Report of Investigations 8912: Thermodynamic Properties of Aegirine

Details

• Journal Article:
  MISSING
• Personal Author:
  Bennington, K. O. ; Beyer, Richard P. ; Brown, Robert R.
• Description:
  The thermodynamic properties of aegirine, of composition [(na0.869Fe3+0.7362Fe2+0.16Mn0.03Ca0.1121) (Al0.141Si1.9738) (O6)], were experimentally determined at the Bureau of Mines as part of its efforts to advance minerals technology. The standard enthalpy of formation was determined by hydrofluoric acid solution calorimetry. Low-temperature heat capacities were determined by adiabatic calorimetry from 19.1 to 304.6 K. The derived standard entropy was determined. The heat capacity was measured over the range 348 to 1,198 k by differential scanning calorimetry. These experimentally determined data were combined with data from the literature to calculate the Gibbs energies of formation and equilibrium constants of formation over the temperature range of the measurements. Standard enthalpies of formation are given as functions of temperature. [Description provided by NIOSH]
• Subjects:
  Minerals Mining Occupational Health Safety
• Source:
  MISSING :16 pages
• Series:
  NIOSH Numbered Publications   ; Mining Publications  
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  United States
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRC - Denver Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  21 pdf pages
• NIOSHTIC Number:
  nn:10004022
• Federal Fiscal Year:
  1984
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:de72a0a28ba48d36f5d16bb2bcf4ac5115b30c9ef2c7f37aa9856e426044f40398fc0a91e8966ef5090890239b8dfbe483ef3e4a2b6dee5ad3543fb21e56e953
• Download URL:
  https://stacks.cdc.gov/view/cdc/10744/cdc_10744_DS1.pdf
• File Type:
  [PDF - 1.03 MB ]