Acetophenone
- Formula: C8H8O
- Molecular weight: 120.1485
- IUPAC Standard InChIKey: KWOLFJPFCHCOCG-UHFFFAOYSA-N
- CAS Registry Number: 98-86-2
- 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. - Isotopologues:
- Other names: Ethanone, 1-phenyl-; Acetophenon; Benzoyl methide; Hypnon; Hypnone; Methyl phenyl ketone; Phenyl methyl ketone; 1-Phenylethanone; Acetylbenzene; 1-Phenyl-1-ethanone; Ketone, methyl phenyl-; USAF EK-496; Acetofenon; Benzene, acetyl-; Dymex; Rcra waste number U004; Acetylbenzol; NSC 7635; Phenylethanone; 1-phenylethanone (acetophenone)
- 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, IR Spectrum, 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:
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 475. ± 1. | K | AVG | N/A | Average of 11 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 293.0 ± 0.6 | K | AVG | N/A | Average of 7 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 713. | K | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 2. K; TRC |
Tc | 709.6 | K | N/A | Teja and Rosenthal, 1991 | Uncertainty assigned by TRC = 1. K; TRC |
Tc | 709.5 | K | N/A | Teja and Anselme, 1990 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 44.00 | bar | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 1.50 bar; from extraploation of obs. vapor pressures to Tc; TRC |
Pc | 40.10 | bar | N/A | Teja and Rosenthal, 1991 | Uncertainty assigned by TRC = 0.30 bar; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ρc | 2.62 | mol/l | N/A | Steele, Chirico, et al., 1996 | Uncertainty assigned by TRC = 0.10 mol/l; TRC |
ρc | 2.59 | mol/l | N/A | Teja and Anselme, 1990 | Uncertainty assigned by TRC = 0.05 mol/l; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 55.4 ± 0.4 | kJ/mol | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
ΔvapH° | 53.4 | kJ/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 343. to 383. K.; AC |
ΔvapH° | 52.7 | kJ/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 343. to 383. K.; AC |
ΔvapH° | 57.9 | kJ/mol | CGC | Chickos, Hosseini, et al., 1995 | Based on data from 343. to 383. K.; AC |
ΔvapH° | 55.9 ± 1.3 | kJ/mol | V | Cox and Pilcher, 1970 | Review; Heat of formation from Colomina, Latorre, et al., 1961; ALS |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
340. | 0.007 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
52.6 ± 0.4 | 340. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
50.1 ± 0.3 | 380. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
47.5 ± 0.3 | 420. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
45.0 ± 0.4 | 460. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
42.2 ± 0.4 | 500. | EB | Steele, Chirico, et al., 1996, 2 | Based on data from 360. to 520. K.; AC |
49.7 | 390. | A | Stephenson and Malanowski, 1987 | Based on data from 375. to 603. K.; AC |
41.9 | 398. | GS,EB | Collerson, Counsell, et al., 1965 | Based on data from 383. to 437. K.; AC |
51.2 | 325. | N/A | Stull, 1947 | Based on data from 310. to 476. K.; 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 |
---|---|---|---|---|---|
310.3 to 475.6 | 4.64896 | 2006.397 | -43.472 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
16.65 | 292.7 | Louguinine and Dupont, 1911 | See also Sedláková, Malijevská, et al., 2006.; AC |
IR Spectrum
Go To: Top, Phase change data, Mass spectrum (electron ionization), References, Notes
Data compiled by: Coblentz Society, Inc.
- LIQUID (NEAT); PERKIN-ELMER 180 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
- SOLUTION (LESS THAN 10% IN CCl4 FOR 4000-1330 CM-1, LESS THAN 10% IN CS2 FOR 1330-600 CM-1); BECKMAN IR-7 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm-1 resolution
- VAPOR (12 MICROLITER AT 150 C); PERKIN-ELMER 180; DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 2-3 CM-1 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Mass spectrum (electron ionization)
Go To: Top, Phase change data, IR Spectrum, 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 | Chemical Concepts |
NIST MS number | 223435 |
References
Go To: Top, Phase change data, IR Spectrum, 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.
Steele, Chirico, et al., 1996
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor pressure of acetophenone, (+-)-1,2-butanediol, (+-)-1,3-butanediol, diethylene glycol monopropyl ether, 1,3-dimethyladamantane, 2-ethoxyethyl acetate, ethyl octyl sufide, and pentyl acetate,
J. Chem. Eng. Data, 1996, 41, 1255-68. [all data]
Teja and Rosenthal, 1991
Teja, A.S.; Rosenthal, D.J.,
The critical pressures and temperatures of ten substances using a low residence time flow apparatus
in Experimental Results for Phase Equilibria and Pure Component Properties, DIPPR DATA Series No. 1, 1991. [all data]
Teja and Anselme, 1990
Teja, A.S.; Anselme, M.J.,
The critical properties of thermally stable and unstable fluids. I. 1985 results,
AIChE Symp. Ser., 1990, 86, 279, 115-21. [all data]
Steele, Chirico, et al., 1996, 2
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A.,
Vapor Pressure of Acetophenone, (±)-1,2-Butanediol, (±)-1,3-Butanediol, Diethylene Glycol Monopropyl Ether, 1,3-Dimethyladamantane, 2-Ethoxyethyl Acetate, Ethyl Octyl Sulfide, and Pentyl Acetate,
J. Chem. Eng. Data, 1996, 41, 6, 1255-1268, https://doi.org/10.1021/je9601117
. [all data]
Chickos, Hosseini, et al., 1995
Chickos, James S.; Hosseini, Sarah; Hesse, Donald G.,
Determination of vaporization enthalpies of simple organic molecules by correlations of changes in gas chromatographic net retention times,
Thermochimica Acta, 1995, 249, 41-62, https://doi.org/10.1016/0040-6031(95)90670-3
. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Colomina, Latorre, et al., 1961
Colomina, M.; Latorre, C.; Perez-Ossorio, R.,
Heats of combustion of five alkyl phenyl ketones,
Pure & Appl. Chem., 1961, 2, 133-135. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [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]
Collerson, Counsell, et al., 1965
Collerson, R.R.; Counsell, J.F.; Handley, R.; Martin, J.F.; Sprake, C.H.S.,
677. Thermodynamic properties of organic oxygen compounds. Part XV. Purification and vapour pressures of some ketones and ethers,
J. Chem. Soc., 1965, 3697, https://doi.org/10.1039/jr9650003697
. [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]
Louguinine and Dupont, 1911
Louguinine, W.; Dupont, G.,
Bull. Soc. Chim. Fr., 1911, 9, 219. [all data]
Sedláková, Malijevská, et al., 2006
Sedláková, Zuzana; Malijevská, Ivona; Rehák, Karel; Vrbka, Pavel,
Solid-Liquid and Liquid-Liquid Equilibrium in the Formamide-Acetophenone System,
Collect. Czech. Chem. Commun., 2006, 71, 9, 1350-1358, https://doi.org/10.1135/cccc20061350
. [all data]
Notes
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References
- Symbols used in this document:
Pc Critical pressure Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔfusH Enthalpy of fusion 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.