Acetamide, N-(aminocarbonyl)-
- Formula: C3H6N2O2
- Molecular weight: 102.0919
- IUPAC Standard InChIKey: GKRZNOGGALENQJ-UHFFFAOYSA-N
- CAS Registry Number: 591-07-1
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Urea, acetyl-; Acetic acid, ureide; Acetylcarbamide; Acetylurea; Monoacetylurea; N-Acetylurea; 1-Acetylurea
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -105.6 ± 0.2 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | see Imamura, Murata, et al., 1988 |
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°solid | -130.20 ± 0.13 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | see Imamura, Murata, et al., 1988 |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -356.90 ± 0.07 | kcal/mol | Ccr | Imamura, Takahashi, et al., 1989 | see Imamura, Murata, et al., 1988 |
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 24.63 ± 0.16 | kcal/mol | C | Imamura, Takahashi, et al., 1989 | see Imamura, Murata, et al., 1988; ALS |
ΔsubH° | 24.6 ± 0.2 | kcal/mol | N/A | Imamura, Murata, et al., 1988 | AC |
ΔsubH° | 24.6 ± 0.2 | kcal/mol | C | Murata, Sakiyama, et al., 1985 | AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
24.5 ± 0.2 | 383. | Imamura, Murata, et al., 1988 | Based on data from 360. to 407. K.; AC |
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
C3H5N2O2- + =
By formula: C3H5N2O2- + H+ = C3H6N2O2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 348.5 ± 2.9 | kcal/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; Acid: acetylurea |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 341.1 ± 2.0 | kcal/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; Acid: acetylurea |
References
Go To: Top, Gas phase thermochemistry data, 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.
Imamura, Takahashi, et al., 1989
Imamura, A.; Takahashi, K.; Murata, S.; Sakiyama, M.,
Standard enthalpies of formation of trimethyl cyanurate, malonamide, and 1,3-dimethyluracil,
J. Chem. Thermodyn., 1989, 21, 237-246. [all data]
Imamura, Murata, et al., 1988
Imamura, A.; Murata, S.; Sakiyama, M.,
Combustion and sublimation calorimetric studies on acetylurea and trimethyl isocyanurate,
J. Chem. Thermodyn., 1988, 20, 389-396. [all data]
Murata, Sakiyama, et al., 1985
Murata, S.; Sakiyama, M.; Seki, S.,
Sublimation calorimetric studies using a calvet microcalorimeter,
Thermochimica Acta, 1985, 88, 1, 121-126, https://doi.org/10.1016/0040-6031(85)85419-8
. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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