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 Copy

  
• IUPAC Standard InChIKey: DOIRQSBPFJWKBE-UHFFFAOYSA-N Copy
• 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
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • Gas Chromatography
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• 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, Condensed phase thermochemistry data, 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 compiled by: Donald R. Burgess, Jr.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, 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 compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Constant pressure heat capacity of solid

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry 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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Taylor, Hall, et al., 1947
Taylor, J.; Hall, C.R.L.; Thomas, H., The thermochemistry of propellent explosives, J. Phys. Colloid Chem., 1947, 51, 580-592. [all data]

Rabinovich, Novoselova, et al., 1985
Rabinovich, I.B.; Novoselova, N.V.; Moseeva, E.M.; Babinkov, A.G.; Tsvetkova, L.Ya., Low temperature specific heat and thermodynamic functions of dibutyl and dioctyl phthalate, Zhur. Fiz. Khim., 1985, 59, 2127-2130. [all data]

Rabinovich, Martynenko, et al., 1969
Rabinovich, I.E.; Martynenko, L.Ya.; Maslova, V.A., Specific heat and physical properties of some dialkyl phthalates, Tr. Khim. Khim. Tekhnol. 1969, 1969, No.2, 10-14. [all data]

Ambler, 1936
Ambler, H.R., Heats of combustion and formation of dibutyl and diamyl phthalates, J. Indian Chem. Soc., 1936, 55, 291-292. [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]

Martynenko, Rabinovich, et al., 1970
Martynenko, L.Ya.; Rabinovich, I.B.; Ovchinnikov, Yu.V.; Maslova, V.A., Heat capacity of the systems polyvinyl chloride-dioctylphthalate and polyvinyl chloride-dibutylphthalate, Polymer Sci., 1970, USSR 12A, 952-961. [all data]

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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References

• Symbols used in this document:
  

  Cp,liquid	Constant pressure heat capacity of liquid
  Cp,solid	Constant pressure heat capacity of solid
  S°liquid	Entropy of liquid at standard conditions
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  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
• 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.