In the production of water-soluble fertilizers, liquid fertilizers, and phosphorus-potassium fertilizers, both potassium hydroxide (KOH) and potassium carbonate (K₂CO₃) can serve as potassium sources. Since neither compound is based on chloride as its principal anion, both are commonly considered for fertilizer systems designed for chloride-sensitive crops or applications where chloride content needs to be controlled. However, when viewed as fertilizer raw materials, rather t