Methyl parathion

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Phase change data

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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, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus309.24KN/ADonnelly, Drewes, et al., 1990Uncertainty assigned by TRC = 0.2 K; TRC
Tfus308.9KN/APlato and Glasgow, 1969Uncertainty assigned by TRC = 0.1 K; TRC

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
88.9308.AStephenson and Malanowski, 1987Based on data from 293. to 427. K.; AC

Enthalpy of sublimation

ΔsubH (kJ/mol) Temperature (K) Method Reference Comment
125.1303.GS,AKim, Woodrow, et al., 1984Based on data from 298. to 308. K.; AC
108.7283.GSSpencer and Cliath, 1983Based on data from 278. to 288. K. See also Spencer, Shoup, et al., 1979.; AC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Reference Comment
20.07308.2Acree, 1991AC

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

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

Donnelly, Drewes, et al., 1990
Donnelly, J.R.; Drewes, L.A.; Johnson, R.L.; Munslow, W.D.; Knapp, K.K.; Sovocool, G.W., Purity and heat of fusion data for environmental standards as determined by differential scanning calorimetry, Thermochim. Acta, 1990, 167, 2, 155, https://doi.org/10.1016/0040-6031(90)80476-F . [all data]

Plato and Glasgow, 1969
Plato, C.; Glasgow, A.R., Jr., Differential scanning calorimetry as a general method for determining the purity and heat of fusion of high-purity organic chemicals. Application to 95 compounds, Anal. Chem., 1969, 41, 2, 330, https://doi.org/10.1021/ac60271a041 . [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]

Kim, Woodrow, et al., 1984
Kim, Yong-Hwa; Woodrow, James E.; Seiber, James N., Evaluation of a gas chromatographic method calculating vapor pressures with organophosphorus pesticides, Journal of Chromatography A, 1984, 314, 37-53, https://doi.org/10.1016/S0021-9673(01)97721-0 . [all data]

Spencer and Cliath, 1983
Spencer, W.F.; Cliath, M.M., Measurement of pesticide vapor pressures, 1983, 57-71, https://doi.org/10.1007/978-1-4612-5462-16 . [all data]

Spencer, Shoup, et al., 1979
Spencer, William F.; Shoup, Thomas D.; Cliath, Mark M.; Farmer, Walter J.; Haque, Rizwanul, Vapor pressures and relative volatility of ethyl and methyl parathion, J. Agric. Food Chem., 1979, 27, 2, 273-278, https://doi.org/10.1021/jf60222a016 . [all data]

Acree, 1991
Acree, William E., Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation, Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H . [all data]


Notes

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