TY - JOUR
T1 - Measurement of vapor-phase compressibility factors of monocarboxylic acids using a flow-type apparatus and their association constants
AU - Miyamoto, Shinj̀i
AU - Nakamura, Shinichi
AU - Iwai, Yoshio
AU - Arai, Yasuhiko
PY - 1999
Y1 - 1999
N2 - The vapor-phase compressibility factors of several monocarboxylic acids (formic acid, acetic acid, propionic acid, n-butyric acid, isobutyric acid, and valeric acid) were measured by a flow-type apparatus at saturated vapor pressure from 30°C to 150°C. The vapor-phase association constants for monocarboxylic acids were evaluated from the compressibility factors obtained. They can be expressed in In K = -149/R + 58 500/RT for formic acid and In K = -136/R + 58 500/RT for other acids, where K is the association constant, T is the temperature in K, and R is the gas constant in J·mol-1·K-11.
AB - The vapor-phase compressibility factors of several monocarboxylic acids (formic acid, acetic acid, propionic acid, n-butyric acid, isobutyric acid, and valeric acid) were measured by a flow-type apparatus at saturated vapor pressure from 30°C to 150°C. The vapor-phase association constants for monocarboxylic acids were evaluated from the compressibility factors obtained. They can be expressed in In K = -149/R + 58 500/RT for formic acid and In K = -136/R + 58 500/RT for other acids, where K is the association constant, T is the temperature in K, and R is the gas constant in J·mol-1·K-11.
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U2 - 10.1021/je980150d
DO - 10.1021/je980150d
M3 - Article
AN - SCOPUS:0032795806
SN - 0021-9568
VL - 44
SP - 48
EP - 51
JO - Journal of Chemical & Engineering Data
JF - Journal of Chemical & Engineering Data
IS - 1
ER -