Carbon dioxide

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Phase change data

Go To: Top, Reaction thermochemistry 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
Ttriple216.58KN/AMarsh, 1987Uncertainty assigned by TRC = 0.008 K; recommended as fixed point for thermometery; TRC
Ttriple216.58KN/AAngus, Armstrong, et al., 1976Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Ptriple5.117atmN/AAngus, Armstrong, et al., 1976Uncertainty assigned by TRC = 0.005 atm; TRC
Quantity Value Units Method Reference Comment
Tc304.18KN/ASuehiro, Nakajima, et al., 1996Uncertainty assigned by TRC = 0.04 K; TRC
Tc304.1KN/AWeber, 1989Uncertainty assigned by TRC = 0.1 K; TRC
Tc304.35KN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.4 K; TRC
Tc304.200KN/AMorrison, 1981Uncertainty assigned by TRC = 0.02 K; TRC
Tc304.23KN/AEfremova and Shvarts, 1972Visual, agreement with literature evidence of sample purity; TRC
Quantity Value Units Method Reference Comment
Pc72.83atmN/ASuehiro, Nakajima, et al., 1996Uncertainty assigned by TRC = 0.15 atm; TRC
Pc72.44atmN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.49 atm; TRC
Pc72.860atmN/AAngus, Armstrong, et al., 1976Uncertainty assigned by TRC = 0.005 atm; TRC
Quantity Value Units Method Reference Comment
Vc0.0919l/molN/ALi and Kiran, 1988Uncertainty assigned by TRC = 0.001 l/mol; TRC
Quantity Value Units Method Reference Comment
ρc10.6mol/lN/ASuehiro, Nakajima, et al., 1996Uncertainty assigned by TRC = 0.05 mol/l; TRC
ρc10.590mol/lN/AAngus, Armstrong, et al., 1976Uncertainty assigned by TRC = 0.007 mol/l; TRC
ρc10.8mol/lN/AAndrizhievskii and Chernova, 1970Uncertainty assigned by TRC = 0.2 mol/l; TRC
ρc10.64mol/lN/ALowry and Erickson, 1927Uncertainty assigned by TRC = 0.034 mol/l; from a plot of (DN(liq) + DN(g))/2 based on exp. measurement and extrapolated to 31.0 deg C; TRC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
3.99288.AStephenson and Malanowski, 1987Based on data from 273. to 304. K.; AC
3.92258.AStephenson and Malanowski, 1987Based on data from 216. to 273. K.; AC
3.94282.N/ABoublík and Aim, 1972Based on data from 267. to 303. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
154.26 to 195.896.806571301.679-3.494Giauque and Egan, 1937Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
6.24207.AStephenson and Malanowski, 1987Based on data from 198. to 216. K.; AC
6.50 ± 0.170. to 102.LEBryson, Cazcarra, et al., 1974AC
6.19188.N/AAmbrose, 1956Based on data from 179. to 198. K.; AC
6.29167.AStull, 1947Based on data from 139. to 195. K.; AC
6.02195.N/AGiauque and Egan, 1937, 2Based on data from 154. to 196. 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, 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. 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.

Reactions 1 to 50

Oxygen cation + Carbon dioxide = (Oxygen cation • Carbon dioxide)

By formula: O2+ + CO2 = (O2+ • CO2)

Quantity Value Units Method Reference Comment
Δr9.8 ± 0.9kcal/molAVGN/AAverage of 4 out of 6 values; Individual data points
Quantity Value Units Method Reference Comment
Δr17.5cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr18.9cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=9.80 kcal/mol; M
Δr20.7cal/mol*KN/ADotan, Davidson, et al., 1978gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970; M
Δr20.cal/mol*KN/AMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change calculated or estimated, DG>, ΔrH>; M
Quantity Value Units Method Reference Comment
Δr4.4kcal/molDTRakshit and Warneck, 1981gas phase; M
Δr4.3kcal/molFADotan, Davidson, et al., 1978gas phase; switching reaction(O2+)O2, Entropy change calculated or estimated; Conway and Janik, 1970; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
9.4600.PHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change calculated or estimated, DG>, ΔrH>; M

CO2+ + Carbon dioxide = (CO2+ • Carbon dioxide)

By formula: CO2+ + CO2 = (CO2+ • CO2)

