CoolProp, Is an open-source, cross-platform, reference-quality fluid property database that mirrors many of the functionalities of REFPROP. The codebase is written in C++ and wrappers are available for Python and C#. A DLL is also available for calling from other languages. It is currently the only open-source package that implements the extended corresponding states model for transport properties.
I’m pleased to announce that CoolProp is currently preparing itself to be a Julia registered package, [discussion here] (https://github.com/CoolProp/CoolProp/issues/1293#). Most recent works is pushed here (Need your contribution).
Any advice and suggestions will be greatly appreciated