Nitric acid
- Formula: HNO3
- Molecular weight: 63.0128
- IUPAC Standard InChIKey: GRYLNZFGIOXLOG-UHFFFAOYSA-N
- CAS Registry Number: 7697-37-2
- Chemical structure:
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Reaction thermochemistry data
Go To: Top, Henry's Law 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:
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
By formula: (NO3- • HNO3) + HNO3 = (NO3- • 2HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 76.6 ± 4.2 | kJ/mol | TDAs | Davidson, Fehsenfeld, et al., 1977 | gas phase; B,M |
ΔrH° | 66.9 ± 3.3 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B,M |
ΔrH° | 77.0 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
ΔrH° | 74.1 | kJ/mol | HPMS | Lee, Keesee, et al., 1980 | gas phase; M |
ΔrH° | 83.7 | kJ/mol | ATM | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
ΔrS° | 92.5 | J/mol*K | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; M |
ΔrS° | 100. | J/mol*K | N/A | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
ΔrS° | 96.7 | J/mol*K | HPMS | Wlodek, Luczynski, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 49.0 ± 9.2 | kJ/mol | TDAs | Davidson, Fehsenfeld, et al., 1977 | gas phase; B,M |
ΔrG° | 37.7 ± 1.3 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
52.7 | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
57.7 | 250. | ATM | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
By formula: (NO3- • 2HNO3) + HNO3 = (NO3- • 3HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 67.4 ± 4.2 | kJ/mol | TDAs | Davidson, Fehsenfeld, et al., 1977 | gas phase; B,M |
ΔrH° | 58.2 ± 5.9 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B,M |
ΔrH° | 66.9 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
ΔrH° | 66.9 | kJ/mol | HPMS | Lee, Keesee, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
ΔrS° | 121. | J/mol*K | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; M |
ΔrS° | 112. | J/mol*K | HPMS | Wlodek, Luczynski, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 31. ± 9.2 | kJ/mol | TDAs | Davidson, Fehsenfeld, et al., 1977 | gas phase; B |
ΔrG° | 24.7 ± 1.7 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B |
ΔrG° | 29. | kJ/mol | FA | Fehsenfeld, Howard, et al., 1975 | gas phase; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
42.7 | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1357.7 ± 0.84 | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; Relative to HBr, reevaluated with current HBr acidity. Excited state at 3.0 eV,81WU /TIE.; B |
ΔrH° | 1380. ± 20. | kJ/mol | NBAE | Mathur, Rothe, et al., 1976 | gas phase; From HNO3; B |
ΔrH° | 1377. ± 24. | kJ/mol | Endo | Refaey and Franklin, 1976 | gas phase; I- + HNO3 ->.; B |
ΔrH° | 1357.7 ± 2.1 | kJ/mol | TDEq | Ferguson, Dunkin, et al., 1972 | gas phase; B |
ΔrH° | 1490.8 | kJ/mol | Endo | Berkowitz, Chupka, et al., 1971 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1329.7 ± 0.84 | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; Relative to HBr, reevaluated with current HBr acidity. Excited state at 3.0 eV,81WU /TIE.; B |
By formula: (Br- • HNO3) + HNO3 = (Br- • 2HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 75.7 | kJ/mol | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle(Br-/NO3- - HNO3/HBr), Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 98.7 | J/mol*K | N/A | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle(Br-/NO3- - HNO3/HBr), Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 46.4 | kJ/mol | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle(Br-/NO3- - HNO3/HBr), Entropy change calculated or estimated; M |
By formula: Br- + HNO3 = (Br- • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 83.7 | kJ/mol | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle,switching reaction(Br-/NO3-HNO3/HBr), ΔrH>; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 77.4 | J/mol*K | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle,switching reaction(Br-/NO3-HNO3/HBr), ΔrH>; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
56.1 | 367. | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; From thermochemical cycle,switching reaction(Br-/NO3-HNO3/HBr), ΔrH>; M |
By formula: (NO3- • HNO3) + H2O = (NO3- • H2O • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.4 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
31. | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
By formula: (HO4S- • 2H2O4S) + HNO3 = (HO4S- • HNO3 • 2H2O4S)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.5 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
43.1 | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
