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Online Calculator

### Diffusivities in polar and nonpolar solvents

Machine Learning models for the prediction of diffusivities in polar (except water) and nonpolar (except supercritical carbon dioxide) solvents.

Solvent DiffusivitiesOnline Calculator

### Diffusivities in Supercritical CO_{2}

Machine Learning models for the prediction of diffusivities in supercritical carbon dioxide.

SC-CO_{2}Diffusivities

Online Calculator

### SC-CO_{2} and SC-CO_{2}/cossolvent properties

Thermodynamic properties of supercritical carbon dioxide and cossolvent mixtures calculated using the PC-SAFT equation of state.

SC-CO_{2}Properties

Online Calculator

### PC-SAFT Equation of State

Calculate properties of pure components and binary mixtures using the PC-SAFT equation of state.

PC-SAFT EoSOnline Calculator

### Adsorption isotherm fitting

Fits well known adsorption isotherm models (e.g. Linear, Langmuir, Freundlich) to experimental data.

Isotherm fittingOnline Calculator

### Air properties

Correlations to estimate the thermodynamic and transport properties of dry air at atmospheric pressure, for the range 200 - 400 K.

Air properties calculatorOnline Calculator

### Unit conversion

Covert between units of time, length, area, volume, mass, temperature, pressure, energy, speed, volumetric flow, density, and viscosity.

Unit conversionOnline Calculator

### Utilities

A collection of useful constants and functions used in chemical engineering.

Unit conversionMicrosoft Excel

### Diffusivities calculation (universal)

Universal model for accurate calculation of binary diffusivities of solutes inﬁnitely diluted in gas, liquid and supercritical solvents. Based on a Lennard-Jones model, and contains two parameters: molecular diameter of the solvent and a diffusion activation energy. The model is universal since it is applicable to polar, weakly polar, and non-polar solutes and/or solvents, over wide ranges of temperature and density.

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