Open AccessSurface Tension for Silanes, Refrigerants, and Carboxylic Acids: Simple Corresponding State Correlations versus DIPPR Data
Author(s) -
Shangguo Yang,
Jianxiang Tian,
Hua Jiang,
A. Mulero,
I. Cachadiña
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c00913
Subject(s) - refrigerant , silanes , surface tension , absolute deviation , thermodynamics , chemistry , relative standard deviation , function (biology) , simple (philosophy) , exponential function , simple correlation , mathematics , organic chemistry , correlation , chromatography , mathematical analysis , physics , silane , statistics , geometry , evolutionary biology , biology , detection limit , gas compressor , philosophy , epistemology
A simple corresponding state-based correlation, whose analytical expression contains just one term with an exponential function, is proposed to calculate the surface tension of 36 silanes, 29 carboxylic acids, and 81 refrigerants as a function of temperature. This correlation only requires critical temperature, maximum value of surface tension, and its corresponding temperature in the DIPPR database as inputs for each liquid considered. The correlation allows us to calculate the accepted DIPPR data for silanes with a mean absolute average deviation (AAD) of 2.75%, 2.42% for acids, and 3.32% for refrigerants. Moreover, it gives AADs below 3% for 99 fluids. The mean deviation for the 146 fluids is 3.0%, which is practically equal to the results obtained when two terms are used in the analytical expression.