There is only one file type that uses the .PCT extension:
Pure Compound Text File
Chemical data file used by ChemSep, an application used to simulate distillation, extraction, and absorption operations; contains component data, such as the name, index, CAS number, formula, structure, T correlations, and molecular values.
You can import and export the data from or to a PCT file in ChemSep through the PCDmanager. To access the PCDmanager, select, click , and select or .
NOTE: Data in PCT files is stored in text format, whereas .PCD files store data in binary format.
Updated: October 5, 2015