Then it could be reinserted into the purifier, and reused and rejuvenated multiple times, until it was thoroughly sulphuretted, and then sent to the sulphuric acid works for a small profit.
Then it could be reinserted into the purifier. Then it could be reused. Then it could be rejuvenated multiple times. It was thoroughly sulphuretted. Then it could be then sent to the sulphuric acid works for a small profit.