Pentacosane
- Formula: C25H52
- Molecular weight: 352.6804
- IUPAC Standard InChI: InChI=1S/C25H52/c1-3-5-7-9-11-13-15-17-19-21-23-25-24-22-20-18-16-14-12-10-8-6-4-2/h3-25H2,1-2H3
- IUPAC Standard InChIKey: YKNWIILGEFFOPE-UHFFFAOYSA-N
- CAS Registry Number: 629-99-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: n-Pentacosane
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Normal melting point
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 by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Tfus (K) | Reference | Comment |
|---|---|---|
| 327.20 | Domanska, Lachwa, et al., 1999 | Uncertainty assigned by TRC = 0.4 K; TRC |
| 326. | Bosselet, Letoffe, et al., 1983 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC |
| 326.7 | Schaerer, Busso, et al., 1955 | Crystal phase 1 phase; Uncertainty assigned by TRC = 0.3 K; TRC |
| 326.15 | King, Grundon, et al., 1952 | Uncertainty assigned by TRC = 2. K; TRC |
| 327.65 | Shirley and Schmidt, 1951 | Uncertainty assigned by TRC = 2. K; TRC |
| 326.5 | Seyer, Patterson, et al., 1944 | Uncertainty assigned by TRC = 0.6 K; TRC |
| 326.15 | Hart and Northup, 1935 | Uncertainty assigned by TRC = 3. K; isolated from urine, purity & identity not proven; TRC |
| 326.6 | Spaght, Thomas, et al., 1932 | Uncertainty assigned by TRC = 0.2 K; TRC |
| 326.5 | Parks and Huffman, 1931 | Uncertainty assigned by TRC = 0.6 K; TRC |
| 326.5 | Parks and Todd, 1929 | Uncertainty assigned by TRC = 0.5 K; TRC |
| 325.5 | McKinney, 1924 | Uncertainty assigned by TRC = 3. K; TRC |
| 325.5 | Hofmann and Damm, 1923 | Uncertainty assigned by TRC = 2. K; TRC |
| 326.9 | Gluud, 1919 | Uncertainty assigned by TRC = 2. K; TRC |
| 328.9 | Brigl, 1915 | Uncertainty assigned by TRC = 1. K; TRC |
| 327.1 | Krafft, 1907 | Uncertainty assigned by TRC = 1. K; TRC |
| 327. | Mabery, 1902 | Uncertainty assigned by TRC = 3. K; TRC |
References
Go To: Top, Normal melting point, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Domanska, Lachwa, et al., 1999
Domanska, U.; Lachwa, J.; Morawski, P.,
Phase Equil. and Vol. Prop. in Binary Mixt. Cont. Branched Chain Ethers (Methyl 1,1-Dimethylethyl Ether or Ethyl 1,1-Dimethylethyl Ether or Methyl 1,1-Dimethylpropyl Ether or Ethyl 1,1-Dimethylpropyl,
J. Chem. Eng. Data, 1999, 44, 974-84. [all data]
Bosselet, Letoffe, et al., 1983
Bosselet, F.; Letoffe, J.M.; Claudy, P.,
Etude du comportement thermique des n-alcanes dans des milieux hydrocarbones complexes par analyse calorimetrique differentielle. III.,
Thernochim. Acta, 1983, 70, 35. [all data]
Schaerer, Busso, et al., 1955
Schaerer, A.A.; Busso, C.J.; Smith, A.E.; Skinner, L.B.,
Properties of Pure Normal Alkanes in the C17 to C36 Range,
J. Am. Chem. Soc., 1955, 77, 2017-8. [all data]
King, Grundon, et al., 1952
King; Grundon; Neill,
J. Chem. Soc., 1952, 1952, 4580. [all data]
Shirley and Schmidt, 1951
Shirley, D.A.; Schmidt, G.A.,
Clemmensen Reduction of Long Chain Ketoester,
J. Am. Chem. Soc., 1951, 73, 5493. [all data]
Seyer, Patterson, et al., 1944
Seyer, W.F.; Patterson, R.F.; Keays, J.L.,
The Density and Transition Points of the n-Paraffin Hydrocarbons,
J. Am. Chem. Soc., 1944, 66, 179-82. [all data]
Hart and Northup, 1935
Hart, W.F.; Northup, M.A.,
The Isolation and Identification of a Paraffin Hydrocarbon from Urine of Pregnancy,
J. Am. Chem. Soc., 1935, 57, 2626. [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, 882-8. [all data]
Parks and Huffman, 1931
Parks, G.S.; Huffman, H.M.,
Some fusion and transition data for hydrocarbons,
Ind. Eng. Chem., 1931, 23, 1138-9. [all data]
Parks and Todd, 1929
Parks, G.S.; Todd, S.S.,
Heats of Fusion of Some Praffin Hydrocarbons,
Ind. Eng. Chem., 1929, 21, 1235-7. [all data]
McKinney, 1924
McKinney, J.W.,
J. Am. Chem. Soc., 1924, 46, 968. [all data]
Hofmann and Damm, 1923
Hofmann, F.; Damm, P.,
Brennst.-Chem., 1923, 4, 65. [all data]
Gluud, 1919
Gluud, W.,
Chem. Ber., 1919, 52, 1039. [all data]
Brigl, 1915
Brigl, P.,
Z. Physiol. Chem., 1915, 95, 161. [all data]
Krafft, 1907
Krafft, F.,
Fractional distillation of higher n-alkanes from lignite resin in a vacuum of cathodic rays,
Ber. Dtsch. Chem. Ges., 1907, 40, 4779-84. [all data]
Mabery, 1902
Mabery, C.F.,
Am. Chem. J., 1902, 28, 192. [all data]
Notes
Go To: Top, Normal melting point, References
- Symbols used in this document:
Tfus Fusion (melting) point - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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