1-Propanamine, 2-methyl-N-(2-methylpropyl)-
- Formula: C8H19N
- Molecular weight: 129.2432
- IUPAC Standard InChIKey: NJBCRXCAPCODGX-UHFFFAOYSA-N
- CAS Registry Number: 110-96-3
- 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: Diisobutylamine; N,N-Bis(2-methylpropyl)amine; Di(-2-methylpropyl)amine; (i-C4H9)2NH; UN 2361
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- 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, 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 412. ± 1. | K | AVG | N/A | Average of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 196. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tfus | 199.65 | K | N/A | Timmermans and Mattaar, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 203.15 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 584.4 | K | N/A | Toczylkin. L.S. and Young, 1980 | Uncertainty assigned by TRC = 0.58 K; Note: wrong formula given in Table 1; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Pc | 32.00 | bar | N/A | Toczylkin. L.S. and Young, 1980 | Uncertainty assigned by TRC = 0.3197 bar; Visual: Note - wrong formula given in Table 1; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 44.6 ± 1.5 | kJ/mol | V | Ribeiro da Silva, Ribeiro da Silva, et al., 1997 | ALS |
ΔvapH° | 44.6 | kJ/mol | N/A | Ribeiro da Silva, Ribeiro da Silva, et al., 1997 | DRB |
ΔvapH° | 39.3 | kJ/mol | N/A | Lebedeva, Katin, et al., 1971 | Based on data from 291. to 305. K.; AC |
ΔvapH° | 43.1 ± 0.3 | kJ/mol | I | Franks and Watson, 1969 | Based on data from 273. to 333. K.; AC |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
43.8 | 283. | A | Stephenson and Malanowski, 1987 | Based on data from 268. to 413. K. See also Stull, 1947.; AC |
39. | 291. | V | Lebedeva, Katin, et al., 1971, 2 | ALS |
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 |
---|---|---|---|---|---|
268.1 to 412.7 | 4.63706 | 1747.385 | -35.357 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 958.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 925.1 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.8 | PE | Aue and Bowers, 1979 | LLK |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Timmermans and Mattaar, 1921
Timmermans, J.; Mattaar, J.F.,
Freezing points of orgainic substances VI. New experimental determinations.,
Bull. Soc. Chim. Belg., 1921, 30, 213. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Toczylkin. L.S. and Young, 1980
Toczylkin. L.S.; Young, C.L.,
Gas-liquid criticl temperatures of mixtures containing electron donors. II. Amine mixtures,
J. Chem. Thermodyn., 1980, 12, 365. [all data]
Ribeiro da Silva, Ribeiro da Silva, et al., 1997
Ribeiro da Silva, M.A.V.; Ribeiro da Silva, M.D.M.C.; Luisa, M.; Gomes, A.C.N.; Johnson, M.; Pilcher, G.,
Enthalpies of combustion of di-n-propylamine, diisopropylamine, diisobutylamine, and di-sec-butylamine,
J. Chem. Thermodyn., 1997, 29, 1025-1030. [all data]
Lebedeva, Katin, et al., 1971
Lebedeva, N.D.; Katin, Y.A.; Akhmedova, G.Y.,
Russ. J. Phys. Chem., 1971, 45, 6, 771. [all data]
Franks and Watson, 1969
Franks, F.; Watson, B.,
Calorimetric study of dilute aqueous solutions of dialkylamines: hydration of alkyl groups,
Trans. Faraday Soc., 1969, 65, 2339, https://doi.org/10.1039/tf9696502339
. [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]
Lebedeva, Katin, et al., 1971, 2
Lebedeva, N.D.; Katin, Y.A.; Akhmedova, G.Y.,
Enthalpies of formation of dipropylamine, di-isopropylamine, dibutylamine, and di-isobutylamine,
Russ. J. Phys. Chem. (Engl. Transl.), 1971, 45, 771-772. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, 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 - 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.