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Methyl parathion

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Phase change data

Go To: Top, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, 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, Kenneth Kroenlein 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

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
21.2308.AStephenson and Malanowski, 1987Based on data from 293. - 427. K.; AC

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
29.90303.GS,AKim, Woodrow, et al., 1984Based on data from 298. - 308. K.; AC
25.98283.GSSpencer and Cliath, 1983Based on data from 278. - 288. K. See also Spencer, Shoup, et al., 1979.; AC

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Reference Comment
4.797308.2Acree, 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:


IR Spectrum

Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes

Data compiled by: Coblentz Society, Inc.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director


Mass spectrum (electron ionization)

Go To: Top, Phase change data, IR Spectrum, Gas Chromatography, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin NIST Mass Spectrometry Data Center, 1990.
NIST MS number 118979

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


Gas Chromatography

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryOV-1190.1851.Erdmann, Rochholz, et al., 1992 
CapillaryOV-1220.1878.Erdmann, Rochholz, et al., 1992 
CapillarySPB-1250.1905.Lora-Tamayo, Rams, et al., 1986He; Column length: 25. m; Column diameter: 0.20 mm

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-11856.Hall, Whitehead, et al., 1986He, 6. K/min; Column length: 15. m; Column diameter: 0.25 mm; Tstart: 100. C; Tend: 270. C
CapillaryDB-51903.Hall, Whitehead, et al., 1986He, 6. K/min; Column length: 15. m; Column diameter: 0.25 mm; Tstart: 100. C; Tend: 270. C

Kovats' RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
PackedSE-301845.Ramsey, Lee, et al., 1980He, Chromosorb G HP (80-100 mesh); Column length: 1.5 m; Program: not specified

Normal alkane RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedOV-1190.1855.TSunoda, 1986Helium, Chromosorb W AW DMCS; Column length: 1. m

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
PackedOV-11840.TSunoda, 1986Helium, Chromosorb W AW DMCS, 4. K/min, 210. C @ 20. min; Column length: 1. m; Tstart: 140. C
PackedOV-11895.Marozzi, Gambaro, et al., 1982Gas Chrom P, 2.5 K/min; Column length: 2. m; Tstart: 120. C; Tend: 200. C
PackedSE-301840.Marozzi, Gambaro, et al., 1982Gas Chrom P, 2.5 K/min; Column length: 2. m; Tstart: 120. C; Tend: 200. C

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
Capillary5 % Phenyl methyl siloxane1896.Department of Food Safety and Welfare, 200630. m/0.25 mm/0.25 «mu»m, Helium; Program: 50 0C(1 min) 25 0C/min -> 125 0C 10 0C/min -> 300 0C (10 min)
Capillary5 % Phenyl methyl siloxane1899.Department of Food Safety and Welfare, 200630. m/0.25 mm/0.25 «mu»m, Helium; Program: 50 0C(1 min) 25 0C/min -> 125 0C 10 0C/min -> 300 0C (10 min)
CapillaryMethyl Silicone1843.Zenkevich, Ostroukhova, et al., 2002Program: not specified
CapillaryOV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.1851.Waggott and Davies, 1984Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified
OtherMethyl Silicone1851.Ardrey and Moffat, 1981Program: not specified

References

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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]

Erdmann, Rochholz, et al., 1992
Erdmann, F.; Rochholz, G.; Schütz, H., Retention-indices on OV-1 of approximately 170 commonly used pesticides, Mikrochim. Acta, 1992, 106, 3-6, 219-226, https://doi.org/10.1007/BF01242093 . [all data]

Lora-Tamayo, Rams, et al., 1986
Lora-Tamayo, C.; Rams, M.A.; Chacon, J.M.R., Gas Chromatographic Data for 187 Nitrogen- or Phosphorus-Containing Drugs and Metabolites of Toxicological Interest Analysed on Methyl Silicone Capillary Columns, J. Chromatogr., 1986, 374, 73-85, https://doi.org/10.1016/S0378-4347(00)83254-5 . [all data]

Hall, Whitehead, et al., 1986
Hall, G.L.; Whitehead, W.E.; Mourer, C.R.; Shibamoto, T., A new gas chromatographic retention index for pesticides and related compounds, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 5, 266-271, https://doi.org/10.1002/jhrc.1240090503 . [all data]

Ramsey, Lee, et al., 1980
Ramsey, J.D.; Lee, T.D.; Osselton, M.D.; Moffat, A.C., Gas-liquid chromatographic retention indices of 296 non-drug substances on SE-30 or OV-1 likely to be encountered in toxicological analyses, J. Chromatogr., 1980, 184, 2, 185-206, https://doi.org/10.1016/S0021-9673(00)85641-1 . [all data]

TSunoda, 1986
TSunoda, N., Simultaneous determination of organophosphorous pesticides in forencis chemistry by gas-liquid chromatography with hydrogen flame ionization detector, Eisei Kagaku, 1986, 32, 2, 91-100, https://doi.org/10.1248/jhs1956.32.91 . [all data]

Marozzi, Gambaro, et al., 1982
Marozzi, E.; Gambaro, V.; Saligari, E.; Mariani, R.; Lodi, F., Use of the retention index in gas chromatographic studies of drugs, J. Anal. Toxicol., 1982, 6, 4, 185-192, https://doi.org/10.1093/jat/6.4.185 . [all data]

Department of Food Safety and Welfare, 2006
Department of Food Safety, Ministry of Health; Welfare, Analytical methods for residual compositional substances of agricultural chemicals, feed aadditives, and veterinary drugs in foods, 2006, retrieved from http://www.mhlw.go.jp/english/topics/foodsafety/positivelist060228/de/060526-1a.pdf. [all data]

Zenkevich, Ostroukhova, et al., 2002
Zenkevich, I.G.; Ostroukhova, O.K.; Dolzhenko, V.I., Optimum analytical parameters for chromatographic characterization of pesticides, J. Anal. Chem. USSR (Engl. Transl.), 2002, 57, 1, 35-39. [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Ardrey and Moffat, 1981
Ardrey, R.E.; Moffat, A.C., Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase, J. Chromatogr., 1981, 220, 3, 195-252, https://doi.org/10.1016/S0021-9673(00)81925-1 . [all data]


Notes

Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References