; TRC
Quantity Value Units Method Reference Comment
Ptriple0.232barN/AGoodwin, 1983Uncertainty assigned by TRC = 0.005 bar; TRC
Quantity Value Units Method Reference Comment
Tc373.3KN/ACubitt, Henderson, et al., 1987Uncertainty assigned by TRC = 0.37 K; Tc from H.Kopper, 1936-450; TRC
Tc373.4KN/AGoodwin, 1983Uncertainty assigned by TRC = 0.15 K; TRC
Quantity Value Units Method Reference Comment
Pc89.70barN/ACubitt, Henderson, et al., 1987Uncertainty assigned by TRC = 0.18 bar; from VP equation fitted to lit. values of vapour pressure; TRC
Pc89.6291barN/AGoodwin, 1983Uncertainty assigned by TRC = 0.30 bar; TRC
Quantity Value Units Method Reference Comment
ρc10.2mol/lN/AGoodwin, 1983Uncertainty assigned by TRC = 0.1 mol/l; TRC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Reference Comment
19.5200.Dykyj, Svoboda, et al., 1999Based on data from 185. to 228. K.; AC
18.6243.Dykyj, Svoboda, et al., 1999Based on data from 228. to 363. K.; AC
21.9200.Giauque and Blue, 1936, 2Based on data from 187. to 213. K.; AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
138.8 to 212.84.43681829.439-25.412Stull, 1947Coefficents calculated by NIST from author's data.
212.8 to 349.54.52887958.587-0.539Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
22.5135.MGClark, Cockett, et al., 1951Based on data from 128. to 142. K.; AC
25.4175.N/AGiauque and Blue, 1936, 2Based on data from 164. to 187. K.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

HS- + Hydrogen cation = Hydrogen sulfide

By formula: HS- + H+ = H2S

Quantity Value Units Method Reference Comment
Δr1470. ± 3.kJ/molAVGN/AAverage of 6 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1441. ± 13.kJ/molH-TSRempala and Ervin, 2000gas phase; B
Δr1443. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr1443.1 ± 0.42kJ/molH-TSShiell, Hu, et al., 1900gas phase; 0K:350.125±0.009 kcal/mol, corr to 298K from Gurvich, Veyts, et al., With EA( Breyer, Frey, et al., 1981)BDE(0K)=89.97±0.05; B
Δr1446. ± 8.4kJ/molIMRECumming and Kebarle, 1978gas phase; B
Δr1432.2kJ/molN/ACheck, Faust, et al., 2001gas phase; MnO2-(t); ; ΔS(EA)=5.4; B

Fluorine anion + Hydrogen sulfide = (Fluorine anion • Hydrogen sulfide)

By formula: F- + H2S = (F- • H2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr145. ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M
Quantity Value Units Method Reference Comment
Δr78.7J/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
Δr121. ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M

H3S+ + Hydrogen sulfide = (H3S+ • Hydrogen sulfide)

By formula: H3S+ + H2S = (H3S+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr64.4kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr45.2kJ/molPIWalters and Blais, 1984gas phase; M
Δr44.4kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Quantity Value Units Method Reference Comment
Δr102.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr74.5J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Δr78.2J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

CN- + Hydrogen sulfide = (CN- • Hydrogen sulfide)

By formula: CN- + H2S = (CN- • H2S)

Quantity Value Units Method Reference Comment
Δr79.1 ± 4.2kJ/molTDEqMeot-ner, 1988gas phase; B
Δr83. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr99.6J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.0 ± 4.2kJ/molTDEqMeot-ner, 1988gas phase; B
Δr51.9 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

(H3S+ • 3Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 4Hydrogen sulfide)

By formula: (H3S+ • 3H2S) + H2S = (H3S+ • 4H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr28.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr10.kJ/molPIWalters and Blais, 1984gas phase; M
Δr14.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr42.J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(H3S+ • 2Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 3Hydrogen sulfide)

By formula: (H3S+ • 2H2S) + H2S = (H3S+ • 3H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr18.kJ/molPIWalters and Blais, 1984gas phase; M
Δr35.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr23.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr59.J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(H3S+ • Hydrogen sulfide) + Water = (H3S+ • Water • Hydrogen sulfide)

By formula: (H3S+ • H2S) + H2O = (H3S+ • H2O • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr79.9kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; From thermochemical cycle,switching reaction(H3S+ H2O)H2O; Cunningham, Payzant, et al., 1972, Lias, Liebman, et al., 1984; M
Quantity Value Units Method Reference Comment
Δr91.2J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; From thermochemical cycle,switching reaction(H3S+ H2O)H2O; Cunningham, Payzant, et al., 1972, Lias, Liebman, et al., 1984; M

(H3S+ • Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 2Hydrogen sulfide)

