CONCERNING THE CRITICAL CONSTANTS OF SODIUM CHLORIDE AND POTASSIUM CHLORIDE¹

Abstract

Recently several sets of values for the critical constants of NaCl and KCl have been published. It is the purpose of this note to compare these values and to present some observations upon the methods by which they were obtained. Carlson, Eyring, and Ree2 (CER) applied the well known method of significant structures

Vapour pressure of ionic liquids

“…At low temperatures the boiling curves terminate at the triple point temperature T 3 (see Table 1 and References [2,[15][16][17]), which is close the standard melting temperature of the corresponding substance because the melting curve is very steep. At high temperatures the boiling curves of the NILs and the IFSs terminate at their critical temperatures T c (see Tables 1(a) and (c) and References [2,18]), whereas RTILs decompose at a substance specific decomposition temperature T d (see Table 1(b) and References [4,15,19]). As it is apparent from Figure 1, RTILs do not boil at ambient pressure p 0 = 10 5 Pa because boiling is preempted by decomposition; consequently Table 1 for RTILs.…”

Vapour pressure of ionic liquids

“…At low temperatures the boiling curves terminate at the triple point temperature T 3 (see Table 1 and References [2,[15][16][17]), which is close the standard melting temperature of the corresponding substance because the melting curve is very steep. At high temperatures the boiling curves of the NILs and the IFSs terminate at their critical temperatures T c (see Tables 1(a) and (c) and References [2,18]), whereas RTILs decompose at a substance specific decomposition temperature T d (see Table 1(b) and References [4,15,19]). As it is apparent from Figure 1, RTILs do not boil at ambient pressure p 0 = 10 5 Pa because boiling is preempted by decomposition; consequently Table 1(b) displays only extrapolated standard boiling temperatures T extr b for RTILs.…”

Vapor Pressure of Ionic Liquids

“…I(a) and (c) and Refs. [2,14]), whereas RTILs decompose at a substance specific decomposition temperature T d (see Tab. I(b) and Refs.…”