Magnesium chloride can form hexahydrate, namely magnesium chloride hexahydrate (MgCl2·6H2O), which contains six crystal waters. Whether it is anhydrous magnesium chloride or hexahydrate magnesium chloride, they all have one common feature: easy to deliquesce and easily soluble in water. Therefore, we should store it in a dry and cool place when storing.

Function:
1) Metallurgy: Used to make refractory material and raw material of making number 2 flux and smelting magnesium.

2) Chemical: Used to make all kinds of magnesium salt, such as magnesium oxide, magnesium hydroxide, magnesium carbonate,  cracker kindling and raw material of antifreeze.

3) Construction material: With magnesite (MgO), it can be made into hard corrosion resistance magnesia cement, artificial marble,  floor, ceiling, decorative board, fireproof board, partition board, magnesite well lid, bathtub, door and window frame and mobile home.

4) Machine: In daily life, magnesite and it can be made into machine packing chest, triangle cushion and furniture etc.

5) Food: Bean curd made from solution of magnesium chloride is tenderer and delicious .Also it can act as some food additives.

6) Communication: As snow thawing agent in road, quicker ice melting speed, small vehicle corrosion.

7) Medicine: Magnesium chloride can be made into a kind of medicine.

8) Agriculture: Used to make magnesium fertilizer, potassium magnesium fertilizer and cotton defoliant.Kojic Acid