By formula: (H3S+ • H2S) + H2S = (H3S+ • 2H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr38.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr25.kJ/molPIWalters and Blais, 1984gas phase; M
Δr30.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr87.4J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr72.4J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(H3S+ • 4Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 5Hydrogen sulfide)

By formula: (H3S+ • 4H2S) + H2S = (H3S+ • 5H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr26.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr100.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
7.1185.PHPMSHiraoka and Kebarle, 1977gas phase; M

CH6N+ + Hydrogen sulfide = (CH6N+ • Hydrogen sulfide)

By formula: CH6N+ + H2S = (CH6N+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr45.2kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
23.270.PHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

HS- + Hydrogen sulfide = (HS- • Hydrogen sulfide)

By formula: HS- + H2S = (HS- • H2S)

Quantity Value Units Method Reference Comment
Δr55.2 ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr82.4J/mol*KPHPMSMeot-ner, 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr31. ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B

NH4+ + Hydrogen sulfide = (NH4+ • Hydrogen sulfide)

By formula: H4N+ + H2S = (H4N+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr47.7kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr69.9J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

C3H7+ + Hydrogen sulfide = (C3H7+ • Hydrogen sulfide)

By formula: C3H7+ + H2S = (C3H7+ • H2S)

Quantity Value Units Method Reference Comment
Δr134.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M
Quantity Value Units Method Reference Comment
Δr146.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M

Carbonyl sulfide + Water = Carbon dioxide + Hydrogen sulfide

By formula: COS + H2O = CO2 + H2S

Quantity Value Units Method Reference Comment
Δr-33.4 ± 0.96kJ/molEqkTerres and Wesemann, 1932gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = -35.66 kJ/mol; ALS

(H2S+ • Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 2Hydrogen sulfide)

By formula: (H2S+ • H2S) + H2S = (H2S+ • 2H2S)

Quantity Value Units Method Reference Comment
Δr18.kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Δr13.kJ/molPIWalters and Blais, 1981gas phase; M

Iodide + Hydrogen sulfide = (Iodide • Hydrogen sulfide)

By formula: I- + H2S = (I- • H2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr37. ± 4.2kJ/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M

H2S+ + Hydrogen sulfide = (H2S+ • Hydrogen sulfide)

By formula: H2S+ + H2S = (H2S+ • H2S)

Quantity Value Units Method Reference Comment
Δr88.7kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Δr71.1kJ/molPIWalters and Blais, 1981gas phase; M

Thioacetic acid + Water = Acetic acid + Hydrogen sulfide

By formula: C2H4OS + H2O = C2H4O2 + H2S

Quantity Value Units Method Reference Comment
Δr-2.7 ± 0.3kJ/molCmSunner and Wadso, 1957liquid phase; Heat of hydrolysis; ALS

F5S- + Hydrogen sulfide = (F5S- • Hydrogen sulfide)

By formula: F5S- + H2S = (F5S- • H2S)

Quantity Value Units Method Reference Comment
Δr212. ± 48.kJ/molSIFTZangerle, Hansel, et al., 1993gas phase; CID with Ar; M

(H2S+ • 2Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 3Hydrogen sulfide)

By formula: (H2S+ • 2H2S) + H2S = (H2S+ • 3H2S)

Quantity Value Units Method Reference Comment
Δr5.0kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • 3Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 4Hydrogen sulfide)

By formula: (H2S+ • 3H2S) + H2S = (H2S+ • 4H2S)

Quantity Value Units Method Reference Comment
Δr5.9kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • 4Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 5Hydrogen sulfide)

By formula: (H2S+ • 4H2S) + H2S = (H2S+ • 5H2S)

Quantity Value Units Method Reference Comment
Δr11.kJ/molPIWalters and Blais, 1981gas phase; M

trithiocarbonic acid = Carbon disulfide + Hydrogen sulfide

By formula: CH2S3 = CS2 + H2S

Quantity Value Units Method Reference Comment
Δr44. ± 1.kJ/molCmGattow and Krebes, 1963liquid phase; ALS

Nitric oxide anion + Hydrogen sulfide = H2NOS-

By formula: NO- + H2S = H2NOS-

Quantity Value Units Method Reference Comment
Δr23.4kJ/molN/AHendricks, de Clercq, et al., 2002gas phase; B

