Magnesium chloride is a chloride composed of 74.54% chlorine and 25.48% magnesium, with the chemical formula MgCl2 and a molecular weight of 95.21. It appears as colorless, odorless small pieces, particles, and block shaped monoclinic crystals, with a bitter taste, highly susceptible to moisture, highly soluble in water, and soluble in ethanol; [8] Its relative density is 2.316~2.33 (25 ℃), melting point is 714 ℃, and boiling point reaches 1412 ℃. It exists in various hydrates, such as MgCl2 · 12H2O, MgCl2 · 6H2O, etc.

physical property:

Magnesium chloride, in terms of physical properties, usually appears as colorless plate-like crystals with strong hygroscopicity, and is easily deliquescent when exposed to air. Its aqueous solution is a colorless transparent liquid with a slightly bitter taste. Magnesium chloride has a melting point of approximately 714 and a boiling point of 1412, indicating high thermal stability.

chemical property:

In terms of chemical properties, magnesium chloride belongs to ionic compounds and can be completely ionized in water, producing magnesium ions and chloride ions. It can undergo chemical reactions with various substances, such as reacting with sodium hydroxide to produce magnesium hydroxide precipitate and sodium chloride. This characteristic is commonly used in chemical analysis and precipitation reactions. Magnesium chloride can also react with carbonates to form magnesium carbonate precipitates.