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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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -78.95 | kcal/mol | Ccb | Guinchant, 1918 | Author hf288_condensed[kcal/mol]=-82.70 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -630.4 | kcal/mol | Ccb | Guinchant, 1918 | Author hf288_condensed[kcal/mol]=-82.70 kcal/mol; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 65.805 | cal/mol*K | N/A | Iskhakov, Ismailov, et al., 1991 | S value does not agree with 87 KHO/BUG.; DH |
S°liquid | 42.412 | cal/mol*K | N/A | Khodzhaeva, Bugakov, et al., 1987 | S value does not agree with 91ISK/ISM.; DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
53.069 | 300. | Iskhakov, Ismailov, et al., 1991 | T = 90 to 300 K.; DH |
52.634 | 298.15 | Khodzhaeva, Bugakov, et al., 1987 | T = 90 to 300 K.; DH |
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
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, 2 | Uncertainty assigned by TRC = 1. K; TRC |
Ttriple | 160. | K | N/A | Iskhakov, Ismailov, et al., 1991, 2 | Glass phase; Uncertainty assigned by TRC = 1. K; TRC |
Ttriple | 246.8 | K | N/A | Khodzhaeva, Bugakov, et al., 1987, 2 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
16.0 | 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 (atm)
T = temperature (K)
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Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
341.0 to 479. | 7.46153 | 3693.663 | 16.138 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
2.815 | 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 | Glass transition. Transition temperature estimated from graph.; DH |
Enthalpy of phase transition
ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
2.8155 | 246.8 | crystaline, I | liquid | Khodzhaeva, Bugakov, et al., 1987 | DH |
Entropy of phase transition
ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
---|---|---|---|---|---|
11.41 | 246.8 | crystaline, I | liquid | Khodzhaeva, Bugakov, et al., 1987 | DH |
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
C5H6NO2- + =
By formula: C5H6NO2- + H+ = C5H7NO2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 339.9 ± 2.3 | kcal/mol | G+TS | Taft and Bordwell, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 333.6 ± 2.0 | kcal/mol | IMRE | Taft and Bordwell, 1988 | gas phase |
References
Go To: Top, Condensed phase thermochemistry data, 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.
Guinchant, 1918
Guinchant, M.J.,
Etude sur la fonction acide dans les derives metheniques et methiniques,
Ann. Chem., 1918, 10, 30-84. [all data]
Iskhakov, Ismailov, et al., 1991
Iskhakov, B.G.; Ismailov, T.S.; Khodzhaeva, M.G.; Igamberdyev, Kh.T.; Mamadalimov, A.T.,
Heat capacity of cyanoacetic acid ethyl ester,
Inzh.-Fiz. Zh., 1991, 61(3), 427-430. [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. Zhur., 1987, 21, 760-762. [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]
Popp, 1964
Popp, F.D.,
Some Derivatives of 3-Bromobenzaldehyde,
J. Chem. Eng. Data, 1964, 9, 381. [all data]
Iskhakov, Ismailov, et al., 1991, 2
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, 2
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]
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]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions 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 ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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