Quantity Value Units Method Reference Comment
Δr16. ± 1.kcal/molAVGN/AAverage of 7 out of 10 values; Individual data points
Quantity Value Units Method Reference Comment
Δr19.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr18.6cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=15.9 kcal/mol; M
Δr19.5cal/mol*KDTVan Koppen, Kemper, et al., 1983gas phase; M
Δr22.8cal/mol*KPHPMSHeadley, Mason, et al., 1982gas phase; M
Δr21.1cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

O- + Carbon dioxide = (O- • Carbon dioxide)

By formula: O- + CO2 = (O- • CO2)

Quantity Value Units Method Reference Comment
Δr48. ± 10.kcal/molAVGN/AAverage of 8 out of 9 values; Individual data points
Quantity Value Units Method Reference Comment
Δr48.0 ± 5.0kcal/molIMREAdams and Bohme, 1970gas phase; O3- + CO2 <=> CO3- + O2; B

Iodide + Carbon dioxide = (Iodide • Carbon dioxide)

By formula: I- + CO2 = (I- • CO2)

Quantity Value Units Method Reference Comment
Δr3.7 ± 1.8kcal/molN/APiani, Becucci, et al., 2008gas phase; Stated electron affinity is the Vertical Detachment Energy; B
Δr4.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr4.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Δr3.20kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Δr5.60 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
Δr13.4cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Δr18.2cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr0.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr0.80 ± 0.10kcal/molTDAsBanic and Iribarne, 1985gas phase; B,M
Δr0.40 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

Oxygen anion + Carbon dioxide = (Oxygen anion • Carbon dioxide)

By formula: O2- + CO2 = (O2- • CO2)

Quantity Value Units Method Reference Comment
Δr19.00 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Δr17.7 ± 1.8kcal/molIMREPack and Phelps, 1966gas phase; Corrected with more recent EA(O2) = 0.45 eV; B,M
Δr25.4 ± 4.6kcal/molPDisVestal and Mauclaire, 1977gas phase; B
Quantity Value Units Method Reference Comment
Δr24.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Δr21.cal/mol*KDTPack and Phelps, 1966gas phase; M
Quantity Value Units Method Reference Comment
Δr11.7 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Δr12.2 ± 1.2kcal/molIMREPack and Phelps, 1966gas phase; Corrected with more recent EA(O2) = 0.45 eV; B
Δr10.0kcal/molFAAdams and Bohme, 1970gas phase; switching reaction(O2-)O2; Conway and Nesbit, 1968; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
12.9296.FAFehsenfeld and Ferguson, 1974gas phase; switching reaction(O2-)H2O; Arshadi and Kebarle, 1970; M

Fluorine anion + Carbon dioxide = (Fluorine anion • Carbon dioxide)

By formula: F- + CO2 = (F- • CO2)

Quantity Value Units Method Reference Comment
Δr32.07kcal/molN/AArnold, Bradforth, et al., 1995, 2gas phase; B
Δr32.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Δr31.7 ± 2.0kcal/molIMRELarson and McMahon, 1985gas phase; B,M
Δr33.0 ± 3.0kcal/molIMREMcMahon and Northcott, 1978gas phase; B
Quantity Value Units Method Reference Comment
Δr26.7cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Δr24.cal/mol*KN/ALarson and McMahon, 1985gas phase; switching reaction,Thermochemical ladder(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
Δr24.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr24.5 ± 2.0kcal/molIMRELarson and McMahon, 1985gas phase; B,M
Δr11.6kcal/molFASpears and Ferguson, 1973gas phase; DG>; M

Chlorine anion + Carbon dioxide = (Chlorine anion • Carbon dioxide)

By formula: Cl- + CO2 = (Cl- • CO2)

Quantity Value Units Method Reference Comment
Δr6.80 ± 0.50kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
Δr7.60kcal/molTDEqHiraoka, Shoda, et al., 1986gas phase; B,M
Δr8.00 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.2cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Δr19.6cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr2.10kcal/molTDEqHiraoka, Shoda, et al., 1986gas phase; B
Δr2.10 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

(Iodide • 2Carbon dioxide) + Carbon dioxide = (Iodide • 3Carbon dioxide)

By formula: (I- • 2CO2) + CO2 = (I- • 3CO2)

Quantity Value Units Method Reference Comment
Δr2.20kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Δr3.7 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr4.6 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.4cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr-0.6 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 4Carbon dioxide) + Carbon dioxide = (Iodide • 5Carbon dioxide)

By formula: (I- • 4CO2) + CO2 = (I- • 5CO2)

Quantity Value Units Method Reference Comment
Δr1.70kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Δr3.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr4.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • Carbon dioxide) + Carbon dioxide = (Iodide • 2Carbon dioxide)

