Ethyl cyanoacetate
- Formula: C5H7NO2
- Molecular weight: 113.1146
- IUPAC Standard InChIKey: ZIUSEGSNTOUIPT-UHFFFAOYSA-N
- CAS Registry Number: 105-56-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Acetic acid, cyano-, ethyl ester; Cyanoacetic acid, ethyl ester; Cyanoacetic ester; Ethyl cyanacetate; Ethyl cyanoethanoate; Malonic acid, ethyl ester nitrile; NCCH2COOC2H5; Cyanacetate ethyle; USAF KF-25; Estere cianoacetico; Ethylester kyseliny kyanoctove; UN 2666; Ethyl ester of cyanoacetic acid; Acetic acid, 2-cyano-, ethyl ester; NSC 8844
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Phase change data
Go To: Top, Gas phase ion energetics data, Gas Chromatography, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 482.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 371.65 | K | N/A | Popp, 1964 | Uncertainty assigned by TRC = 1.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Ttriple | 247.0 | K | N/A | Iskhakov, Ismailov, et al., 1991 | Uncertainty assigned by TRC = 1. K; TRC |
Ttriple | 160. | K | N/A | Iskhakov, Ismailov, et al., 1991 | Glass phase; Uncertainty assigned by TRC = 1. K; TRC |
Ttriple | 246.8 | K | N/A | Khodzhaeva, Bugakov, et al., 1987 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
66.9 | 355. | A | Stephenson and Malanowski, 1987 | Based on data from 340. to 479. K. See also Stull, 1947.; 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 |
---|---|---|---|---|---|
341.0 to 479. | 7.46724 | 3693.663 | 16.138 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
11.78 | 246.8 | Domalski and Hearing, 1996 | AC |
Temperature of phase transition
Ttrs (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|
162.5 | crystaline, II | crystaline, I | Khodzhaeva, Bugakov, et al., 1987, 2 | Glass transition. Transition temperature estimated from graph.; DH |
Enthalpy of phase transition
ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
11.780 | 246.8 | crystaline, I | liquid | Khodzhaeva, Bugakov, et al., 1987, 2 | DH |
Entropy of phase transition
ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
47.73 | 246.8 | crystaline, I | liquid | Khodzhaeva, Bugakov, et al., 1987, 2 | DH |
Gas phase ion energetics data
Go To: Top, Phase change data, Gas Chromatography, 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: John E. Bartmess
De-protonation reactions
C5H6NO2- + =
By formula: C5H6NO2- + H+ = C5H7NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1422. ± 9.6 | kJ/mol | G+TS | Taft and Bordwell, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1396. ± 8.4 | kJ/mol | IMRE | Taft and Bordwell, 1988 | gas phase |
Gas Chromatography
Go To: Top, Phase change 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SE-54 | 959. | Weber, 1986 | 25. m/0.31 mm/0.17 μm, H2, 2. K/min; Tstart: 35. C |
Capillary | SE-54 | 960. | Weber, 1986 | 25. m/0.31 mm/0.17 μm, H2, 2. K/min; Tstart: 35. C |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-5 | 962. | Jung, Wichmann, et al., 1999 | 25. m/0.20 mm/0.33 μm, 50. C @ 3. min, 5. K/min; Tend: 180. C |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Popp, 1964
Popp, F.D.,
Some Derivatives of 3-Bromobenzaldehyde,
J. Chem. Eng. Data, 1964, 9, 381. [all data]
Iskhakov, Ismailov, et al., 1991
Iskhakov, B.G.; Ismailov, T.S.; Khodzhaeva, M.G.; Igamberdyev, K.T.; Mamadalimov, A.T.,
Heat capacity of cyanoacetic acid ethyl ester,
Inzh.-Fiz. Zh., 1991, 61, 427-30. [all data]
Khodzhaeva, Bugakov, et al., 1987
Khodzhaeva, M.G.; Bugakov, Yu.V.; Ismailov, T.S.,
Heat capacity and thermodynamic functions of ethyl cyanoacetate,
Khim.-Farm. Zh., 1987, 21, 760-2. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [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]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Khodzhaeva, Bugakov, et al., 1987, 2
Khodzhaeva, M.G.; Bugakov, Yu.V.; Ismailov, T.S.,
Heat capacity and thermodynamic functions of ethyl cyanoacetate,
Khim.-Farm. Zhur., 1987, 21, 760-762. [all data]
Taft and Bordwell, 1988
Taft, R.W.; Bordwell, F.G.,
Structural and Solvent Effects Evaluated from Acidities Measured in Dimethyl Sulfoxide and in the Gas Phase,
Acc. Chem. Res., 1988, 21, 12, 463, https://doi.org/10.1021/ar00156a005
. [all data]
Weber, 1986
Weber, L.,
Utilization of the Sadtler standard RI system in micropollution analyses,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 8, 446-451, https://doi.org/10.1002/jhrc.1240090806
. [all data]
Jung, Wichmann, et al., 1999
Jung, A.; Wichmann, K.-H.; Kolb, M.,
VOC emission of polymeric packaging materials,
LaborPraxis, 1999, 23, 9, 20-22. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point Ttriple Triple point temperature Ttrs Temperature of phase transition ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition ΔfusH Enthalpy of fusion ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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