sentence: Potassium sulfide is a colorless solid when it is pure.
sentences_after: Sometimes it is not pure and it is yellow-brown. It reacts with water to make KHS, potassium hydrogen sulfide, and potassium hydroxide. It reacts with acids to make hydrogen sulfide and a potassium salt.
concept_name: potassium sulfide
headings: Potassium sulfide Properties
categories: Potassium compounds Sulfur compounds