By formula: (I- • CO2) + CO2 = (I- • 2CO2)

Quantity Value Units Method Reference Comment
Δr3.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr4.7 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Δr2.60kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Quantity Value Units Method Reference Comment
Δr17.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr0.7 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Iodide • 5Carbon dioxide) + Carbon dioxide = (Iodide • 6Carbon dioxide)

By formula: (I- • 5CO2) + CO2 = (I- • 6CO2)

Quantity Value Units Method Reference Comment
Δr3.0 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr1.80kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Δr4.2kcal/molPHPMSHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr19.cal/mol*KN/AHiraoka, Mizuse, et al., 1987gas phase; Entropy change calculated or estimated; M

(Sodium ion (1+) • Carbon dioxide) + Water = (Sodium ion (1+) • Water • Carbon dioxide)

By formula: (Na+ • CO2) + H2O = (Na+ • H2O • CO2)

Quantity Value Units Method Reference Comment
Δr20.7kcal/molHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Δr22.9kcal/molFAPerry, Rowe, et al., 1980gas phase; From thermochemical cycle(Na+) 2H2O; Dzidic and Kebarle, 1970, Peterson, Mark, et al., 1984; M
Quantity Value Units Method Reference Comment
Δr25.3cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Δr25.6cal/mol*KFAPerry, Rowe, et al., 1980gas phase; From thermochemical cycle(Na+) 2H2O; Dzidic and Kebarle, 1970, Peterson, Mark, et al., 1984; M

CHO2+ + Carbon dioxide = (CHO2+ • Carbon dioxide)

By formula: CHO2+ + CO2 = (CHO2+ • CO2)

Quantity Value Units Method Reference Comment
Δr19.8kcal/molPHPMSSzulejko and McMahon, 1992gas phase; M
Δr18.0kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Δr19.1kcal/molPHPMSJennings, Headley, et al., 1982gas phase; M
Δr20.1kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr26.6cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
Δr22.2cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Δr27.1cal/mol*KPHPMSJennings, Headley, et al., 1982gas phase; M
Δr24.2cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(Iodide • 3Carbon dioxide) + Carbon dioxide = (Iodide • 4Carbon dioxide)

By formula: (I- • 3CO2) + CO2 = (I- • 4CO2)

Quantity Value Units Method Reference Comment
Δr1.80kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B
Δr3.6 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr4.5 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Quantity Value Units Method Reference Comment
Δr-1.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

Nitrogen oxide anion + Carbon dioxide = (Nitrogen oxide anion • Carbon dioxide)

By formula: NO2- + CO2 = (NO2- • CO2)

Quantity Value Units Method Reference Comment
Δr7.30 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Δr9.30 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B,M
Quantity Value Units Method Reference Comment
Δr17.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Δr24.2cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr2.1 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Δr2.00 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

Nitric oxide anion + Carbon dioxide = (Nitric oxide anion • Carbon dioxide)

By formula: NO- + CO2 = (NO- • CO2)

Quantity Value Units Method Reference Comment
Δr8.5 ± 0.3kcal/molDTIllies, 1988gas phase; ΔrH(0 K)=8.60 kcal/mol; M
Δr7.7 ± 0.4kcal/molPHPMSHiraoka and Yamabe, 1991gas phase; M
Δr13.8kcal/molFADunkin, Fehsenfeld, et al., 1971gas phase; switching reaction(NO+)NO, ΔrH<; M
Quantity Value Units Method Reference Comment
Δr18.0cal/mol*KDTIllies, 1988gas phase; ΔrH(0 K)=8.60 kcal/mol; M
Δr13.7cal/mol*KPHPMSHiraoka and Yamabe, 1991gas phase; M

(Bromine anion • Carbon dioxide) + Carbon dioxide = (Bromine anion • 2Carbon dioxide)

By formula: (Br- • CO2) + CO2 = (Br- • 2CO2)

Quantity Value Units Method Reference Comment
Δr5.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr6.0 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.0cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr0.3 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(CO2+ • Carbon dioxide) + Carbon dioxide = (CO2+ • 2Carbon dioxide)

By formula: (CO2+ • CO2) + CO2 = (CO2+ • 2CO2)

Quantity Value Units Method Reference Comment
Δr5.6 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr8.3kcal/molEICameron, Aitken, et al., 1994gas phase; M
Δr3.3kcal/molPILinn and Ng, 1981gas phase; M
Δr6.0kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr14.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr24.0cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

