Ethyl orthoformate
- Formula: C7H16O3
- Molecular weight: 148.2001
- IUPAC Standard InChI: InChI=1S/C7H16O3/c1-4-8-7(9-5-2)10-6-3/h7H,4-6H2,1-3H3
- IUPAC Standard InChIKey: GKASDNZWUGIAMG-UHFFFAOYSA-N
- CAS Registry Number: 122-51-0
- 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. - Species with the same structure:
- Other names: Ethane, 1,1',1''-[methylidynetris(oxy)]tris-; Orthoformic acid, triethyl ester; Aethon; Ethone; Orthoformic acid ethyl ester; Triethoxymethane; Triethyl orthoformate; Triethoxmethane; Ethyl formate(ortho); Ethylester kyseliny orthomravenci; Methane, triethoxy-; Orthomravencan ethylnaty; 1,1',1''-(Methylidynetris(oxy))tris(ethane); Triethylester kyseliny orthomravenci; UN 2524; Triethyl ester of orthoformic acid; NSC 5289; 1-(Diethoxymethoxy)ethane
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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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 419.2 | K | N/A | Aldrich Chemical Company Inc., 1990 | BS |
| Tboil | 417. - 419. | K | N/A | Frinton Laboratories Inc., 1986 | BS |
| Tboil | 418.9 | K | N/A | Lecat, 1943 | Uncertainty assigned by TRC = 0.3 K; TRC |
| Tboil | 418. | K | N/A | Pfeiffer and Adkins, 1931 | Uncertainty assigned by TRC = 2.5 K; TRC |
| Tboil | 419. | K | N/A | Carswell and Adkins, 1928 | Uncertainty assigned by TRC = 2. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 197.1 | K | N/A | Timmermans, 1922 | Uncertainty assigned by TRC = 0.4 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 46. ± 3. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 49.0 | 308. | A | Stephenson and Malanowski, 1987 | Based on data from 293. - 323. K.; AC |
| 47.2 | 293. | A | Stephenson and Malanowski, 1987 | Based on data from 278. - 419. 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 |
|---|---|---|---|---|---|
| 278.7 - 419. | 4.84152 | 1821.195 | -42.668 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
References
Go To: Top, Phase change data, 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]
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]
Lecat, 1943
Lecat, M.,
Negative and other Azeotropes,
C. R. Hebd. Seances Acad. Sci., 1943, 217, 242. [all data]
Pfeiffer and Adkins, 1931
Pfeiffer, G.J.; Adkins, H.,
The Relation of the Structure of Ketones to Their Reactivity and Affinity in Acetal Formation II.,
J. Am. Chem. Soc., 1931, 53, 1043. [all data]
Carswell and Adkins, 1928
Carswell, H.E.; Adkins, H.,
The Relation of the Structure of Ketones to their Reactivity and Affinity in Acetal Formation,
J. Am. Chem. Soc., 1928, 50, 235. [all data]
Timmermans, 1922
Timmermans, J.,
Investigation of the Freezing Point of Organic Substances VII,
Bull. Soc. Chim. Belg., 1922, 31, 389. [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]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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