By formula: (HO4S- • 3H2O4S) + HNO3 = (HO4S- • HNO3 • 3H2O4S)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 70.7 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
46.4 | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
(HO4S- • ) + HO3S = (HO4S- • HO3S •
)
By formula: (HO4S- • HNO3) + HO3S = (HO4S- • HO3S • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 90.8 | kJ/mol | ATM | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
64.9 | 250. | ATM | Arnold and Qiu, 1984 | gas phase; Entropy change calculated or estimated; M |
By formula: (HO4S- • HNO3) + H2O = (HO4S- • H2O • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 54.4 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
30. | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
By formula: (HO4S- • HNO3) + HNO3 = (HO4S- • 2HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 77.0 | kJ/mol | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 100. | J/mol*K | N/A | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
Free energy of reaction
ΔrG° (kJ/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
52.7 | 233. | ATM | Arnold, Viggiano, et al., 1982 | gas phase; Entropy change calculated or estimated; M |
By formula: (NO3- • 3HNO3) + HNO3 = (NO3- • 4HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 39. ± 5.4 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 83.3 | J/mol*K | HPMS | Wlodek, Luczynski, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 13.4 ± 1.7 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B |
ΔrG° | 29. ± 4.2 | kJ/mol | IMRE | Fehsenfeld, Howard, et al., 1975 | gas phase; B |
By formula: (NO3- • HNO3) + HBr = (NO3- • HBr • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.9 | kJ/mol | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; switching reaction(NO3-)2HNO3; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 95.8 | J/mol*K | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; switching reaction(NO3-)2HNO3; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 38. | kJ/mol | FA | Davidson, Fehsenfeld, et al., 1977 | gas phase; switching reaction(NO3-)2HNO3; M |
By formula: (NO3- • 5HNO3) + HNO3 = (NO3- • 6HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 19.2 ± 3.8 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31. | J/mol*K | HPMS | Wlodek, Luczynski, et al., 1980 | gas phase; Entropy change is questionable; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 10.0 ± 2.9 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B |
By formula: (NO3- • 4HNO3) + HNO3 = (NO3- • 5HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 31. ± 5.0 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 77.8 | J/mol*K | HPMS | Wlodek, Luczynski, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.9 ± 4.2 | kJ/mol | TDAs | Wlodek, Luczynski, et al., 1980 | gas phase; B |
By formula: (NO3- • HBr) + HNO3 = (NO3- • HNO3 • HBr)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.9 ± 8.4 | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 40. ± 12. | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; B |
By formula: C3H6N2O7 + HNO3 = C3H5N3O9 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -6. ± 1. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of nitration; ALS |
ΔrH° | -5. ± 1. | kJ/mol | Cm | Kazakov, Lagodzinskaya, et al., 1989 | liquid phase; ALS |
By formula: C3H8O3 + HNO3 = C3H7NO5 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -19. ± 2. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of Nitration; ALS |
ΔrH° | -10.0 | kJ/mol | Cm | Tsvetkov, Sopin, et al., 1986 | liquid phase; ALS |
By formula: NO3- + HNO3 = (NO3- • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrS° | 100. | J/mol*K | N/A | Davidson, Fehsenfeld, et al., 1977 | gas phase; Entropy change calculated or estimated, DG>, ΔrH>; M |
By formula: Na+ + HNO3 = (Na+ • HNO3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 86.2 | kJ/mol | FA | Perry, Rowe, et al., 1980 | gas phase; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84.9 | J/mol*K | FA | Perry, Rowe, et al., 1980 | gas phase; M |
By formula: C3H7NO5 + HNO3 = C3H6N2O7 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -15. ± 3. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of nitration; ALS |
By formula: C3H8O3 + HNO3 = C3H7NO5 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -10. ± 3. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of nitration; ALS |
By formula: C3H6N2O7 + H2O = C3H7NO5 + HNO3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7. ± 3. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of nitration; ALS |
