Pyridine, 2,3,6-trimethyl-

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Condensed phase thermochemistry 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 by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
220.0300.60Svoboda and Zabransky, 1991T = 300 to 328 K. Cp(liq) = 410.64 - 1.5171T + 2.9366x10-3T2 J/mol*K (300 to 328 K).

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:
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil444.7KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Tc654.5KN/AMajer and Svoboda, 1985 
Quantity Value Units Method Reference Comment
Δvap50.62kJ/molN/AMajer and Svoboda, 1985 

Enthalpy of vaporization

ΔvapH (kJ/mol) Temperature (K) Method Reference Comment
39.95444.7N/AMajer and Svoboda, 1985 
48.5328.CMajer, Svoboda, et al., 1985AC
47.5343.CMajer, Svoboda, et al., 1985AC
45.7368.CMajer, Svoboda, et al., 1985AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kJ/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kJ/mol) β Tc (K) Reference Comment
328. to 368.70.660.3139654.5Majer and Svoboda, 1985 

Mass spectrum (electron ionization)

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

Spectrum

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Additional Data

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Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
NIST MS number 2203

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Gas Chromatography

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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 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
PackedC78, Branched paraffin130.1000.5Dallos, Sisak, et al., 2000He; Column length: 3.3 m
PackedC78, Branched paraffin130.1000.5Reddy, Dutoit, et al., 1992Chromosorb G HP; Column length: 3.3 m
PackedApolane130.1002.Dutoit, 1991Column length: 3.7 m
CapillaryOV-101110.1005.Zhuravleva, Terenina, et al., 199040. m/0.27 mm/0.4 μm
PackedApiezon L130.1017.Shatts, Avots, et al., 1977He, Chromosorb W AW-DMCS; Column length: 2.4 m

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
CapillaryPEG-40M110.1401.Zhuravleva, Terenina, et al., 199040. m/0.22 mm/0.40 μm

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-51009.Premecz and Ford, 1987He, 60. C @ 10. min, 10. K/min, 280. C @ 3. min; Column length: 30. m; Column diameter: 0.32 mm
CapillaryDB-51003.Rostad and Pereira, 198630. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min

Van Den Dool and Kratz RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryCAM1366.Premecz and Ford, 1987He, 60. C @ 5. min, 5. K/min, 240. C @ 21. min; Column length: 15. m; Column diameter: 0.24 mm

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillarySE-30989.4Bur'yan and Nabivach, 19921.7 K/min; Tstart: 82. C; Tend: 177. C

Lee's RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-5161.86Rostad and Pereira, 198630. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min

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.

Svoboda and Zabransky, 1991
Svoboda, V.; Zabransky, M., Heat capacities of liquid 2,3,6-trimethylpyridine, 2,4,6-trimethylpyridine and 3-methoxypropionitrile within the range of temperatures of 300 to 328 K, Collect. Czech. Chem. Commun., 1991, 56(12), 2786-2790. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Majer, Svoboda, et al., 1985
Majer, V.; Svoboda, V.; Lencka, M., Enthalpies of vaporization and cohesive energies of dimethylpyridines and trimethylpyridines, The Journal of Chemical Thermodynamics, 1985, 17, 4, 365-370, https://doi.org/10.1016/0021-9614(85)90133-8 . [all data]

Dallos, Sisak, et al., 2000
Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E., Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups, J. Chromatogr. A, 2000, 904, 2, 211-242, https://doi.org/10.1016/S0021-9673(00)00908-0 . [all data]

Reddy, Dutoit, et al., 1992
Reddy, K.S.; Dutoit, J.-Cl.; Kovats, E. sz., Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups, J. Chromatogr., 1992, 609, 1-2, 229-259, https://doi.org/10.1016/0021-9673(92)80167-S . [all data]

Dutoit, 1991
Dutoit, J., Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases, J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X . [all data]

Zhuravleva, Terenina, et al., 1990
Zhuravleva, I.L.; Terenina, M.B.; Shenderyuk, V.V.; Golovnya, R.V., Capillary chromatography. Calculation of retention indices of alkylpyridines on the basis of non-equal energy contributions of identical alkyl groups, Zh. Anal. Khim., 1990, 45, 722-729. [all data]

Shatts, Avots, et al., 1977
Shatts, V.D.; Avots, A.A.; Belikov, V.A., Retention indices of alkylpyridines, Zh. Anal. Khim., 1977, 32, 4, 631-638. [all data]

Premecz and Ford, 1987
Premecz, J.E.; Ford, M.E., Gas chromatographic separation of substituted pyridines, J. Chromatogr., 1987, 388, 23-35, https://doi.org/10.1016/S0021-9673(01)94463-2 . [all data]

Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E., Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 6, 328-334, https://doi.org/10.1002/jhrc.1240090603 . [all data]

Bur'yan and Nabivach, 1992
Bur'yan, P.; Nabivach, V.M., Investigation of composition of higher heterocnitrogen bases of brown coal tar, Coke Chem. (Engl. Transl.), 1992, 5, 29-33. [all data]


Notes

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