Relation between metastable zone width and induction time of butyl paraben in ethanol

CrystEngComm ◽  
2015 ◽  
Vol 17 (3) ◽  
pp. 577-586 ◽  
Author(s):  
Huaiyu Yang
Keyword(s):  
Kinetic Parameters ◽  
Induction Time ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Metastable Zone Width ◽  
Zone Width ◽  
Metastable Zone ◽  
Thermodynamic And Kinetic Parameters ◽  
Experimental Values

A relation between induction time and metastable zone width has been developed based on Classical Nucleation Theory, by which relation metastable zone width has been extrapolated from the induction time results and compared with experimental values. Influences of several thermodynamic and kinetic parameters on metastable zone width have been estimated.

Comment on “Relation between metastable zone width and induction time of butyl paraben in ethanol” by H. Yang, CrystEngComm, 2015, 17, 577

CrystEngComm ◽  
2015 ◽  
Vol 17 (23) ◽  
pp. 4402-4404 ◽  
Author(s):  
Lie-Ding Shiau
Keyword(s):  
Integral Equation ◽  
Induction Time ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Metastable Zone Width ◽  
Zone Width ◽  
Metastable Zone

An integral equation is developed to predict MSZW from the induction time results based on the classical nucleation theory.

A model for determination of the interfacial energy from the induction time or metastable zone width data based on turbidity measurements

CrystEngComm ◽  
2014 ◽  
Vol 16 (41) ◽  
pp. 9743-9752 ◽  
Author(s):  
Lie-Ding Shiau ◽  
Tsan-Sheng Lu
Keyword(s):  
Interfacial Energy ◽  
Induction Time ◽  
Metastable Zone Width ◽  
Zone Width ◽  
Metastable Zone

A model is developed to recover the interfacial energy from the induction time and the metastable zone width data.

Classical nucleation theory of homogeneous freezing of water: thermodynamic and kinetic parameters

2015 ◽  
Vol 17 (8) ◽  
pp. 5514-5537 ◽  
Author(s):  
Luisa Ickes ◽  
André Welti ◽  
Corinna Hoose ◽  
Ulrike Lohmann
Keyword(s):  
Kinetic Parameters ◽  
Thermodynamic Parameters ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Kinetic And Thermodynamic Parameters ◽  
Thermodynamic And Kinetic Parameters ◽  
Homogeneous Freezing

Different formulations of the kinetic and thermodynamic parameters of CNT are evaluated against measured nucleation rates.

scholarly journals Classical nucleation theory of immersion freezing: sensitivity of contact angle schemes to thermodynamic and kinetic parameters

2017 ◽  
Vol 17 (3) ◽  
pp. 1713-1739 ◽  
Author(s):  
Luisa Ickes ◽  
André Welti ◽  
Ulrike Lohmann
Keyword(s):  
Experimental Data ◽  
Contact Angle ◽  
Kinetic Parameters ◽  
Aerosol Particles ◽  
Nucleation Theory ◽  
Classical Nucleation Theory ◽  
Kinetic And Thermodynamic Parameters ◽  
Immersion Freezing ◽  
Thermodynamic And Kinetic Parameters ◽  
Homogeneous Freezing

Abstract. Heterogeneous ice formation by immersion freezing in mixed-phase clouds can be parameterized in general circulation models (GCMs) by classical nucleation theory (CNT). CNT parameterization schemes describe immersion freezing as a stochastic process, including the properties of insoluble aerosol particles in the droplets. There are different ways to parameterize the properties of aerosol particles (i.e., contact angle schemes), which are compiled and tested in this paper. The goal of this study is to find a parameterization scheme for GCMs to describe immersion freezing with the ability to shift and adjust the slope of the freezing curve compared to homogeneous freezing to match experimental data. We showed in a previous publication that the resulting freezing curves from CNT are very sensitive to unconstrained kinetic and thermodynamic parameters in the case of homogeneous freezing. Here we investigate how sensitive the outcome of a parameter estimation for contact angle schemes from experimental data is to unconstrained kinetic and thermodynamic parameters. We demonstrate that the parameters describing the contact angle schemes can mask the uncertainty in thermodynamic and kinetic parameters. Different CNT formulations are fitted to an extensive immersion freezing dataset consisting of size-selected measurements as a function of temperature and time for different mineral dust types, namely kaolinite, illite, montmorillonite, microcline (K-feldspar), and Arizona test dust. We investigated how accurate different CNT formulations (with estimated fit parameters for different contact angle schemes) reproduce the measured freezing data, especially the time and particle size dependence of the freezing process. The results are compared to a simplified deterministic freezing scheme. In this context, we evaluated which CNT-based parameterization scheme able to represent particle properties is the best choice to describe immersion freezing in a GCM.

Sign in / Sign up

Export Citation Format

Share Document