THERMODYNAMIC PROPERTIES OF ORGANIC DERIVATIVES OF THE LIGHTER ELEMENTS.
Abstract
Thermochemical research was carried out on ethylenimine, four aliphatic diamines, and two organic fluorine compounds. Results for ethylenimine include an experimental determination of its thermodynamic properties by means of low-temperature calorimetry, combustion calorimetry, and vapor pressure measurements. The measured third-law entropy is discussed in light of a recent Russian value calculated from spectroscopic information. Work on the thermochemistry of aliphatic diamines includes purification of samples of 1,2-diaminoethane, 1,2-diaminopropane, 1,2-diaminobutane, and 1,2-diamino-2-methylpropane; heats of combustion of 1,2-diaminopropane and 1,2-diamino-2-methylpropane; and some low-temperature thermal measurements on 1,2-diaminopropane. P-V-T relations determined for hexafluoroethane include vapor pressures up to the critical state, critical constants, Pc, Tc, and Vc, and compressibility of the gas up to 350C and 400 atmospheres. Preliminary values for the vapor heat capacity of hexafluorobenzene are presented. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1967
- Accession Number
- AD0653986
Entities
People
- Donald R. Douslin
- George B. Guthrie
- Herman L. Finke
- Samuel S. Todd
- William D. Good