Antonyms for "Potassium Compounds" refer to substances or chemicals that are the opposite or have a contrasting effect on potassium compounds. There are several antonyms for potassium compounds including, but not limited to, chlorine, sulfur, calcium, and magnesium compounds. These compounds have different chemical properties that oppose the properties of potassium compounds. Chlorine, for instance, is a halogen that is highly reactive and corrosive in nature, which makes it an antonym to potassium compounds. On the other hand, sulfur, calcium, and magnesium compounds are non-reactive and do not easily combine with potassium compounds, making them antonyms as well. Understanding antonyms for potassium compounds is important in the study of chemistry and in the identification of potential hazards resulting from combining different chemicals.