Isopropyl Alcohol
- Formula: C3H8O
- Molecular weight: 60.0950
- IUPAC Standard InChI: InChI=1S/C3H8O/c1-3(2)4/h3-4H,1-2H3
- IUPAC Standard InChIKey: KFZMGEQAYNKOFK-UHFFFAOYSA-N
- CAS Registry Number: 67-63-0
- 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: 2-Propanol; sec-Propyl Alcohol; Alcojel; Alcosolve 2; Avantin; Avantine; Combi-Schutz; Dimethylcarbinol; Hartosol; Imsol A; Isohol; Isopropanol; Lutosol; Petrohol; Propol; PRO; Takineocol; 1-Methylethyl Alcohol; iso-C3H7OH; 2-Hydroxypropane; Propane, 2-hydroxy-; sec-Propanol; Propan-2-ol; i-Propylalkohol; Alcolo; Alcool isopropilico; Alcool isopropylique; Alkolave; Arquad DMCB; iso-Propylalkohol; Isopropyl alcohol, rubbing; IPA; Lavacol; Visco 1152; Alcosolve; i-Propanol; 2-Propyl alcohol; Spectrar; Sterisol hand disinfectant; UN 1219; n-Propan-2-ol; 1-methylethanol; Propanol-2; Virahol; IPS 1
- 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 / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
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.
Gas phase thermochemistry data
Go To: Top, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -65.19 | kcal/mol | Eqk | Buckley and Herington, 1965 | ALS |
| ΔfH°gas | -64.79 | kcal/mol | N/A | Chao and Rossini, 1965 | Value computed using ΔfHliquid° value of -317.0±0.3 kj/mol from Chao and Rossini, 1965 and ΔvapH° value of 45.9 kj/mol from Snelson and Skinner, 1961.; DRB |
| ΔfH°gas | -65.07 ± 0.22 | kcal/mol | Ccb | Snelson and Skinner, 1961 | ALS |
| ΔfH°gas | -65.20 | kcal/mol | N/A | Parks, Mosley, et al., 1950 | Value computed using ΔfHliquid° value of -318.7 kj/mol from Parks, Mosley, et al., 1950 and ΔvapH° value of 45.9 kj/mol from Snelson and Skinner, 1961.; DRB |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 8.442 | 50. | Thermodynamics Research Center, 1997 | p=1 bar. Discrepancies with other statistically calculated values [ Green J.H.S., 1963] and [51KOB] increase at high temperatures up to 5 and 9 J/mol*K, respectively, in Cp(T). There is a good agreement with results [ Chao J., 1986]. Please also see Chao J., 1986, 2.; GT |
| 11.00 | 100. | ||
| 13.86 | 150. | ||
| 16.32 | 200. | ||
| 20.01 | 273.15 | ||
| 21.35 ± 0.036 | 298.15 | ||
| 21.45 | 300. | ||
| 26.804 | 400. | ||
| 31.539 | 500. | ||
| 35.445 | 600. | ||
| 38.659 | 700. | ||
| 41.358 | 800. | ||
| 43.659 | 900. | ||
| 45.643 | 1000. | ||
| 47.361 | 1100. | ||
| 48.855 | 1200. | ||
| 50.155 | 1300. | ||
| 51.291 | 1400. | ||
| 52.283 | 1500. | ||
| 54.25 | 1750. | ||
| 55.71 | 2000. | ||
| 56.79 | 2250. | ||
| 57.60 | 2500. | ||
| 58.25 | 2750. | ||
| 58.72 | 3000. |
Constant pressure heat capacity of gas
| Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 24.632 | 358.72 | Stromsoe E., 1970 | Ideal gas heat capacities are given by [ Stromsoe E., 1970] as a linear function Cp=f1*(a+bT). This expression approximates the experimental values with the average deviation of 1.59 J/mol*K. The accuracy of the experimental heat capacities [ Stromsoe E., 1970] is estimated as less than 0.3%. Other experimental values of Cp [ Parks G.S., 1940] (118.83 at 427.9 K, 127.61 at 457.7 K, and 135.56 J/mol*K at 480.3 K) are believed to be less reliable. Please also see Hales J.L., 1963, Berman N.S., 1964.; GT |