Bromine anion + Carbon dioxide = (Bromine anion • Carbon dioxide)

By formula: Br- + CO2 = (Br- • CO2)

Quantity Value Units Method Reference Comment
Δr5.3 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995, 2gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
Δr6.7 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr16.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr1.8 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Chlorine anion • 2Carbon dioxide) + Carbon dioxide = (Chlorine anion • 3Carbon dioxide)

By formula: (Cl- • 2CO2) + CO2 = (Cl- • 3CO2)

Quantity Value Units Method Reference Comment
Δr6.8 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr6.80kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.4cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr0.1 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr0.10kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B

(Chlorine anion • Carbon dioxide) + Carbon dioxide = (Chlorine anion • 2Carbon dioxide)

By formula: (Cl- • CO2) + CO2 = (Cl- • 2CO2)

Quantity Value Units Method Reference Comment
Δr7.2 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr7.20kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B,M
Quantity Value Units Method Reference Comment
Δr20.8cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B
Δr1.00kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; B

Hydronium cation + Carbon dioxide = (Hydronium cation • Carbon dioxide)

By formula: H3O+ + CO2 = (H3O+ • CO2)

Quantity Value Units Method Reference Comment
Δr14.3kcal/molPHPMSSzulejko and McMahon, 1992gas phase; M
Δr15.3kcal/molPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Δr14.4kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M
Quantity Value Units Method Reference Comment
Δr21.2cal/mol*KPHPMSSzulejko and McMahon, 1992gas phase; M
Δr24.6cal/mol*KPHPMSHiraoka, Shoda, et al., 1986gas phase; M
Δr20.7cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; M

(Sodium ion (1+) • 2Water • Carbon dioxide) + Water = (Sodium ion (1+) • 3Water • Carbon dioxide)

By formula: (Na+ • 2H2O • CO2) + H2O = (Na+ • 3H2O • CO2)

Quantity Value Units Method Reference Comment
Δr12.4kcal/molHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity Value Units Method Reference Comment
Δr23.cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity Value Units Method Reference Comment
Δr5.5kcal/molHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M

(Oxygen cation • Carbon dioxide) + Carbon dioxide = (Oxygen cation • 2Carbon dioxide)

By formula: (O2+ • CO2) + CO2 = (O2+ • 2CO2)

Quantity Value Units Method Reference Comment
Δr8.6 ± 0.5kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr7.5kcal/molPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M
Quantity Value Units Method Reference Comment
Δr18.7cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr15.cal/mol*KPHPMSMeot-Ner (Mautner) and Field, 1977gas phase; Entropy change is questionable; M

(Sodium ion (1+) • 3Water) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide • 3Water)

By formula: (Na+ • 3H2O) + CO2 = (Na+ • CO2 • 3H2O)

Quantity Value Units Method Reference Comment
Δr7.2kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr25.cal/mol*KN/APeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr-0.3kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

(Sodium ion (1+) • 3Carbon dioxide) + Carbon dioxide = (Sodium ion (1+) • 4Carbon dioxide)

By formula: (Na+ • 3CO2) + CO2 = (Na+ • 4CO2)

Quantity Value Units Method Reference Comment
Δr8.4kcal/molHPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr25.cal/mol*KN/APeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
0.7310.HPMSPeterson, Mark, et al., 1984gas phase; Entropy change calculated or estimated; M

Sodium ion (1+) + Carbon dioxide = (Sodium ion (1+) • Carbon dioxide)

By formula: Na+ + CO2 = (Na+ • CO2)

Quantity Value Units Method Reference Comment
Δr15.9kcal/molHPMSPeterson, Mark, et al., 1984gas phase; M
Δr13.7kcal/molFAPerry, Rowe, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr20.1cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; M
Δr19.8cal/mol*KFAPerry, Rowe, et al., 1980gas phase; M

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
6.6310.DTKeller and Beyer, 1971gas phase; low E/N; M

(Iodide • 6Carbon dioxide) + Carbon dioxide = (Iodide • 7Carbon dioxide)

By formula: (I- • 6CO2) + CO2 = (I- • 7CO2)

Quantity Value Units Method Reference Comment
Δr3.3 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr1.90kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B

(Iodide • 7Carbon dioxide) + Carbon dioxide = (Iodide • 8Carbon dioxide)

By formula: (I- • 7CO2) + CO2 = (I- • 8CO2)