Gas phase ion energetics data

Go To: Top, Phase change data, Reaction thermochemistry data, Ion clustering data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to H2S+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)10.457 ± 0.012eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)705.kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity673.8kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.453 ± 0.008PIWalters and Blais, 1984LBLHLM
10.4607 ± 0.0026PIPrest, Tzeng, et al., 1983, 2LBLHLM
10.449 ± 0.006PIWalters and Blais, 1981LLK
10. ± 4.ENDSmith, Adams, et al., 1981LLK
10.48PEKimura, Katsumata, et al., 1981LLK
10.466 ± 0.002SKarlsson, Mattsson, et al., 1976LLK
10.56 ± 0.05EIBalkis, Gaines, et al., 1976LLK
10.5PIRabalais, Debies, et al., 1974LLK
10.43PENatalis, 1973LLK
10.45EIMorrison and Traeger, 1973LLK
10.47PEPotts and Price, 1972LLK
10.43PEDelwiche and Natalis, 1970RDSH
12.76PEDelwiche and Natalis, 1970RDSH
14.91PEDelwiche and Natalis, 1970RDSH
20.8PEDelwiche and Natalis, 1970RDSH
18.0PEDelwiche and Natalis, 1970RDSH
12.81PEDelwiche, Natalis, et al., 1970RDSH
14.79PEDelwiche, Natalis, et al., 1970RDSH
10.43 ± 0.01PIDibeler and Liston, 1968RDSH
10.42PEAl-Joboury and Turner, 1964RDSH
12.62PEAl-Joboury and Turner, 1964RDSH
14.82PEAl-Joboury and Turner, 1964RDSH
18.00PEAl-Joboury and Turner, 1964RDSH
20.12PEAl-Joboury and Turner, 1964RDSH
10.45 ± 0.03EIFrost and McDowell, 1958RDSH
10.46 ± 0.01PIWatanabe, 1954RDSH
10.47 ± 0.01SPrice, 1935RDSH
10.5PEBieri, Asbrink, et al., 1982Vertical value; LBLHLM
10.43PEWagner and Bock, 1974Vertical value; LLK
10.47PESchweig and Thiel, 1974Vertical value; LLK
10.48PEBock, Wagner, et al., 1972Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
HS+14.300 ± 0.024HPIPrest, Tzeng, et al., 1983, 2LBLHLM
HS+14.7 ± 0.2HEIBalkis, Gaines, et al., 1976LLK
HS+14.4HEIMorrison and Traeger, 1973LLK
HS+14.27 ± 0.02HPIDibeler and Liston, 1968RDSH
HS+14.4 ± 0.1HEIPalmer and Lossing, 1962RDSH
S+13.375 ± 0.022H2PIPrest, Tzeng, et al., 1983, 2LBLHLM
S+13.41H2PIPECOEland, 1979LLK
S+13.5H2EIMorrison and Traeger, 1973LLK
S+13.36 ± 0.01H2PIDibeler and Liston, 1968RDSH
S+13.40 ± 0.01H2PIDibeler and Liston, 1968RDSH

De-protonation reactions

HS- + Hydrogen cation = Hydrogen sulfide

By formula: HS- + H+ = H2S

Quantity Value Units Method Reference Comment
Δr1470. ± 3.kJ/molAVGN/AAverage of 6 out of 7 values; Individual data points
Quantity Value Units Method Reference Comment
Δr1441. ± 13.kJ/molH-TSRempala and Ervin, 2000gas phase; B
Δr1443. ± 8.4kJ/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr1443.1 ± 0.42kJ/molH-TSShiell, Hu, et al., 1900gas phase; 0K:350.125±0.009 kcal/mol, corr to 298K from Gurvich, Veyts, et al., With EA( Breyer, Frey, et al., 1981)BDE(0K)=89.97±0.05; B
Δr1446. ± 8.4kJ/molIMRECumming and Kebarle, 1978gas phase; B
Δr1432.2kJ/molN/ACheck, Faust, et al., 2001gas phase; MnO2-(t); ; ΔS(EA)=5.4; B

Ion clustering data

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

CH6N+ + Hydrogen sulfide = (CH6N+ • Hydrogen sulfide)

By formula: CH6N+ + H2S = (CH6N+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr45.2kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr84.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
23.270.PHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

CN- + Hydrogen sulfide = (CN- • Hydrogen sulfide)

By formula: CN- + H2S = (CN- • H2S)

Quantity Value Units Method Reference Comment
Δr79.1 ± 4.2kJ/molTDEqMeot-ner, 1988gas phase; B
Δr83. ± 15.kJ/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr99.6J/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr54.0 ± 4.2kJ/molTDEqMeot-ner, 1988gas phase; B
Δr51.9 ± 9.6kJ/molIMRELarson and McMahon, 1987gas phase; B,M

C3H7+ + Hydrogen sulfide = (C3H7+ • Hydrogen sulfide)

By formula: C3H7+ + H2S = (C3H7+ • H2S)

Quantity Value Units Method Reference Comment
Δr134.kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M
Quantity Value Units Method Reference Comment
Δr146.J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1991gas phase; condensation; M

Fluorine anion + Hydrogen sulfide = (Fluorine anion • Hydrogen sulfide)