| 25.26 ± 0.38 | 365.75 | ||
| 25.280 | 371.15 | ||
| 25.404 | 373.15 | ||
| 25.83 ± 0.38 | 378.85 | ||
| 26.10 ± 0.38 | 384.95 | ||
| 26.310 | 391.15 | ||
| 26.48 ± 0.38 | 393.65 | ||
| 26.685 | 398.15 | ||
| 27.00 ± 0.38 | 405.35 | ||
| 27.330 | 411.15 | ||
| 27.968 | 423.15 | ||
| 28.370 | 431.15 | ||
| 29.183 | 448.15 | ||
| 29.350 | 451.15 | ||
| 29.09 ± 0.38 | 453.15 | ||
| 29.68 ± 0.38 | 466.75 | ||
| 30.356 | 473.15 | ||
| 30.29 ± 0.38 | 480.55 | ||
| 31.13 ± 0.38 | 499.75 | ||
| 31.75 ± 0.38 | 513.95 | ||
| 32.85 ± 0.38 | 539.05 | ||
| 34.08 ± 0.38 | 567.05 | ||
| 35.40 ± 0.38 | 597.25 |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Buckley and Herington, 1965
Buckley, E.; Herington, E.F.G.,
Equilibria in some secondary alcohol + hydrogen + ketone systems,
Trans. Faraday Soc., 1965, 61, 1618-1625. [all data]
Chao and Rossini, 1965
Chao, J.; Rossini, F.D.,
Heats of combustion, formation, and isomerization of nineteen alkanols,
J. Chem. Eng. Data, 1965, 10, 374-379. [all data]
Snelson and Skinner, 1961
Snelson, A.; Skinner, H.A.,
Heats of combustion: sec-propanol, 1,4-dioxan, 1,3-dioxan and tetrahydropyran,
Trans. Faraday Soc., 1961, 57, 2125-2131. [all data]
Parks, Mosley, et al., 1950
Parks, G.S.; Mosley, J.R.; Peterson, P.V., Jr.,
Heats of combustion and formation of some organic compounds containing oxygen,
J. Chem. Phys., 1950, 18, 152. [all data]
Thermodynamics Research Center, 1997
Thermodynamics Research Center,
Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]
Green J.H.S., 1963
Green J.H.S.,
Thermodynamic properties of organic oxygen compounds. Part 12. Vibrational assignment and calculated thermodynamic properties 0-1000 K of isopropyl alcohol,
Trans. Faraday Soc., 1963, 59, 1559-1563. [all data]
Chao J., 1986
Chao J.,
Ideal gas thermodynamic properties of simple alkanols,
Int. J. Thermophys., 1986, 7, 431-442. [all data]
Chao J., 1986, 2
Chao J.,
Thermodynamic properties of key organic oxygen compounds in the carbon range C1 to C4. Part 2. Ideal gas properties,
J. Phys. Chem. Ref. Data, 1986, 15, 1369-1436. [all data]
Stromsoe E., 1970
Stromsoe E.,
Heat capacity of alcohol vapors at atmospheric pressure,
J. Chem. Eng. Data, 1970, 15, 286-290. [all data]
Parks G.S., 1940
Parks G.S.,
Some heat capacity data for isopropyl alcohol vapor,
J. Chem. Phys., 1940, 8, 429. [all data]
Hales J.L., 1963
Hales J.L.,
Thermodynamic properties of organic oxygen compounds. Part 10. Measurement of vapor heat capacities and latent heats of vaporization of isopropyl alcohol,
Trans. Faraday Soc., 1963, 59, 1544-1554. [all data]
Berman N.S., 1964
Berman N.S.,
Vapor heat capacity and heat of vaporization of 2-propanol,
J. Chem. Eng. Data, 1964, 9, 218-219. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔfH°gas Enthalpy of formation of gas at standard conditions - 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.