Quantity Value Units Method Reference Comment
Δr3.1 ± 2.0kcal/molPDisArnold, Bradforth, et al., 1995gas phase; EA given is Vertical Detachment Energy. Affinity: difference between successive EAs in (Y); B
Δr1.90kcal/molN/AGomez, Taylor, et al., 2002gas phase; EA=Vertical Detachment Energy. Affinity is stepwise difference in EAs.; B

(Chlorine anion • 3Carbon dioxide) + Carbon dioxide = (Chlorine anion • 4Carbon dioxide)

By formula: (Cl- • 3CO2) + CO2 = (Cl- • 4CO2)

Quantity Value Units Method Reference Comment
Δr6.40kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; entropy estimated.; B,M
Quantity Value Units Method Reference Comment
Δr24.cal/mol*KN/AHiraoka, Shoda, et al., 1986gas phase; Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr-0.80kcal/molTDAsHiraoka, Shoda, et al., 1986gas phase; entropy estimated.; B

CO3- + Carbon dioxide = C2O5-

By formula: CO3- + CO2 = C2O5-

Quantity Value Units Method Reference Comment
Δr5.90 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Δr7.10 ± 0.10kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B
Quantity Value Units Method Reference Comment
Δr1.0 ± 2.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B
Δr0.60 ± 0.20kcal/molTDAsKeesee, Lee, et al., 1980gas phase; B

HO- + Carbon dioxide = (HO- • Carbon dioxide)

By formula: HO- + CO2 = (HO- • CO2)

Quantity Value Units Method Reference Comment
Δr50.9 ± 2.5kcal/molCIDTSquires, 1992gas phase; Dissociative protonation threshold at nPrSH, 9 kcal> calc. CIDC(HOCO2-..HSH) = 7:1 HOCO2-; B
Δr87.60kcal/molEndoHierl and Paulson, 1984gas phase; Implies ΔHacid = 291.4, anion appears too stable - JEB; B

(CO2+ • 2Carbon dioxide) + Carbon dioxide = (CO2+ • 3Carbon dioxide)

By formula: (CO2+ • 2CO2) + CO2 = (CO2+ • 3CO2)

Quantity Value Units Method Reference Comment
Δr6.0kcal/molEICameron, Aitken, et al., 1994gas phase; M
Δr5.1 ± 0.3kcal/molPHPMSHiraoka, Nakajima, et al., 1988gas phase; M
Δr2.8kcal/molPILinn and Ng, 1981gas phase; M
Quantity Value Units Method Reference Comment
Δr19.1cal/mol*KPHPMSHiraoka, Nakajima, et al., 1988gas phase; M

(Sodium ion (1+) • Water • Carbon dioxide) + Water = (Sodium ion (1+) • 2Water • Carbon dioxide)

By formula: (Na+ • H2O • CO2) + H2O = (Na+ • 2H2O • CO2)

Quantity Value Units Method Reference Comment
Δr17.4kcal/molHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M
Quantity Value Units Method Reference Comment
Δr23.6cal/mol*KHPMSPeterson, Mark, et al., 1984gas phase; From thermochemical cycle; Dzidic and Kebarle, 1970; M

(Fluorine anion • 3Carbon dioxide) + Carbon dioxide = (Fluorine anion • 4Carbon dioxide)

By formula: (F- • 3CO2) + CO2 = (F- • 4CO2)

Quantity Value Units Method Reference Comment
Δr5.8 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr20.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr-0.2 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 4Carbon dioxide) + Carbon dioxide = (Fluorine anion • 5Carbon dioxide)

By formula: (F- • 4CO2) + CO2 = (F- • 5CO2)

Quantity Value Units Method Reference Comment
Δr5.6 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.3cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.0 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • 5Carbon dioxide) + Carbon dioxide = (Fluorine anion • 6Carbon dioxide)

By formula: (F- • 5CO2) + CO2 = (F- • 6CO2)

Quantity Value Units Method Reference Comment
Δr5.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.5cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.4 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

C7O15- + 7Carbon dioxide = C8O17-

By formula: C7O15- + 7CO2 = C8O17-

Quantity Value Units Method Reference Comment
Δr4.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; Estimated entropy; single temperature measurement; B
Quantity Value Units Method Reference Comment
Δr-2.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; Estimated entropy; single temperature measurement; B

(Fluorine anion • 2Carbon dioxide) + Carbon dioxide = (Fluorine anion • 3Carbon dioxide)

By formula: (F- • 2CO2) + CO2 = (F- • 3CO2)

