Potassium carbonate is an inorganic salt with the formula K2CO3. It appears as a white, hygroscopic powder or granules and is highly soluble in water, forming a strongly alkaline solution. Historically known as potash, it is produced industrially by the electrolysis of potassium chloride or from potassium hydroxide and carbon dioxide. In food applications, it serves as a leavening agent, pH regulator, and processing aid in cocoa, noodles, and certain baked goods. Chemically, it acts as a base and is used in glass manufacturing, soap production, and as a drying agent. Its aqueous solutions have a pH around 11-12, making it useful for neutralizing acids but requiring careful handling to avoid irritation.