Ammoniated mercuric chloride comprising mercury, chlorine, and ammonia has distinctive characteristics and properties. This chemical compound also referred to as white precipitate is a white crystalline powder. Adding ammonia to mercuric chloride solution results in the formation of this complex compound. When it comes to its solubility, ammoniated mercuric chloride is sparingly soluble in water. It must be stored in cool, dark place as it is sensitive to light and might decompose over time, releasing toxic mercury vapors. Its exposure can lead to severe health risk, which is why it must be handled and used carefully.