Isobutyl acetate
- Formula: C6H12O2
- Molecular weight: 116.1583
- IUPAC Standard InChIKey: GJRQTCIYDGXPES-UHFFFAOYSA-N
- CAS Registry Number: 110-19-0
- 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. - Other names: Acetic acid, 2-methylpropyl ester; Acetic acid, isobutyl ester; β-Methylpropyl ethanoate; 2-Methylpropyl acetate; 2-Methyl-1-propyl acetate; Acetate d'isobutyle; Isobutyl ethanoate; 2-Methylpropyl ethanoate; Isobutylester kyseliny octove; UN 1213; 2-Methyl-1-propanol, acetate; i-Butyl acetate; NSC 8035; Isobutyl acetate fcc
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
BS - Robert L. Brown and Stephen E. Stein
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 |
---|---|---|---|---|---|
Tboil | 390. ± 1. | K | AVG | N/A | Average of 25 out of 26 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 240.15 | K | N/A | Timmermans, 1952 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 560.8 | K | N/A | Quadri and Kudchadker, 1991 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tc | 561.5 | K | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 2. K; TRC |
Tc | 569.0 | K | N/A | Pawlewski, 1882 | Uncertainty assigned by TRC = 5. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 30.10 | bar | N/A | Quadri and Kudchadker, 1991 | Uncertainty assigned by TRC = 0.20 bar; TRC |
Pc | 31.80 | bar | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 0.6079 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.42 | mol/l | N/A | Nadezhdin, 1887 | Uncertainty assigned by TRC = 0.07 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 35.9 ± 0.04 | kJ/mol | V | Mathews, 1926 | ALS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
39.9 | 323. | N/A | Montón, Muñoz, et al., 2005 | Based on data from 308. to 391. K.; AC |
39.2 | 340. | N/A | Burguet, Montón, et al., 1996 | Based on data from 325. to 393. K.; AC |
39.8 | 267. | A | Stephenson and Malanowski, 1987 | Based on data from 252. to 391. K. See also Stull, 1947.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
252.0 to 391. | 4.53676 | 1625.875 | -32.494 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference |
---|---|---|
9.97 | PI | Watanabe, Nakayama, et al., 1962 |
Mass spectrum (electron ionization)
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
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
NIST MS number | 352254 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Timmermans, 1952
Timmermans, J.,
Freezing points of organic compounds. VVI New determinations.,
Bull. Soc. Chim. Belg., 1952, 61, 393. [all data]
Quadri and Kudchadker, 1991
Quadri, S.K.; Kudchadker, A.P.,
Measurement of the critical temperatures and critical pressures of some thermally stable or mildly unstable esters, ketones, and ethers,
J. Chem. Thermodyn., 1991, 23, 129-34. [all data]
Nadezhdin, 1887
Nadezhdin, A.,
Rep. Phys., 1887, 23, 708. [all data]
Pawlewski, 1882
Pawlewski, B.,
The critical temperatures of ester compounds,
Ber. Dtsch. Chem. Ges., 1882, 15, 2460-4. [all data]
Mathews, 1926
Mathews, J.H.,
The accurate measurement of heats of vaporization of liquids,
J. Am. Chem. Soc., 1926, 48, 562-576. [all data]
Montón, Muñoz, et al., 2005
Montón, J.B.; Muñoz, R.; Burguet, M.C.; Torre, J. de la,
Isobaric vapor--liquid equilibria for the binary systems isobutyl alcohol+isobutyl acetate and tert-butyl alcohol+tert-butyl acetate at 20 and 101.3kPa,
Fluid Phase Equilibria, 2005, 227, 1, 19-25, https://doi.org/10.1016/j.fluid.2004.10.022
. [all data]
Burguet, Montón, et al., 1996
Burguet, M. Cruz; Montón, Juan B.; Muñoz, Rosa; Wisniak, Jaime; Segura, Hugo,
Polyazeotropy in Associating Systems: The 2-Methylpropyl Ethanoate + Ethanoic Acid System,
J. Chem. Eng. Data, 1996, 41, 5, 1191-1195, https://doi.org/10.1021/je960159k
. [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]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions ρc Critical density - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.