The Witcher
Phosphorus is an alchemy ingredient that the following merchants will buy:
- Kalkstein in the Nonhuman district
- Abigail in Outskirts
Source
The Witcher 3: Wild Hunt
Phosphorus is an alchemy ingredient that is needed to craft the following items:
It can be found as regular random loot, random drop from tangalores, or purchased from the following merchants:
- All alchemists except the Eternal Fire Priest
- All herbalists outside of Toussaint, except Yolar
- Halfling merchant in Silverton
- Merchant in Putrid Grove
- Pinastri in her home northeast of Dun Tynne Crossroads
