- Formula: C18H36O
- Molecular weight: 268.4778
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: FWWQKRXKHIRPJY-UHFFFAOYSA-N
- CAS Registry Number: 638-66-4
- Chemical structure:
This structure is also available as a 2d Mol file
- Other names: Stearaldehyde; Octadecyl aldehyde; Stearyl aldehyde; n-Octadecanal; 1-octadecanal
- 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.
Phase change data
Go To: Top, Mass spectrum (electron ionization), References, Notes
Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny, director
AC - William E. Acree, Jr., James S. Chickos
|Tfus||315.||K||N/A||Geiseler and Richter, 1960||Uncertainty assigned by TRC = 3. K; TRC|
|Tfus||317.||K||N/A||Bestmann and Schulze, 1959||Uncertainty assigned by TRC = 5. K; TRC|
|Tfus||311.||K||N/A||Stephen, 1925||Uncertainty assigned by TRC = 4. K; TRC|
|Tfus||336.7||K||N/A||Krafft, 1880||Uncertainty assigned by TRC = 20. K; TRC|
Enthalpy of vaporization
|vapH (kJ/mol)||Temperature (K)||Method||Reference||Comment|
|75.7||428.||A||Stephenson and Malanowski, 1987||Based on data from 413. - 616. K. See also Stull, 1947.; AC|
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (bar)
T = temperature (K)
|413. - 615.7||5.3260||3063.378||-39.658||Stull, 1947||Coefficents calculated by NIST from author's data.|
Mass spectrum (electron ionization)
Go To: Top, 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||R.T.HOLMAN,UNIVERSITY OF MINNESOTA|
|NIST MS number||36188|
Go To: Top, Phase change data, Mass spectrum (electron ionization), Notes
Geiseler and Richter, 1960
Geiseler, G.; Richter, P., Chem. Ber., 1960, 93, 2511-21. [all data]
Bestmann and Schulze, 1959
Bestmann, H.J.; Schulze, H., Preparation of ALdehydes from Their Esters With Raney Nickel, Chem. Ber., 1959, 92, 530. [all data]
Stephen, H., J. Chem. Soc., 1925, 127, 1874. [all data]
Krafft, F., The production of laurinaldehyde c(12)h(24)o, myristinaldehyde c(14)h(28)o, palmitinaldehyde c(16)h(32)o, stearinaldehyde c(18)h(36)o: I investigation of aldehydes, Ber. Dtsch. Chem. Ges., 1880, 13, 1413-8. [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]
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]
Go To: Top, Phase change data, Mass spectrum (electron ionization), References
- Symbols used in this document:
Tfus Fusion (melting) point vapH Enthalpy of vaporization
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- Customer support for NIST Standard Reference Data products.