- Formula: C33H68
- Molecular weight: 464.8930
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: SUJUOAZFECLBOA-UHFFFAOYSA-N
- CAS Registry Number: 630-05-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
- Other names: n-Tritriacontane
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
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.
Condensed phase thermochemistry data
Go To: Top, Phase change data, 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: Eugene S. Domalski and Elizabeth D. Hearing
|S°solid,1 bar||877.8||J/mol*K||N/A||Parks, Huffman, et al., 1930||Extrapolation below 90 K, 267 J/mol*K.|
Constant pressure heat capacity of liquid
|Cp,liquid (J/mol*K)||Temperature (K)||Reference||Comment|
|1112.5||353.||Spaght, Thomas, et al., 1932||T = 80 to 110°C.|
Constant pressure heat capacity of solid
|Cp,solid (J/mol*K)||Temperature (K)||Reference||Comment|
|900.8||294.4||Parks, Huffman, et al., 1930||T = 94 to 294 K. Value is unsmoothed experimental datum.|
Phase change data
Go To: Top, Condensed phase thermochemistry data, Mass spectrum (electron ionization), References, Notes
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
|Tfus||345. ± 3.||K||AVG||N/A||Average of 11 values; Individual data points|
|vapH°||167.6||kJ/mol||CGC||Chickos and Hanshaw, 2004||Based on data from 534. - 565. K.; AC|
Enthalpy of vaporization
|vapH (kJ/mol)||Temperature (K)||Method||Reference||Comment|
|148. ± 1.||458.||TE||Piacente, Fontana, et al., 1994||Based on data from 438. - 480. K.; AC|
|118.||532.||A,E||Stephenson and Malanowski, 1987||Based on data from 517. - 749. K. See also Kudchadker and Zwolinski, 1966.; AC|
Enthalpy of fusion
|fusH (kJ/mol)||Temperature (K)||Reference||Comment|
|105.039||344.2||Spaght, Thomas, et al., 1932||DH|
|105.02||344.||Domalski and Hearing, 1996||AC|
Entropy of fusion
|fusS (J/mol*K)||Temperature (K)||Reference||Comment|
|305.2||344.2||Spaght, Thomas, et al., 1932||DH|
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Select a region with data to zoom. Select a region with no data or click the mouse on the plot to revert to the orginal display.
The following components were used in generating the plot:
- jQuery UI
- Plugins for Flot:
Use or mention of technologies or programs in this web site is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that these items are necessarily the best available for the purpose.
View image of digitized spectrum (can be printed in landscape orientation).
Download spectrum in JCAMP-DX format.
|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||Japan AIST/NIMC Database- Spectrum MS-NW-7070|
|NIST MS number||236546|
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes
Parks, Huffman, et al., 1930
Parks, G.S.; Huffman, H.M.; Thomas, S.B., Thermal data on organic compounds. VI. The heat capacities, entropies and free energies of some saturated, non-benzenoid hydrocarbons, J. Am. Chem. Soc., 1930, 52, 1032-1041. [all data]
Spaght, Thomas, et al., 1932
Spaght, M.E.; Thomas, S.B.; Parks, G.S., Some heat capacity data on organic compounds obtained with a radiation calorimeter, J. Phys. Chem., 1932, 36, 882-888. [all data]
Chickos and Hanshaw, 2004
Chickos, James S.; Hanshaw, William, Vapor Pressures and Vaporization Enthalpies of the n -Alkanes from C 31 to C 38 at T = 298.15 K by Correlation Gas Chromatography, J. Chem. Eng. Data, 2004, 49, 3, 620-630, https://doi.org/10.1021/je030236t . [all data]
Piacente, Fontana, et al., 1994
Piacente, Vincenzo; Fontana, Danilo; Scardala, Paolo, Enthalpies of Vaporization of a Homologous Series of n-Alkanes Determined from Vapor Pressure Measurements, J. Chem. Eng. Data, 1994, 39, 2, 231-237, https://doi.org/10.1021/je00014a009 . [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]
Kudchadker and Zwolinski, 1966
Kudchadker, A.P.; Zwolinski, B.J., Vapor Pressure and Boiling Points of Normal Alkanes, C 21 to C 100 ., J. Chem. Eng. Data, 1966, 11, 2, 253-255, https://doi.org/10.1021/je60029a039 . [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) Tfus Fusion (melting) point fusH Enthalpy of fusion fusS Entropy of fusion vapH Enthalpy of vaporization vapH° 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.