Chemical Thermodynamic Properties for 1-Alkanethiols

Details

• Personal Author:
  Douslin DR ; Finke HL ; Guthrie GB ; McCullough JP ; Messerly JF
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety Sulfhydryl Compounds
• Keywords:
  Thermodynamic-reactions Thermodynamics Thiols
• Series:
  Mining Publications
• ISSN:
  0021-9614
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Oklahoma ; OSHA Region 6
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  BERC - Bartlesville Energy Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  27-41
• Volume:
  2
• Issue:
  1
• NIOSHTIC Number:
  nn:10010097
• Citation:
  J Chem Thermodynamics 1970 Jan; 2(1):27-41
• CAS Registry Number:
  1-Decanethiol (CAS RN 143-10-2) ; Ethanethiol (CAS RN 75-08-1)
• Federal Fiscal Year:
  1970
• Peer Reviewed:
  False
• Source Full Name:
  The Journal of Chemical Thermodynamics
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:bb947b291cfb4c4dd6b77254d9160617d16c0f6a95c25f726342b0ada96bc124d0446a83554f7b7e0e6b5fb37153a8da0741a9d8f707df65f25be33417194905
• Download URL:
  https://stacks.cdc.gov/view/cdc/219952/cdc_219952_DS1.pdf
• File Type:
  [PDF - 885.10 KB ]