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Chemical thermodynamic properties for 1-alkanethiols.

Authors
Finke-HL; McCullough-JP; Messerly-JF; Guthrie-GB; Douslin-DR
Source
J Chem Thermodynamics 1970 Jan; 2(1):27-41
NIOSHTIC No.
10010097
Abstract
The thermodynamic quantities (Gs - H0o)/T, (Hs - H0o)/T, Hs - H0o, Ss, and Cs were evaluated for the solid and liquid states of ethanethiol, 1-pentanethiol, 1-hexanethiol, 1-heptanethiol, and 1-decanethiol in the range 10 to 370 K. The molar entropies So were evaluated for the ideal gas states at 298.15 K of 1-pentanethiol, 1-hexanethiol, 1-heptanethiol, and 1-decanethiol. Values for heat capacity, enthalpy of fusion, triple point temperature, and purity were determined by adiabatic calorimetric measurements. The experimentally determined average entropy increments per methylene group at 298.15 K in liquid and ideal gas states, 7.78 and 9.30 cal K-1 mol-1, respectively, are very likely constant for alkanethiols above 1-pentanethiol, and the increments agree satisfactorily with those for n-alkanes, alkyl-sustituted cyclopentanes, and alkyl-substituted cyclohexanes.
Keywords
Thiols; Thermodynamic-reactions; Thermodynamics
CODEN
JCTDAF
CAS No.
75-08-1; 143-10-2
Publication Date
19700101
Document Type
OP; Journal Article
Fiscal Year
1970
NTIS Accession No.
NTIS Price
Identifying No.
OP 26-70
Issue of Publication
1
ISSN
0021-9614
NIOSH Division
BERC
Source Name
The Journal of Chemical Thermodynamics
State
OK
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