By formula: C3H6N2O7 + HNO3 = C3H5N3O9 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -10. ± 1. | kJ/mol | Eqk | Kazakov, Kirpichev, et al., 1990 | liquid phase; Heat of nitration; ALS |
By formula: C3H7NO5 + 2HNO3 = C3H5N3O9 + 2H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -18. ± 1. | kJ/mol | Cm | Kazakov, Lagodzinskaya, et al., 1989 | liquid phase; ALS |
By formula: C3H8O3 + 3HNO3 = C3H5N3O9 + 3H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -36. ± 2. | kJ/mol | Cm | Kazakov, Lagodzinskaya, et al., 1989 | liquid phase; ALS |
By formula: C4H10O3 + HNO3 = C4H9NO5 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -11.3 | kJ/mol | Cm | Tsvetkov, Sopin, et al., 1986 | liquid phase; ALS |
By formula: CH3NO2 + HNO3 = 2NO2 + CH4O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 66.48 | kJ/mol | Eqk | Silverwood and Thomas, 1967 | gas phase; ALS |
+
= C2F3NO4 +
By formula: C4F6O3 + HNO3 = C2F3NO4 + C2HF3O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -27.6 | kJ/mol | Cm | Tsvetkov, Shmakov, et al., 1989 | liquid phase; ALS |
+
= C5H11NO6 +
By formula: C5H12O4 + HNO3 = C5H11NO6 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -15.5 | kJ/mol | Cm | Tsvetkov, Sopin, et al., 1986 | liquid phase; ALS |
By formula: C2H6O2 + HNO3 = C2H5NO4 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -7.9 | kJ/mol | Cm | Tsvetkov, Sopin, et al., 1986 | liquid phase; ALS |
By formula: C4H10O3 + HNO3 = C4H9NO5 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -8.8 | kJ/mol | Cm | Tsvetkov, Sopin, et al., 1986 | liquid phase; ALS |
By formula: C2H3NO4 + C2H4O2 = C4H6O3 + HNO3
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16.7 | kJ/mol | Cm | Tsvetkov, Shmakov, et al., 1989 | liquid phase; ALS |
By formula: C3H8O + HNO3 = C3H7NO3 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -23.4 | kJ/mol | Eqk | Rubtsov, 1986 | liquid phase; ALS |
By formula: CH4O + HNO3 = CH3NO3 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -27.6 | kJ/mol | Eqk | Rubtsov, 1986 | liquid phase; ALS |
By formula: C2H6O + HNO3 = C2H5NO3 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -25.1 | kJ/mol | Eqk | Rubtsov, 1986 | liquid phase; ALS |
By formula: C3H8O + HNO3 = C3H7NO3 + H2O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -21.8 | kJ/mol | Eqk | Rubtsov, 1986 | liquid phase; ALS |
Henry's Law data
Go To: Top, 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 by: Rolf Sander
Henry's Law constant (water solution)
kH(T) = k°H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
k°H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(kH))/d(1/T) = Temperature dependence constant (K)
k°H (mol/(kg*bar)) | d(ln(kH))/d(1/T) (K) | Method | Reference | Comment |
---|---|---|---|---|
210000. | 8700. | R | N/A | missing citation assume the temperature dependence to be the same as for a(H+) a(NO3-) / p(HNO3) in missing citation. |
2.4×10+6/KA | 8700. | T | N/A | For strong acids, the solubility is often expressed as kH = ([H+] * [A-]) / p(HA). To obtain the physical solubility of HA, the value has to be divided by the acidity constant KA. missing citation corrects erroneous data from missing citation. |
2.6×10+6 | 8700. | T | N/A | |
350000./KA | 8700. | Q | N/A | For strong acids, the solubility is often expressed as kH = ([H+] * [A-]) / p(HA). To obtain the physical solubility of HA, the value has to be divided by the acidity constant KA. missing citation refer to several references in their list of Henry's law constants but they don't assign them to specific species. |
89000. | C | N/A | ||
210000. | T | N/A |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Henry's Law 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
Data compiled as indicated in comments:
B - John E. Bartmess
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
LL - Sharon G. Lias and Joel F. Liebman
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 751.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 731.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.57 ± 0.15 | NBIE | Mathur, Rothe, et al., 1976 | B |
0.56 ± 0.17 | Endo | Paulson and Dale, 1982 | B |
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
670.3 | Bernardi, Cacace, et al., 1998 | PA at NO+ binding site, estimated from correlation of PAs with NO+ binding energies; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.95 ± 0.01 | PE | Lloyd, Roberts, et al., 1975 | LLK |
11.96 | PE | Frost, Lee, et al., 1975 | LLK |
11.03 ± 0.01 | PI | Nicholson, 1965 | RDSH |
12.2 | PE | Ames and Turner, 1976 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
