Apparatuses, methods and storage medium associated with operating a graphics application are disclosed herein. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. In the second step, the phenol and acetone produced is reacted, preferably without intermediate purification, in the presence of a cation exchange resin catalyst that includes a cation exchange resin and a mercaptan or mercaptoalkanoic acid promoter to produce BPA.