Dibutyl phthalate
- Formula: C16H22O4
- Molecular weight: 278.3435
- IUPAC Standard InChI: InChI=1S/C16H22O4/c1-3-5-11-19-15(17)13-9-7-8-10-14(13)16(18)20-12-6-4-2/h7-10H,3-6,11-12H2,1-2H3
- IUPAC Standard InChIKey: DOIRQSBPFJWKBE-UHFFFAOYSA-N
- CAS Registry Number: 84-74-2
- 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. - Other names: 1,2-Benzenedicarboxylic acid, dibutyl ester; Phthalic acid, dibutyl ester; n-Butyl phthalate; Butyl phthalate; Celluflex DPB; Elaol; Genoplast B; Hexaplas M/B; Palatinol C; Polycizer DBP; PX 104; Staflex DBP; Unimoll DB; Witcizer 300; Benzene-o-dicarboxylic acid, di-n-butyl ester; o-Benzenedicarboxylic acid, dibutyl ester; Dibutyl-1,2-benzenedicarboxylate; di-n-Butyl phthalate; Phthalic acid di-n-butyl ester; Dibutyl o-phthalate; DBP; RCRA waste number U069; Dibutyl ester of 1,2-benzenedicarboxylic acid; Kodaflex DBP; Morflex 240; Palatinol DBP; Uniplex 150; Dibutyl phthalated; 1,2-Benzenedicarboxylic acid, 1,2-dibutyl ester; DBP (ester); Ergoplast FDB; NSC 6370
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Phase change 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:
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 | 613.2 | K | N/A | Weast and Grasselli, 1989 | BS |
| Tboil | 613. | K | N/A | Buckingham and Donaghy, 1982 | BS |
| Quantity | Value | Units | Method | Reference | Comment |
| Tfus | 238. | K | N/A | Buckingham and Donaghy, 1982 | BS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔvapH° | 91.7 ± 4.6 | kJ/mol | V | Birks and Bradley, 1949 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 89.54 | kJ/mol | V | Hickman, Hecker, et al., 1937 | ALS |
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 80.4 | 462. | N/A | Katayama, 1988 | AC |
| 94.0 | 329. | A | Stephenson and Malanowski, 1987 | Based on data from 314. - 469. K.; AC |
| 76.1 | 483. | A | Stephenson and Malanowski, 1987 | Based on data from 468. - 605. K.; AC |
| 91.7 | 300. | N/A | Birks and Bradley, 1949 | Based on data from 288. - 313. 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 |
|---|---|---|---|---|---|
| 398.8 - 475.20 | 4.30568 | 2083.175 | -131.7 | Hammer and Lydersen, 1957 | 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.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [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]
Birks and Bradley, 1949
Birks, J.; Bradley, R.S.,
The rate of evaporation of droplets. II. The influence of changes of temperature and of the surrounding gas on the rate of evaporation of drops of di-n-butyl phthalate,
Proc. Roy. Soc. London A, 1949, 198, 226-239. [all data]
Hickman, Hecker, et al., 1937
Hickman, K.C.D.; Hecker, J.C.; Embree, N.D.,
Direct determination of low vapor pressures,
Ind. Eng. Chem., 1937, 9, 264-267. [all data]
Katayama, 1988
Katayama, Hirotake,
Vapor pressures of diethyl, diisopropyl, and dibutyl phthalates at reduced pressures.,
Bull. Chem. Soc. Jpn., 1988, 61, 9, 3326-3328, https://doi.org/10.1246/bcsj.61.3326
. [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]
Hammer and Lydersen, 1957
Hammer, E.; Lydersen, A.L.,
The Vapour Pressure of di-n-Butylphthalate, di-n-Butylsebacate, Lauric Acid and Myristic Acid,
Chem. Eng. Sci., 1957, 7, 1-2, 66-72, https://doi.org/10.1016/0009-2509(57)80020-7
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔsubH° Enthalpy of sublimation at standard conditions 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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