By formula: F- + H2S = (F- • H2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr145. ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M
Quantity Value Units Method Reference Comment
Δr78.7J/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
Δr121. ± 8.4kJ/molIMRELarson and McMahon, 1983gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M

F5S- + Hydrogen sulfide = (F5S- • Hydrogen sulfide)

By formula: F5S- + H2S = (F5S- • H2S)

Quantity Value Units Method Reference Comment
Δr212. ± 48.kJ/molSIFTZangerle, Hansel, et al., 1993gas phase; CID with Ar; M

HS- + Hydrogen sulfide = (HS- • Hydrogen sulfide)

By formula: HS- + H2S = (HS- • H2S)

Quantity Value Units Method Reference Comment
Δr55.2 ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr82.4J/mol*KPHPMSMeot-ner, 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr31. ± 4.2kJ/molTDAsMeot-ner, 1988gas phase; B

H2S+ + Hydrogen sulfide = (H2S+ • Hydrogen sulfide)

By formula: H2S+ + H2S = (H2S+ • H2S)

Quantity Value Units Method Reference Comment
Δr88.7kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Δr71.1kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 2Hydrogen sulfide)

By formula: (H2S+ • H2S) + H2S = (H2S+ • 2H2S)

Quantity Value Units Method Reference Comment
Δr18.kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Δr13.kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • 2Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 3Hydrogen sulfide)

By formula: (H2S+ • 2H2S) + H2S = (H2S+ • 3H2S)

Quantity Value Units Method Reference Comment
Δr5.0kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • 3Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 4Hydrogen sulfide)

By formula: (H2S+ • 3H2S) + H2S = (H2S+ • 4H2S)

Quantity Value Units Method Reference Comment
Δr5.9kJ/molPIWalters and Blais, 1981gas phase; M

(H2S+ • 4Hydrogen sulfide) + Hydrogen sulfide = (H2S+ • 5Hydrogen sulfide)

By formula: (H2S+ • 4H2S) + H2S = (H2S+ • 5H2S)

Quantity Value Units Method Reference Comment
Δr11.kJ/molPIWalters and Blais, 1981gas phase; M

H3S+ + Hydrogen sulfide = (H3S+ • Hydrogen sulfide)

By formula: H3S+ + H2S = (H3S+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr64.4kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr45.2kJ/molPIWalters and Blais, 1984gas phase; M
Δr44.4kJ/molPIPrest, Tzeng, et al., 1983gas phase; M
Quantity Value Units Method Reference Comment
Δr102.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr74.5J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Δr78.2J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(H3S+ • Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 2Hydrogen sulfide)

By formula: (H3S+ • H2S) + H2S = (H3S+ • 2H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr38.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr25.kJ/molPIWalters and Blais, 1984gas phase; M
Δr30.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr87.4J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr72.4J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(H3S+ • 2Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 3Hydrogen sulfide)

By formula: (H3S+ • 2H2S) + H2S = (H3S+ • 3H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr18.kJ/molPIWalters and Blais, 1984gas phase; M
Δr35.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr23.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr59.J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(H3S+ • 3Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 4Hydrogen sulfide)

By formula: (H3S+ • 3H2S) + H2S = (H3S+ • 4H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr28.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr10.kJ/molPIWalters and Blais, 1984gas phase; M
Δr14.kJ/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr103.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M
Δr42.J/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(H3S+ • 4Hydrogen sulfide) + Hydrogen sulfide = (H3S+ • 5Hydrogen sulfide)

By formula: (H3S+ • 4H2S) + H2S = (H3S+ • 5H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr26.kJ/molPHPMSHiraoka and Kebarle, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr100.J/mol*KPHPMSHiraoka and Kebarle, 1977gas phase; M

Free energy of reaction

ΔrG° (kJ/mol) T (K) Method Reference Comment
7.1185.PHPMSHiraoka and Kebarle, 1977gas phase; M

NH4+ + Hydrogen sulfide = (NH4+ • Hydrogen sulfide)

By formula: H4N+ + H2S = (H4N+ • H2S)

Bond type: Hydrogen bond (positive ion to hydride)

Quantity Value Units Method Reference Comment
Δr47.7kJ/molPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr69.9J/mol*KPHPMSMeot-Ner (Mautner) and Sieck, 1985gas phase; M

Iodide + Hydrogen sulfide = (Iodide • Hydrogen sulfide)

By formula: I- + H2S = (I- • H2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr37. ± 4.2kJ/molTDAsCaldwell, Masucci, et al., 1989gas phase; B,M

Nitric oxide anion + Hydrogen sulfide = H2NOS-

By formula: NO- + H2S = H2NOS-

Quantity Value Units Method Reference Comment
Δr23.4kJ/molN/AHendricks, de Clercq, et al., 2002gas phase; B

References

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Goodwin, 1983
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Giauque and Blue, 1936
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Notes

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Ion clustering data, References