Phosphorous pentasulfide
5 Pyrite + 5 Phosphate rock → 1 Phosphorous pentasulfide + 1 Iron ore
Compatible machines High pressure furnace MK 01 · High pressure furnace MK 02 · High pressure furnace MK 03 · High pressure furnace MK 04.
Research tier pY science pack 2. Intermetallics - Stage 2
3 base seconds per batch. Fractional outputs are average yields.