skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures

Abstract

Aldehydes are common in a variety of geologic environments and are derived from a number of sources, both natural and anthropogenic. Experimental data for aqueous aldehydes were taken from the literature and used, along with parameters for the revised Helgeson-Kirkham-Flowers (HKF) equations of state, to estimate standard partial molal thermodynamic data for aqueous straight-chain alkyl aldehydes at high temperatures and pressures. Examples of calculations involving aldehydes in geological environments are given, and the stability of aldehydes relative to carboxylic acids is evaluated. These calculations indicate that aldehydes may be intermediates in the formation of carboxylic acids from hydrocarbons in sedimentary basins brines and hydrothermal systems like they are in the atmosphere. The data and parameters summarized here allow evaluation of the role of aldehydes in the formation of prebiotic precursors, such as amino acids and hydroxy acids on the early Earth and in carbonaceous chondrite parent bodies. 97 refs., 5 figs., 3 tabs.

Authors:
;  [1]
  1. Washington Univ., St. Louis, MO (United States)
Publication Date:
OSTI Identifier:
5577092
Resource Type:
Journal Article
Journal Name:
Geochimica et Cosmochimica Acta; (United States)
Additional Journal Information:
Journal Volume: 57:16; Journal ID: ISSN 0016-7037
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALDEHYDES; THERMODYNAMIC PROPERTIES; CARBOXYLIC ACIDS; SYNTHESIS; HYDROTHERMAL SYSTEMS; MATHEMATICAL MODELS; ACETALDEHYDE; AMINO ACIDS; BRINES; EQUATIONS OF STATE; FORMALDEHYDE; HIGH PRESSURE; HYDROCARBONS; HYDROXY ACIDS; SEDIMENTARY BASINS; TEMPERATURE RANGE 0400-1000 K; ENERGY SYSTEMS; EQUATIONS; GEOLOGIC STRUCTURES; GEOTHERMAL SYSTEMS; ORGANIC ACIDS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; TEMPERATURE RANGE; 400201* - Chemical & Physicochemical Properties

Citation Formats

Schulte, M D, and Shock, E L. Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures. United States: N. p., 1993. Web. doi:10.1016/0016-7037(93)90337-V.
Schulte, M D, & Shock, E L. Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures. United States. https://doi.org/10.1016/0016-7037(93)90337-V
Schulte, M D, and Shock, E L. Sun . "Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures". United States. https://doi.org/10.1016/0016-7037(93)90337-V.
@article{osti_5577092,
title = {Aldehydes in hydrothermal solution: Standard partial molal thermodynamic properties and relative stabilities at high temperatures and pressures},
author = {Schulte, M D and Shock, E L},
abstractNote = {Aldehydes are common in a variety of geologic environments and are derived from a number of sources, both natural and anthropogenic. Experimental data for aqueous aldehydes were taken from the literature and used, along with parameters for the revised Helgeson-Kirkham-Flowers (HKF) equations of state, to estimate standard partial molal thermodynamic data for aqueous straight-chain alkyl aldehydes at high temperatures and pressures. Examples of calculations involving aldehydes in geological environments are given, and the stability of aldehydes relative to carboxylic acids is evaluated. These calculations indicate that aldehydes may be intermediates in the formation of carboxylic acids from hydrocarbons in sedimentary basins brines and hydrothermal systems like they are in the atmosphere. The data and parameters summarized here allow evaluation of the role of aldehydes in the formation of prebiotic precursors, such as amino acids and hydroxy acids on the early Earth and in carbonaceous chondrite parent bodies. 97 refs., 5 figs., 3 tabs.},
doi = {10.1016/0016-7037(93)90337-V},
url = {https://www.osti.gov/biblio/5577092}, journal = {Geochimica et Cosmochimica Acta; (United States)},
issn = {0016-7037},
number = ,
volume = 57:16,
place = {United States},
year = {1993},
month = {8}
}