Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Methylparaben

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, 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, M. Frenkel director
AC - W.E. Acree, Jr., J.S. Chickos

QuantityValueUnitsMethodReferenceComment
Tfus398.4KN/AManzo and Ahumanda, 1990Uncertainty assigned by TRC = 0.5 K; TRC
QuantityValueUnitsMethodReferenceComment
Deltavap83.1kJ/molCGCTemprado, Roux, et al., 2005AC
QuantityValueUnitsMethodReferenceComment
Deltasub98.8 ± 0.8kJ/molGSPerlovich, Rodionov, et al., 2005Based on data from 303. - 327. K.; AC

Enthalpy of vaporization

DeltavapH (kJ/mol)Temperature (K)MethodReferenceComment
81.5461.AStephenson and Malanowski, 1987Based on data from 446. - 517. K.; AC

Enthalpy of fusion

DeltafusH (kJ/mol)Temperature (K)ReferenceComment
25.3399.2Giordano, Bettini, et al., 1999AC
24.31398.5Manzo and Ahumada, 1990AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Manzo and Ahumanda, 1990
Manzo, R.H.; Ahumanda, A.A., Effects of solvent medium on solubility. V: Enthalpic and entropic contributions to the free energy changes of Di-substituted benzene derivatives in ethanol: Water and ethanol: Cyclohexane mixtures, J. Pharm. Sci., 1990, 79, 12, 1109. [doi:10.1002/jps.2600791214] [all data]

Temprado, Roux, et al., 2005
Temprado, Manuel; Roux, Maria Victoria; Umnahanant, Patamaporn; Zhao, Hui; Chickos, James S., The Thermochemistry of 2,4-Pentanedione Revisited: Observance of a Nonzero Enthalpy of Mixing between Tautomers and Its Effects on Enthalpies of Formation, J. Phys. Chem. B, 2005, 109, 25, 12590-12595. [doi:10.1021/jp0515131] [all data]

Perlovich, Rodionov, et al., 2005
Perlovich, German L.; Rodionov, Sergey V.; Bauer-Brandl, Annette, Thermodynamics of solubility, sublimation and solvation processes of parabens, European Journal of Pharmaceutical Sciences, 2005, 24, 1, 25-33. [doi:10.1016/j.ejps.2004.09.007] [all data]

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987. [doi:10.1007/978-94-009-3173-2] [all data]

Giordano, Bettini, et al., 1999
Giordano, Ferdinando; Bettini, Ruggero; Donini, Cristina; Gazzaniga, Andrea; Caira, Mino R.; Zhang, Geoffrey G.Z.; Grant, David J.W., Physical properties of parabens and their mixtures: Solubility in water, thermal behavior, and crystal structures, J. Pharm. Sci., 1999, 88, 11, 1210-1216. [doi:10.1021/js9900452] [all data]

Manzo and Ahumada, 1990
Manzo, Ruben H.; Ahumada, Amelia A., Effects of solvent medium on solubility. V: Enthalpic and entropic contributions to the free energy changes of Di-substituted benzene derivatives in ethanol: Water and ethanol: Cyclohexane mixtures, J. Pharm. Sci., 1990, 79, 12, 1109-1115. [doi:10.1002/jps.2600791214] [all data]


Notes

Go To: Top, Phase change data, References