Potassium periodate and zinc carbonate are equally soluble in water. Potassium periodate and zinc carbonate are equally soluble in water. Potassium periodate is more soluble in water than zinc carbonate. Potassium periodate is more soluble in water than zinc carbonate. Zinc carbonate is more soluble in water than potassium periodate. Zinc carbonate is more soluble in water than potassium periodate. Potassium periodate is more soluble in lipids than zinc carbonate. Potassium periodate is more soluble in lipids than zinc carbonate. Zinc carbonate is more soluble at higher temperatures than potassium periodate. Zinc carbonate is more soluble at higher temperatures than potassium periodate.