Shock compression data for liquids. III. Substituted methane compounds, ethylene glycol, glycerol, and ammonia

Abstract

Hugoniot data are presented for the liquid forms of the substituted methanes—dichloromethane, dibromomethane, di-iodomethane, and chloroform—ethylene glycol, glycerol, and ammonia. High explosive techniques were used to cover the range of dynamic pressures of 0.7 to 82.0 GPa. Chloroform transforms to a new form at 25.0 GPa pressure. Di-iodomethane data indicate a low pressure transition at 2.3 GPa and a second transition at a pressure greater than 66.0 GPa. The shock velocity–particle velocity (Us–Up) data for these two liquids are best represented by a linear relationship over the various forms. The Us–Up data for dichloromethane, dibromomethane, ethylene glycol, and glycerol are best fit by a quadratic expression in Up. Ammonia Us–Up data fit a linear relationship. Only dibromonethane and ammonia Us–Up curves extrapolate to the known sound speed. The others intercept at values that are 13% to 33% higher than the measured sound speed, indicative of low pressure transitions.

Shock Hugoniot compression curve for water up to 1 GPa by using a compressed gas gun

“…Much Hugoniot data for water have been collected in the very high pressure region of up to higher than 10 GPa by explosive methods since more than three decades ago. [3][4][5][6][7][8][9] According to the available Hugoniot data for water, a shock Hugoniot compression curve for water can be described by three linear segments in the shock velocityparticle velocity plane. 9 The lowest pressure segment of the shock Hugoniot is in the pressure region of up to less than 2 GPa.…”

High pressure–high temperature phase diagram of ammonia

“…Experiments in a diamond anvil cell have been so far limited to 373 K 9 . Several shock-wave experiments 10,11,12,13,14 have reported equation of state and electrical conductivity data in the range ∼2-65 GPa, 1100-4600 K, but these are restricted to the fluid phase.…”

Thermodynamic properties of organic iodine compounds

“…Cibulka et al (2001) have reviewed and critically evaluated experimental data reported in the literature for the density as a function of temperature and pressure of halogenated hydrocarbon liquids, among which are six organic iodine compounds: methyl iodide (I), diiodomethane (XII), n-propyl iodide (III), n-butyl iodide (IV), n-pentyl iodide (V), and iodobenzene (XXII). The reviewed measurements were originally reported by Bridgman (1933), Lysne (1972), Kumagai and Iwasaki (1978), Dick (1981), and Verveiko et al (1991). Density values have also been reported for liquid iodobenzene as a function of temperature by Lagemann et al (1949).…”