OH+ | 16.6 | NO2 | PI | Jochims, Denzer, et al., 1992 | LL |
NO+ | 13.07 | ? | PI | Jochims, Denzer, et al., 1992 | LL |
NO2+ | 11.90 | OH | PI | Jochims, Denzer, et al., 1992 | LL |
De-protonation reactions
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1357.7 ± 0.84 | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; Relative to HBr, reevaluated with current HBr acidity. Excited state at 3.0 eV,81WU /TIE.; B |
ΔrH° | 1380. ± 20. | kJ/mol | NBAE | Mathur, Rothe, et al., 1976 | gas phase; From HNO3; B |
ΔrH° | 1377. ± 24. | kJ/mol | Endo | Refaey and Franklin, 1976 | gas phase; I- + HNO3 ->.; B |
ΔrH° | 1357.7 ± 2.1 | kJ/mol | TDEq | Ferguson, Dunkin, et al., 1972 | gas phase; B |
ΔrH° | 1490.8 | kJ/mol | Endo | Berkowitz, Chupka, et al., 1971 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1329.7 ± 0.84 | kJ/mol | TDEq | Davidson, Fehsenfeld, et al., 1977 | gas phase; Relative to HBr, reevaluated with current HBr acidity. Excited state at 3.0 eV,81WU /TIE.; B |
References
Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Davidson, Fehsenfeld, et al., 1977
Davidson, J.A.; Fehsenfeld, F.C.; Howard, C.J.,
The heats of formation of NO3- and NO3- association complexes with HNO3 and HBr,
Int. J. Chem. Kinet., 1977, 9, 17. [all data]
Wlodek, Luczynski, et al., 1980
Wlodek, S.; Luczynski, Z.; Wincel, H.,
Stabilities of gas-phase NO3-.(HNO3)n,n ≤ 6, clusters,
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Arnold, Viggiano, et al., 1982
Arnold, F.; Viggiano, A.A.; Schlager, H.,
Implications for Trace Gases and Aerosols of Large Negative Ions Clusters in the Stratosphere,
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. [all data]
Lee, Keesee, et al., 1980
Lee, N.; Keesee, R.G.; Castleman, A.W., Jr.,
The properties of clusters in the gas phase. IV. Complexes of H2O and HNOx clustering on NOx-,
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Arnold and Qiu, 1984
Arnold, F.; Qiu, S.,
Upper Stratosphere Negative Ion Composition Measurements and Infrared Trace Gas Abundances,
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Fehsenfeld, Howard, et al., 1975
Fehsenfeld, F.C.; Howard, C.J.; Schmeltkopf, A.L.,
Gas Phase Ion Chemistry of HNO3,
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Mathur, Rothe, et al., 1976
Mathur, B.P.; Rothe, E.W.; Tang, S.Y.; Mahajan, K.; Reck, G.P.,
Negative gaseous ions from nitric acid,
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Refaey and Franklin, 1976
Refaey, K.M.A.; Franklin, J.L.,
Endoergic ion-molecule-collision processes of negative ions. V. Collision of I- on HNO3. The electron affinity of NO3,
J. Chem. Phys., 1976, 64, 4810. [all data]
Ferguson, Dunkin, et al., 1972
Ferguson, E.E.; Dunkin, D.B.; Fehsenfeld, F.C.,
Reactions of NO2- and NO3- with HCl and HBr,
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Berkowitz, Chupka, et al., 1971
Berkowitz, J.; Chupka, W.A.; Gutman, D.,
Electron Affinities of O2, O3, NO, NO2, and NO3 by Endothermic Charge Transfer,
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Kazakov, A.I.; Kirpichev, E.P.; Lagodzinskaya, G.V.; Andrienko, L.P.; Yunda, N.G.; Korolev, A.M.; Rubstov, Yu.I.; Manelis, G.B.; Eremenko, L.T.,
Study of nitration equilibrium in the glycerin-aqueous nitric acid system. 2. Changes in ΔH and ΔS in the nitration reaction,
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Thermodynamics of nitration of glycerol,
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Perry, Rowe, et al., 1980
Perry, R.A.; Rowe, B.R.; Viggiano, A.A.; Albritton, D.L.; Ferguson, E.E.; Fehsenfeld, F.C.,
Laboratory Measurements of Stratospheric Sodium Ion Measurements,
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Reaction between methanol and nitrogen dioxide. Part 1.-Low-temperature reaction and the thermodynamic constants of methyl nitrite,
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Tsvetkov, V.G.; Shmakov, V.A.; Sopin, V.F.; Ivanov, A.V.; Ikonnikov, A.A.; Marchenko, G.N.,
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Thermodynamic calculation of equilibrium in nitration of alcohols,
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Lloyd, D.R.; Roberts, P.J.; Hillier, I.H.,
Electronic structure of nitric acid studied by photoelectron spectroscopy and molecular orbital calculation,
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Notes
Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity T Temperature d(ln(kH))/d(1/T) Temperature dependence parameter for Henry's Law constant k°H Henry's Law constant at 298.15K ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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