2-Nonanone
- Formula: C9H18O
- Molecular weight: 142.2386
- IUPAC Standard InChIKey: VKCYHJWLYTUGCC-UHFFFAOYSA-N
- CAS Registry Number: 821-55-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Heptyl methyl ketone; Methyl heptyl ketone; Methyl n-heptyl ketone; Nonan-2-one; n-C7H15COCH3; β-Nonanone; Ketone, heptyl methyl; Nonanone-2
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Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -94.94 ± 0.42 | kcal/mol | Ccr | Sellers, 1977 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1366.36 ± 0.29 | kcal/mol | Ccr | Sellers, 1977 | Corresponding ΔfHºliquid = -94.940 kcal/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
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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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 468. ± 5. | K | AVG | N/A | Average of 11 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 205.9 | K | N/A | Timmermans, 1922 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 651.9 | K | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tc | 652.5 | K | N/A | Pulliam, Gude, et al., 1994 | Uncertainty assigned by TRC = 0.25 K; by the sealed ampule method; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 24.50 | atm | N/A | Wilson, Wilson, et al., 1996 | Uncertainty assigned by TRC = 0.099 atm; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 1.79 | mol/l | N/A | Pulliam, Gude, et al., 1994 | Uncertainty assigned by TRC = 0.025 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 13.49 ± 0.01 | kcal/mol | C | Sellers, 1977 | ALS |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
465.2 | 0.978 | Aldrich Chemical Company Inc., 1990 | BS |
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 |
---|---|---|---|---|---|
305.3 to 468. | 4.71821 | 2030.504 | -37.948 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: 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.
Individual Reactions
C9H17O- + =
By formula: C9H17O- + H+ = C9H18O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 364.2 ± 2.2 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 357.3 ± 2.1 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase |
Gas phase ion energetics data
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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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.16 | EI | Holmes, Fingas, et al., 1981 | LLK |
9.32 ± 0.02 | PE | Cocksey, Eland, et al., 1971 | LLK |
9.38 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C2H3O+ | 12.24 | ? | EI | Potzinger and Bunau, 1969 | RDSH |
C7H15+ | 10.0 ± 0.1 | ? | EI | Potzinger and Bunau, 1969 | RDSH |
C8H15O+ | 10.03 | CH3 | EI | Potzinger and Bunau, 1969 | RDSH |
De-protonation reactions
C9H17O- + =
By formula: C9H17O- + H+ = C9H18O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 364.2 ± 2.2 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 357.3 ± 2.1 | kcal/mol | TDEq | Burkell, Fridgen, et al., 2003 | gas phase; B |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.
Sellers, 1977
Sellers, P.,
Enthalpies of combustion and formation of 2-nonanone and 2-dodecanone,
J. Chem. Thermodyn., 1977, 9, 139-142. [all data]
Timmermans, 1922
Timmermans, J.,
Investigation of the Freezing Point of Organic Substances VII,
Bull. Soc. Chim. Belg., 1922, 31, 389. [all data]
Wilson, Wilson, et al., 1996
Wilson, L.C.; Wilson, H.L.; Wilding, W.V.; Wilson, G.M.,
Critical Point Measurements for Fourteen Compounds by a Static Method and a Flow Method,
J. Chem. Eng. Data, 1996, 41, 1252-4. [all data]
Pulliam, Gude, et al., 1994
Pulliam, M.K.; Gude, M.T.; Teja, A.S.,
The Critical Properties of Twelve Isomeric n-Alkanones with Six to Nine Carbon Atoms,
Experimental Results for DIPPR 1990-91 Projects on Phase Equilibria and Pure Component Properties, 1994, 1994, DIPPR Data Ser. No. 2, p. 184-87. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Burkell, Fridgen, et al., 2003
Burkell, J.L.; Fridgen, T.D.; McMahon, T.B.,
Gas-phase acidities and sites of deprotonation of 2-ketones and structures of the corresponding enolates,
Int. J. Mass Spectrom., 2003, 227, 3, 497-508, https://doi.org/10.1016/S1387-3806(03)00102-7
. [all data]
Holmes, Fingas, et al., 1981
Holmes, J.L.; Fingas, M.; Lossing, F.P.,
Towards a general scheme for estimating the heats of formation of organic ions in the gas phase. Part I. Odd-electron cations,
Can. J. Chem., 1981, 59, 80. [all data]
Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J.,
The effect of alkyl substitution on ionisation potential,
J. Chem. Soc., 1971, (B), 790. [all data]
Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G.,
Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
J. Am. Chem. Soc., 1977, 99, 3980. [all data]
Potzinger and Bunau, 1969
Potzinger, P.; Bunau, G.v.,
Empirische Beruksichtigung von Uberschussenergien bei der Auftrittspotentialbestimmung,
Ber. Bunsen-Ges. Phys. Chem., 1969, 73, 466. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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