Category: Recipes
Preparation of 1M Magnesium Chloride (MgCl2) Stock Solution
Magnesium Chloride (MgCl2) is soluble in water. Magnesium chloride is available in anhydrous as well as hydrated forms. Since anhydrous Magnesium chloride is hygroscopic (quickly absorbs water from the air), it is convenient to use hydrated forms that are easy to weigh out the right amount accurately. For this reason, Magnesium chloride hexahydrate (MgCl2.6H2O, Molecular Weight: 203.30) is often used to prepare a 1 M Magnesium chloride solution. A 1M stock solution can be prepared by dissolving 203.3 g of MgCl2.6H2O (Molecular Weight: 203.30) in water to a final volume of 100 ml. In the following section, we describe a procedure to prepare 100 ml of 1M MgCl2 stock solution.