Critical temperature data

Physical and Chemical Properties - Physical State at 15 °C and 1 atm. Liquid Molecular Weight 73.1 Boiling Point at 1 atm. 145, 63, 336 Freezing Point -155, -104, 169 Critical Temperature Data not available Critical Pressure Data not available Specific Gravity 0.721 at 20°C (liquid) Vapor (Gas) Density 2.52 Ratio of Specific Heats of Vapor (Gas) 1.073 at 20°C Latent Heat of Vaporization 178.09, 98.94, 4.160 Heat of Combustion -17,600, -9,780, -409 Heat of Decomposition Not pertinent. 

Every gas has a critical temperature above which it caimot be liquefied by the application of pressure alone. The critical pressure is that required to liquefy a gas at its critical temperature. Data for common gases are given in Table 4.5. As a consequence ... 

To this point we have applied the critical temperature to both viscosity and density calculations. Already this critical property Tc is seen as valued data to have for any hydrocarbon discrete single component or a mixture of components. It is therefore important to secure critical temperature data resources as much as practical. I find that a simple table listing these critical properties of discrete components is a valued data resource and should be made available to all. I therefore include Table 1.3 listing these critical component properties for 21 of our more common components. A good estimate can be made for most other components by relating them to the family types listed in Table 1.3. 

Chemical Designations — Synonyms 1-Butene Oxide 1,2-Butylene Oxide alpha-Butylene Oxide 1,2-Epoxybutane Chemical Formula C2H5CHCH2O. Observable Characteristics — Physical State (as normally shipped) Liquid Color Colorless Odor Pungent. Physical and Chemical Properties — Physical State at 15 C and 1 atm. Liquid Molecular Weight 72 Boiling Point at 1 atm. 145 63, 336 Freezing Point <-58, <-50, <223 Critical Temperature Data not available ... 

Figure 50 Diameters pd averaged over the first (surface) water layer and near the pore center (inner layer) as functions of temperature T in pore with = 30 A. Solid line linear fit of /J

---