Quantity Value Units Method Reference Comment
Δr7.2 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.6cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr0.5 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Fluorine anion • Carbon dioxide) + Carbon dioxide = (Fluorine anion • 2Carbon dioxide)

By formula: (F- • CO2) + CO2 = (F- • 2CO2)

Quantity Value Units Method Reference Comment
Δr7.3 ± 1.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.2cal/mol*KPHPMSHiraoka, Mizuse, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr1.9 ± 2.0kcal/molTDAsHiraoka, Mizuse, et al., 1987gas phase; B

(Oxygen anion • 2Carbon dioxide) + Carbon dioxide = (Oxygen anion • 3Carbon dioxide)

By formula: (O2- • 2CO2) + CO2 = (O2- • 3CO2)

Quantity Value Units Method Reference Comment
Δr6.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-0.6 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 3Carbon dioxide) + Carbon dioxide = (Oxygen anion • 4Carbon dioxide)

By formula: (O2- • 3CO2) + CO2 = (O2- • 4CO2)

Quantity Value Units Method Reference Comment
Δr4.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.7cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-0.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 4Carbon dioxide) + Carbon dioxide = (Oxygen anion • 5Carbon dioxide)

By formula: (O2- • 4CO2) + CO2 = (O2- • 5CO2)

Quantity Value Units Method Reference Comment
Δr4.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.4cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 5Carbon dioxide) + Carbon dioxide = (Oxygen anion • 6Carbon dioxide)

By formula: (O2- • 5CO2) + CO2 = (O2- • 6CO2)

Quantity Value Units Method Reference Comment
Δr4.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.0cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.5 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • 6Carbon dioxide) + Carbon dioxide = (Oxygen anion • 7Carbon dioxide)

By formula: (O2- • 6CO2) + CO2 = (O2- • 7CO2)

Quantity Value Units Method Reference Comment
Δr4.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr19.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Oxygen anion • Carbon dioxide) + Carbon dioxide = (Oxygen anion • 2Carbon dioxide)

By formula: (O2- • CO2) + CO2 = (O2- • 2CO2)

Quantity Value Units Method Reference Comment
Δr6.60 ± 0.20kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr18.2cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr1.1 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 2Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 3Carbon dioxide)

By formula: (NO2- • 2CO2) + CO2 = (NO2- • 3CO2)

Quantity Value Units Method Reference Comment
Δr6.3 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-0.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 3Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 4Carbon dioxide)

By formula: (NO2- • 3CO2) + CO2 = (NO2- • 4CO2)

Quantity Value Units Method Reference Comment
Δr6.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.9cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.7 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 4Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 5Carbon dioxide)

By formula: (NO2- • 4CO2) + CO2 = (NO2- • 5CO2)

Quantity Value Units Method Reference Comment
Δr5.2 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.3cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-1.8 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

(Nitrogen oxide anion • 5Carbon dioxide) + Carbon dioxide = (Nitrogen oxide anion • 6Carbon dioxide)

By formula: (NO2- • 5CO2) + CO2 = (NO2- • 6CO2)

Quantity Value Units Method Reference Comment
Δr4.9 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.1cal/mol*KPHPMSHiraoka and Yamabe, 1992gas phase; M
Quantity Value Units Method Reference Comment
Δr-2.0 ± 1.0kcal/molTDAsHiraoka and Yamabe, 1992gas phase; B

References

Go To: Top, Phase change data, Reaction thermochemistry data, Notes

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

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Suehiro, Y.; Nakajima, M.; Yamada, K.; Uematsu, M., Critical parameters of {xCO2 + (1 - x)CHF3} for x = (1.0000, 0.7496, 0.5013 , and 0.2522), J. Chem. Thermodyn., 1996, 28, 1153-1164. [all data]

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Andrizhievskii, A.A.; Chernova, N.I., Application of the Moving Meniscus Method in the Study of the Critical Phenomena in One-component Systems, Russ. J. Phys. Chem. (Engl. Transl.), 1970, 44, 1519. [all data]

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Arnold, Bradforth, et al., 1995, 2
Arnold, D.W.; Bradforth, S.E.; Kim, E.H.; Neumark, D.M., Study of halogen carbon dioxide clusters and the fluoroformyloxyl radical by photodetachment of X(-)(CO2) (X=I,Cl,Br) and FCO2-, J. Chem. Phys., 1995, 102, 9, 3493, https://doi.org/10.1063/1.468575 . [all data]

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Arshadi, Yamdagni, et al., 1970
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Notes

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